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Anatomy - Digestive System

Total questions: 72

Worksheet time: 36mins

Name
Class
Date
1.

Absorption

a)

Nutrients passing through the blood vessels in the small intestine and being dispersed to cells throughout the body.

b)

Muscle contractions in the muscularis that push food through the G.I. tract

c)

The space between the parietal and visceral portions of the peritoneal membranes

d)

One of two muscular sphincters, this one is located at the end of the esophagus and functions to prevent food from the stomach from reentering the esophagus.

2.

Ascending colon

a)

A portion of the colon that extends superiorly from the cecum and along the right abdominal wall.

b)

Drains the bile within the gallbladder into the hepatopancreatic ampulla

c)

A portion of the colon that descends inferiorly along the left abdominal wall to the pelvic region.

d)

The first 10 inches of the small intestine.

3.

Bile

a)

A yellowish-green fluid that helps break down fats in the small intestine.

b)

The central portion of the stomach

c)

Permanent damage to the liver lobules that can be a result of a virus or caused by chronic alcohol abuse

d)

Fleshy, mobile organs formed by the orbicularis oris muscle, connective tissue, and skin

4.

Body

a)

The central portion of the stomach.

b)

The narrow, upper region of the stomach found just below the lower esophageal sphincter.

c)

Part of the oral cavity that consists of skin, subcutaneous fat, and facial muscles that form the lateral walls of the mouth.

d)

s Fleshy, mobile organs formed by the orbicularis oris muscle, connective tissue, and skin

5.

Cardia

a)

The narrow, upper region of the stomach found just below the lower esophageal sphincter.

b)

The first region of the large intestine, a pouch that hangs inferiorly to where the large intestine connects to the small intestine.

c)

A congenital birth defect in which the roof of the mouth does not completely fuse together, leaving an opening in the roof of the mouth.

d)

The first 10 inches of the small intestine

6.

Cecum

a)

The first region of the large intestine, a pouch that hangs inferiorly to where the large intestine connects to the small intestine.

b)

Permanent damage to the liver lobules that can be a result of a virus or caused by chronic alcohol abus

c)

Cells of the liver responsible for production of bile, processing of vitamins, synthesis of blood proteins, detoxification of drugs and alcohol, comprising about 60% of liver tissue.

d)

The innermost layer of the G.I. tract containing the smooth muscle, connective tissue, lymph nodes, and mucus secreting cells.

7.

Cellular utilization

a)

The use of nutrients from the food in the body for chemical reactions including enzyme synthesis, cell division, growth and repair, and production of energy.

b)

Bacterium that causes ulcers.

c)

The innermost layer of the G.I. tract containing the smooth muscle, connective tissue, lymph nodes, and mucus secreting cells.

d)

Part of the oral cavity that connects the nasal and oral cavities and provides passage for both air and food; commonly known as the throat.

8.

Cheeks

a)

Part of the oral cavity that consists of skin, subcutaneous fat, and facial muscles that form the lateral walls of the mouth.

b)

The narrow, upper region of the stomach found just below the lower esophageal sphincter

c)

One of two muscular sphincters, this one is located at the beginning of the esophagus.

d)

A mass of skeletal muscle in the oral cavity covered with mucous membrane.

9.

Cirrhosis

a)

Permanent damage to the liver lobules that can be a result of a virus or caused by chronic alcohol abuse

b)

Peptic ulcers located in the duodenum, the upper portion of the small intestine

c)

Inflammation of the liver.

d)

The final portion of the digestive tract found between the small intestine and the anus, extending about 5 feet. It forms, stores, and expels feces from the body.

10.

Cleft lips

a)

A congenital birth defect characterized by a split in the lips, often associated with a cleft palate

b)

Part of the oral cavity that consists of skin, subcutaneous fat, and facial muscles that form the lateral walls of the mouth.

c)

Peptic ulcers located in the esophagus

d)

The final portion of the small intestine, extending about 6-7 feet long

11.

Cleft palate

a)

A congenital birth defect in which the roof of the mouth does not completely fuse together, leaving an opening in the roof of the mouth.

b)

A congenital birth defect characterized by a split in the lips, often associated with a cleft palate.

c)

Drains the bile within the gallbladder into the hepatopancreatic ampulla.

d)

Tissue in the mouth that connects the underside of the tongue to the floor of the mouth.

12.

