Understanding the Upper and Lower Digestive System Quiz

What are the three key functions of the digestive system?

• Digestion, absorption, and excretion

• Absorption, circulation, and excretion

• Ingestion, circulation, and respiration

• Ingestion, digestion, and respiration

Which layer of the GI tract is responsible for mechanical digestion?

• Serosa

• Muscularis

• Mucosa

• Submucosa

What is the primary function of the esophagus?

• Produce digestive enzymes

• Absorb nutrients

• Store food

• Transport food to the stomach

Which part of the digestive system is primarily involved in nutrient absorption?

• Pharynx

• Esophagus

• Stomach

• Small intestine

What is the role of the liver in digestion?

• Transport food to the stomach

• Absorb nutrients

• Store food

• Produce bile for fat digestion

Tags

NGSS.MS-LS1-7

Which organ is responsible for the initial mechanical digestion of food?

• Stomach

• Mouth

• Esophagus

• Small intestine

What is the function of the cardiac sphincter?

• Facilitate nutrient absorption

• Prevent air entry into the esophagus

• Regulate bile release

• Prevent regurgitation from the stomach

Which section of the small intestine is the primary site for chemical digestion?

• Duodenum

• Jejunum

• Cecum

• Ileum

What is the primary function of the large intestine?

• Store bile

• Produce digestive enzymes

• Absorb water and electrolytes

• Absorb nutrients

Which organ stores bile produced by the liver?

• Stomach

• Gallbladder

• Pancreas

• Small intestine