Colon

a)

The second region of the large intestine, consisting of the ascending colon, transverse colon, descending colon, and the sigmoid colon.

b)

The first 10 inches of the small intestine.

c)

A tube that connects the pharynx to the stomach, positioned posterior to the trachea.

d)

The second portion of the small intestine where most absorption occurs, extending about 3 feet long.

13.

Common bile duct

a)

Drains the bile within the gallbladder into the hepatopancreatic ampulla.

b)

A portion of the colon that descends inferiorly along the left abdominal wall to the pelvic region

c)

Folds in the mucosa layer of the stomach that allow the stomach to stretch.

d)

The final portion of the digestive tract found between the small intestine and the anus, extending about 5 feet. It forms, stores, and expels feces from the body.

14.

Descending colon

a)

A portion of the colon that descends inferiorly along the left abdominal wall to the pelvic region.

b)

The final portion of the small intestine, extending about 6-7 feet long.

c)

The second portion of the small intestine where most absorption occurs, extending about 3 feet long.

d)

The final portion of the digestive tract found between the small intestine and the anus, extending about 5 feet. It forms, stores, and expels feces from the body

15.

Duodenal ulcers

a)

Peptic ulcers located in the duodenum, the upper portion of the small intestine.

b)

Excessive fluid build-up in the body.

c)

Inflammation of the liver.

d)

A ring-like muscle that contracts in order to close an opening of the body

16.

Duodenum

a)

The first 10 inches of the small intestine.

b)

The final portion of the small intestine, extending about 6-7 feet long.

c)

The second portion of the small intestine where most absorption occurs, extending about 3 feet long.

d)

The final portion of the digestive tract found between the small intestine and the anus, extending about 5 feet. It forms, stores, and expels feces from the body.

17.

Edema

a)

Excessive fluid build-up in the body.

b)

Inflammation of the liver.

c)

A serous membrane that lines the wall of the abdominal cavity.

d)

A serous membrane that lines the outer surface of the abdominal organs

18.

Esophageal ulcers

a)

Peptic ulcers located in the esophagus

b)

Peptic ulcers located in the duodenum, the upper portion of the small intestine.

c)

Bacterium that causes ulcers.

d)

s Inflammation of the liver.

19.

Esophagus

a)

A tube that connects the pharynx to the stomach, positioned posterior to the trachea

b)

The first 10 inches of the small intestine.

c)

Fleshy, mobile organs formed by the orbicularis oris muscle, connective tissue, and skin.

d)

The innermost layer of the G.I. tract containing the smooth muscle, connective tissue, lymph nodes, and mucus secreting cells.

20.

Fundus

a)

The dome-shaped portion at the left of the stomach.

b)

A pear-shaped, sac-like organ attached to the inferior surface of the liver with a primary function of storing bile produced by the liver.

c)

The final portion of the small intestine, extending about 6-7 feet long.

d)

Functional units of hepatic (liver) cells.

21.

Gallbladder

a)

A pear-shaped, sac-like organ attached to the inferior surface of the liver with a primary function of storing bile produced by the liver.

b)

Part of the digestive system that is one long sac that extends from the mouth to the anus; also known as the G.I. tract or the alimentary canal.

c)

The second portion of the small intestine where most absorption occurs, extending about 3 feet long.

d)

The innermost layer of the G.I. tract containing the smooth muscle, connective tissue, lymph nodes, and mucus secreting cells.

22.

Gastric rugae

a)

Folds in the mucosa layer of the stomach that allow the stomach to stretch

b)

The anterior portion of the roof of the oral cavity formed by the palatine process of the maxillae, palatine bones and the cover of mucous membranes.

c)

A mass of skeletal muscle in the oral cavity covered with mucous membrane.

d)

One of two muscular sphincters, this one is located at the beginning of the esophagus.

23.

Gastric ulcers

a)

Peptic ulcers located in the stomach.

b)

Peptic ulcers located in the duodenum, the upper portion of the small intestine.

c)

Peptic ulcers located in the esophagus.

d)

Folds in the mucosa layer of the stomach that allow the stomach to stretch.

24.

Gastrointestinal tract

a)

Part of the digestive system that is one long sac that extends from the mouth to the anus; also known as the G.I. tract or the alimentary canal.

b)

Part of the oral cavity that connects the nasal and oral cavities and provides passage for both air and food; commonly known as the throat.

c)

The organ that connects the stomach with the large intestine.

d)

A worm-like projection attached to the inferior medial portion of the cecum.

25.

Hard palate

a)

The anterior portion of the roof of the oral cavity formed by the palatine process of the maxillae, palatine bones and the cover of mucous membranes.

b)

Cells of the liver responsible for production of bile, processing of vitamins, synthesis of blood proteins, detoxification of drugs and alcohol, comprising about 60% of liver tissue.

c)

The dome-shaped portion at the left of the stomach.

d)

A tube that connects the pharynx to the stomach, positioned posterior to the trachea.

26.

Helicobacter pylori (H. pylori)

a)

Bacterium that causes ulcers.

b)

Inflammation of the liver.

c)

Functional units of hepatic (liver) cells.

d)

The last 7.5 inches of the G.I. tract.

27.

Hepatic cells

a)

Cells of the liver responsible for production of bile, processing of vitamins, synthesis of blood proteins, detoxification of drugs and alcohol, comprising about 60% of liver tissue.

b)

Cells of the liver responsible for removing old red blood cells and destroying microbes and cell debris, comprising 40% of liver tissue.

c)

Muscle contractions in the muscularis that push food through the G.I. tract.

d)

Permanent damage to the liver lobules that can be a result of a virus or caused by chronic alcohol abuse.

28.

Hepatitis

a)

Inflammation of the liver

b)

Bacterium that causes ulcers.

c)

Peptic ulcers located in the esophagus.

d)

The first 10 inches of the small intestine.

29.

Hepatopancreatic ampulla

a)

The union of the common bile duct and the pancreatic duct which opens into the duodenum of the small intestine.

b)

A portion of the colon that extends superiorly from the cecum and along the right abdominal wall.

c)

The narrow, upper region of the stomach found just below the lower esophageal sphincter.

d)

The dome-shaped portion at the left of the stomach.

30.

Ileum

a)

The final portion of the small intestine, extending about 6-7 feet long.

b)

The second portion of the small intestine where most absorption occurs, extending about 3 feet long.

c)

The first 10 inches of the small intestine.

d)

The central portion of the stomach.

31.

Jejunum

a)

The second portion of the small intestine where most absorption occurs, extending about 3 feet long.

b)

The final portion of the small intestine, extending about 6-7 feet long.

c)

The first 10 inches of the small intestine.

d)

The central portion of the stomach.

32.

Kupffer cells

a)

Cells of the liver responsible for removing old red blood cells and destroying microbes and cell debris, comprising 40% of liver tissue.

b)

Cells of the liver responsible for production of bile, processing of vitamins, synthesis of blood proteins, detoxification of drugs and alcohol, comprising about 60% of liver tissue.

c)

Drains the bile within the gallbladder into the hepatopancreatic ampulla.

d)

Functional units of hepatic (liver) cells

33.

Large intestine

a)

The final portion of the digestive tract found between the small intestine and the anus, extending about 5 feet. It forms, stores, and expels feces from the body

b)

The second portion of the small intestine where most absorption occurs, extending about 3 feet long.

c)

The final portion of the small intestine, extending about 6-7 feet long.

d)

The first 10 inches of the small intestine.

34.

Lingual frenulum

a)

Tissue in the mouth that connects the underside of the tongue to the floor of the mouth

b)

Fleshy, mobile organs formed by the orbicularis oris muscle, connective tissue, and skin.

c)

Functional units of hepatic (liver) cells.

d)

Bacterium that causes ulcers

35.

Lips

a)

Fleshy, mobile organs formed by the orbicularis oris muscle, connective tissue, and skin.

b)

Tissue in the mouth that connects the underside of the tongue to the floor of the mouth.

c)

Part of the oral cavity that consists of skin, subcutaneous fat, and facial muscles that form the lateral walls of the mouth.

d)

The narrow, upper region of the stomach found just below the lower esophageal sphincter.

36.

Liver lobules

a)

Functional units of hepatic (liver) cells

b)

A wedge-shaped organ that is part of the digestive system, located immediately below the diaphragm. It functions to get rid of toxins, regulate blood sugar levels, and produce bile.

c)

The layer of the G.I. tract responsible for pushing food through the digestive system by contracting in a series of waves

d)

A serous membrane that lines the wall of the abdominal cavity.

37.

Liver transplant

a)

Surgery to replace a diseased liver with a healthy liver from a deceased organ donor

b)

Ulcer occurring when the mucous membrane layer of the G.I. tract erodes creating an open sore.

c)

A mass of skeletal muscle in the oral cavity covered with mucous membrane.

d)

A serous membrane that lines the outer surface of the abdominal organs

38.

Liver

a)

A wedge-shaped organ that is part of the digestive system, located immediately below the diaphragm. It functions to get rid of toxins, regulate blood sugar levels, and produce bile.

b)

One of two muscular sphincters, this one is located at the end of the esophagus and functions to prevent food from the stomach from reentering the esophagus.

c)

A soft, pistol-shaped organ that is both an exocrine and endocrine gland, located posterior to the stomach and level with the top of the small intestines. Its two primary functions are to secrete digestive enzymes and produce insulin and glucagon.

d)

Part of the oral cavity that connects the nasal and oral cavities and provides passage for both air and food; commonly known as the throat.

39.

Lower esophageal sphincter

a)

One of two muscular sphincters, this one is located at the end of the esophagus and functions to prevent food from the stomach from reentering the esophagus.

b)

A muscle between the pylorus and the small intestine which regulates the exit of gastric contents.

c)

One of two muscular sphincters, this one is located at the beginning of the esophagus

d)

The union of the common bile duct and the pancreatic duct which opens into the duodenum of the small intestine

40.

Mesentery

a)

A double-layered fold of the parietal peritoneum along the posterior aspect of the abdominal cavity.

b)

The innermost layer of the G.I. tract containing the smooth muscle, connective tissue, lymph nodes, and mucus secreting cells.

c)

Folds in the mucosa layer of the stomach that allow the stomach to stretch.

d)

Excessive fluid build-up in the body.

41.

Mucosa

a)

The innermost layer of the G.I. tract containing the smooth muscle, connective tissue, lymph nodes, and mucus secreting cells.

b)

A double-layered fold of the parietal peritoneum along the posterior aspect of the abdominal cavity.

c)

A serous membrane that lines the wall of the abdominal cavity.

d)

A muscle between the pylorus and the small intestine which regulates the exit of gastric contents.

42.

Muscle sphincter

a)

A ring-like muscle that contracts in order to close an opening of the body

b)

A muscle between the pylorus and the small intestine which regulates the exit of gastric contents.

c)

One of two muscular sphincters, this one is located at the beginning of the esophagus.

d)

Tissue in the mouth that connects the underside of the tongue to the floor of the mouth.

43.

Muscularis

a)

The layer of the G.I. tract responsible for pushing food through the digestive system by contracting in a series of waves

b)

A double-layered fold of the parietal peritoneum along the posterior aspect of the abdominal cavity.

c)

The space between the parietal and visceral portions of the peritoneal membranes.

d)

The funnel shaped terminal end of the stomach

44.

Oral cavity

a)

Opening on the face formed by the cheeks, lips, and hard and soft palates; location at which food enters the G.I. tract, also known as the mouth or the buccal cavity.

b)

Part of the oral cavity that connects the nasal and oral cavities and provides passage for both air and food; commonly known as the throat.

c)

A mass of skeletal muscle in the oral cavity covered with mucous membrane.

d)

A serous membrane that lines the wall of the abdominal cavity.

45.

Pancreas

a)

A soft, pistol-shaped organ that is both an exocrine and endocrine gland, located posterior to the stomach and level with the top of the small intestines. Its two primary functions are to secrete digestive enzymes and produce insulin and glucagon.

b)

A wedge-shaped organ that is part of the digestive system, located immediately below the diaphragm. It functions to get rid of toxins, regulate blood sugar levels, and produce bile.

c)

Fleshy, mobile organs formed by the orbicularis oris muscle, connective tissue, and skin.

d)

The second portion of the small intestine where most absorption occurs, extending about 3 feet long.

46.

Parietal peritoneum

a)

A serous membrane that lines the wall of the abdominal cavity.

b)

The layer of the G.I. tract responsible for pushing food through the digestive system by contracting in a series of waves

c)

The innermost layer of the G.I. tract containing the smooth muscle, connective tissue, lymph nodes, and mucus secreting cells.

d)

A salivary gland that lies in the floor of the mouth on the side of the tongue.

47.

Parotid gland

a)

The largest salivary gland, located inferior and anterior to the ear.

b)

A muscular arch covered by a mucous membrane on the posterior portion of the roof of the oral cavity.

c)

A salivary gland located in the mouth inferior to the body of the mandible about midway along the inner side of the jaw.

d)

A serous membrane that lines the outer surface of the abdominal organs.

48.

Peptic ulcers

a)

Ulcer occurring when the mucous membrane layer of the G.I. tract erodes creating an open sore.

b)

Inflammation of the liver

c)

Peptic ulcers located in the esophagus.

d)

A portion of the colon that descends inferiorly along the left abdominal wall to the pelvic region.

49.

Peristalsis

a)

Muscle contractions in the muscularis that push food through the G.I. tract

b)

Serous membranes of the abdominal cavity, there are two types

c)

A muscle between the pylorus and the small intestine which regulates the exit of gastric contents.

d)

The funnel shaped terminal end of the stomach.

50.

Peritoneal cavity

a)

The space between the parietal and visceral portions of the peritoneal membranes.

b)

Serous membranes of the abdominal cavity, there are two types

c)

A muscle between the pylorus and the small intestine which regulates the exit of gastric contents.

d)

A portion of the colon that extends horizontally and crosses the upper abdominal cavity

51.

Peritoneal membranes

a)

Serous membranes of the abdominal cavity, there are two types

b)

The innermost layer of the G.I. tract containing the smooth muscle, connective tissue, lymph nodes, and mucus secreting cells.

c)

Tissue in the mouth that connects the underside of the tongue to the floor of the mouth.

d)

Cells of the liver responsible for production of bile, processing of vitamins, synthesis of blood proteins, detoxification of drugs and alcohol, comprising about 60% of liver tissue

52.

Pharynx

a)

Part of the oral cavity that connects the nasal and oral cavities and provides passage for both air and food; commonly known as the throat.

b)

A muscle between the pylorus and the small intestine which regulates the exit of gastric contents.

c)

The funnel shaped terminal end of the stomach.

d)

a The second layer of the G.I. tract containing the blood vessels, connective tissue, lymph vessels, glands, and nerve plexuses.

53.

Pyloric sphincter

a)

A muscle between the pylorus and the small intestine which regulates the exit of gastric contents.

b)

One of two muscular sphincters, this one is located at the beginning of the esophagus.

c)

A mass of skeletal muscle in the oral cavity covered with mucous membrane.

d)

A ring-like muscle that contracts in order to close an opening of the body.

54.

Pylorus

a)

The funnel shaped terminal end of the stomach.

b)

The last 7.5 inches of the G.I. tract.

c)

A portion of the colon shaped like an “S” that leads to the rectum

d)

A hard, bony, enamel coated structure found in the oral cavity used for chewing and biting.

55.

Rectum

a)

The last 7.5 inches of the G.I. tract

b)

The funnel shaped terminal end of the stomach.

c)

A mass of skeletal muscle in the oral cavity covered with mucous membrane.

d)

The first 10 inches of the small intestine.

56.

Saliva

a)

A liquid secreted in the mouth by the salivary glands that aids in the digestive process

b)

Digestive glands in the mouth that produce saliva.

c)

A yellowish-green fluid that helps break down fats in the small intestine.

d)

Nutrients passing through the blood vessels in the small intestine and being dispersed to cells throughout the body.

57.

Salivary glands

a)

Digestive glands in the mouth that produce saliva.

b)

The outer layer of the G.I. tract containing the visceral peritoneum.

c)

The second layer of the G.I. tract containing the blood vessels, connective tissue, lymph vessels, glands, and nerve plexuses.

d)

A fleshy extension that hangs at the back of the throat from the soft palate

58.

Serosa

a)

The outer layer of the G.I. tract containing the visceral peritoneum.

b)

The organ that connects the stomach with the large intestine.

c)

A portion of the colon that extends horizontally and crosses the upper abdominal cavity

d)

A pear-shaped, sac-like organ attached to the inferior surface of the liver with a primary function of storing bile produced by the liver.

59.

Sigmoid colon

a)

A portion of the colon shaped like an “S” that leads to the rectum.

b)

A portion of the colon that extends horizontally and crosses the upper abdominal cavity.

c)

One of two muscular sphincters, this one is located at the beginning of the esophagus.

d)

A fleshy extension that hangs at the back of the throat from the soft palate.

60.

Small intestine

a)

The organ that connects the stomach with the large intestine.

b)

A mass of skeletal muscle in the oral cavity covered with mucous membrane.

c)

A portion of the colon that extends horizontally and crosses the upper abdominal cavity.

d)

A worm-like projection attached to the inferior medial portion of the cecum.

61.

Soft palate

a)

A muscular arch covered by a mucous membrane on the posterior portion of the roof of the oral cavity.

b)

Opening on the face formed by the cheeks, lips, and hard and soft palates; location at which food enters the G.I. tract, also known as the mouth or the buccal cavity.

c)

The dome-shaped portion at the left of the stomach.

d)

The anterior portion of the roof of the oral cavity formed by the palatine process of the maxillae, palatine bones and the cover of mucous membranes.

62.

Stomach

a)

A bean-shaped muscular organ that holds food and connects the esophagus with the small intestine.

b)

A fleshy extension that hangs at the back of the throat from the soft palate

c)

Finger-like projections that line the inner surface of the small intestine allowing for easy transport of nutrients from the intestines into the blood

d)

The space between the parietal and visceral portions of the peritoneal membranes

63.

Sublingual gland

a)

A salivary gland that lies in the floor of the mouth on the side of the tongue.

b)

A salivary gland located in the mouth inferior to the body of the mandible about midway along the inner side of the jaw.

c)

The largest salivary gland, located inferior and anterior to the ear.

d)

Digestive glands in the mouth that produce saliva

64.

Submucosa

a)

The second layer of the G.I. tract containing the blood vessels, connective tissue, lymph vessels, glands, and nerve plexuses.

b)

The innermost layer of the G.I. tract containing the smooth muscle, connective tissue, lymph nodes, and mucus secreting cells.

c)

The second portion of the small intestine where most absorption occurs, extending about 3 feet long.

d)

Cells of the liver responsible for production of bile, processing of vitamins, synthesis of blood proteins, detoxification of drugs and alcohol, comprising about 60% of liver tissue.

65.

Tongue

a)

A mass of skeletal muscle in the oral cavity covered with mucous membrane.

b)

A hard, bony, enamel coated structure found in the oral cavity used for chewing and biting.

c)

Part of the oral cavity that connects the nasal and oral cavities and provides passage for both air and food; commonly known as the throat.

d)

Fleshy, mobile organs formed by the orbicularis oris muscle, connective tissue, and skin

66.

Tooth

a)

A hard, bony, enamel coated structure found in the oral cavity used for chewing and biting.

b)

A mass of skeletal muscle in the oral cavity covered with mucous membrane.

c)

A fleshy extension that hangs at the back of the throat from the soft palate.

d)

The anterior portion of the roof of the oral cavity formed by the palatine process of the maxillae, palatine bones and the cover of mucous membranes.

67.

Transverse colon

a)

A portion of the colon that extends horizontally and crosses the upper abdominal cavity.

b)

A portion of the colon shaped like an “S” that leads to the rectum.

c)

Drains the bile within the gallbladder into the hepatopancreatic ampulla.

d)

Peptic ulcers located in the duodenum, the upper portion of the small intestine.

68.

Upper esophageal sphincter

a)

One of two muscular sphincters, this one is located at the beginning of the esophagus.

b)

A muscle between the pylorus and the small intestine which regulates the exit of gastric contents.

c)

A ring-like muscle that contracts in order to close an opening of the body

d)

A portion of the colon that descends inferiorly along the left abdominal wall to the pelvic region.

69.

Uvula

a)

A fleshy extension that hangs at the back of the throat from the soft palate.

b)

Finger-like projections that line the inner surface of the small intestine allowing for easy transport of nutrients from the intestines into the blood.

c)

A serous membrane that lines the outer surface of the abdominal organs

d)

A bean-shaped muscular organ that holds food and connects the esophagus with the small intestine.

70.

Vermiform appendix

a)

A worm-like projection attached to the inferior medial portion of the cecum.

b)

Finger-like projections that line the inner surface of the small intestine allowing for easy transport of nutrients from the intestines into the blood.

c)

One of two muscular sphincters, this one is located at the beginning of the esophagus.

d)

A muscle between the pylorus and the small intestine which regulates the exit of gastric contents.

71.

Villi

a)

Finger-like projections that line the inner surface of the small intestine allowing for easy transport of nutrients from the intestines into the blood.

b)

A fleshy extension that hangs at the back of the throat from the soft palate.

c)

A mass of skeletal muscle in the oral cavity covered with mucous membrane.

d)

Fleshy, mobile organs formed by the orbicularis oris muscle, connective tissue, and skin.

72.

Visceral peritoneum

a)

A serous membrane that lines the outer surface of the abdominal organs.

b)

The second layer of the G.I. tract containing the blood vessels, connective tissue, lymph vessels, glands, and nerve plexuses.

c)

A serous membrane that lines the wall of the abdominal cavity.

d)

Functional units of hepatic (liver) cells.