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Circulatory, Digestive, Respiratory, and Excretory Systems

Total questions: 98

Worksheet time: 49mins

Name
Class
Date
1.

The primary organs of the respiratory system are the

a)

lungs

b)

heart

c)

trachea

d)

Bronchioles

2.

Which is not a function of the respiratory system?

a)

It warms air entering the body.

b)

It exchanges oxygen and carbon dioxide.

c)

It pumps blood to the organs.

d)

It creates sound through the voice box.

3.

The respiratory system begins in the

a)

Diaphragm

b)

Lungs

c)

Nose and mouth

d)

Pharynx

4.

This passageway is part of both the respiratory and digestive system.

a)

Larynx

b)

Pharynx

c)

Nasal cavity

d)

Trachea

5.

The ____________ carries air to the left and right bronchi.

a)

Esophagus

b)

Bronchioles

c)

Alveoli

d)

Trachea

6.

The place in the lungs where the gases exchange is the ________.

a)

Alveoli

b)

Diaphragm

c)

Bronchus

d)

Nose and mouth

7.

The place in the lungs where the gases exchange is the ________.

a)

Alveoli

b)

Diaphragm

c)

Bronchus

d)

Nose and mouth

8.

The muscular organ that holds the vocal chords is the________.

a)

Epiglottis

b)

Pharynx

c)

Larynx

d)

Trachea

9.

The small flap of cartilage that closes when food passes is called the ________.

a)

Epiglottis

b)

Valve

c)

Trachea

d)

Bronchioles

10.

The circulatory system works most closely with which other system?

a)

Respiratory

b)

Excretory

c)

Digestive

d)

Nervous

11.

To pump and circulate blood is the work of which organ?

a)

lungs

b)

liver

c)

pancreas

d)

heart

12.

The heart contain four chambers. Which answer is correct.

a)

One atrium is in the upper part of the heart, and one is in the lower part of the heart.

b)

The two ventricles are in the upper part of the heart.

c)

There are 3 atriums in the upper part of the heart and 1 ventricle in the bottom.

d)

The atria are in the upper part of the heart and the 2 ventricles in the bottom.

13.

How many valves are within the heart?

a)

3

b)

4

c)

5

d)

6

14.
What organ is D pointing to?
a)
Ureters
b)
Bladder
c)
Urethra
d)
Kidney
15.
What organ is C pointing to?
a)
Ureters
b)
Bladder
c)
Kidney
d)
Urethra
16.
Which excretory organ filters the blood to remove excess water, urea, and cell wastes?
a)
Kidney
b)
Bladder
c)
Urethra
d)
Ureters
17.
A short tube where urine is released from the body is the _______.
a)
Ureter
b)
Kidney
c)
Bladder
d)
Urethra
18.
The ____ is a sac-like muscular organ that stores urine until it is ready to be released from the body
a)
Stomach
b)
Bladder
c)
Urethra
d)
Gallbladder
19.
What organ is B pointing to?
a)
Kidney
b)
Urethra
c)
Ureter
d)
Bladder
20.
What organ is 1 pointing to?
a)
Kidney
b)
Urethra
c)
Bladder
d)
Ureter
21.
Urea is best described as
a)
a tube you pee out of
b)
waste
c)
an organ
22.

Which organ releases digestive enzymes into the small intestine?

a)

pancreas

b)

small intestine

c)

esophagus

d)

salivary glands

23.

What organ is responsible for the majority of the absoption that occurs in the digestive system?

a)

large intestine

b)

small intestine

c)

stomach

d)

oral cavity

24.

The teeth and tongue of the oral cavity break foodstuff down physically. This is an example of

a)

mechanical digestion

b)

chemical digestion

c)

absorption

d)

peristalsis

25.

Which of the following is an accessory organ of the digestive system?

a)

stomach

b)

small intestine

c)

esophagus

d)

liver

26.

Which of the following answers correctly sequences the pathway food takes from the beginning to end?

a)

mouth, esophagus, stomach, small intestine, large intestine

b)

mouth, esophagus, stomach, large intestine, small intestine

c)

mouth, stomach, esophagus, small intestine, large intestine

d)

mouth, stomach, esophagus, large intestine, small intestine

27.

Which organ stores and releases bile?

a)

liver

b)

gallbladder

c)

pancreas

28.

Which organ makes bile?

a)

liver

b)

gallbladder

c)

pancreas

29.

Structure 16 is the

a)

pancreas

b)

salivary glands

c)

larynx

d)

esophagus

30.

Structure 4 is the

a)

pancreas

b)

liver

c)

stomach

d)

gall bladder

31.

Structure 17 is the

a)

pancreas

b)

liver

c)

stomach

d)

gall bladder

32.

Structure 5 is the

a)

pancreas

b)

appendix

c)

salivary gland

d)

gall bladder

33.

Structure 20 is the

a)

pancreas

b)

stomach

c)

large intestine

d)

small intestine

34.

What organ is responsible for the absorption of water and movement of waste?

a)

large intestine

b)

small intestine

c)

stomach

d)

oral cavity

35.

The mouth carries out

a)

mechanical digestion

b)

chemical digestion

c)

mechanical and chemical digestion

d)

No digestion

36.

What makes up around 55% of the blood?

a)

Plasma

b)

Red Blood Cells

c)

White Blood Cells

d)

Platelets

37.

What carries oxygen around the body?

a)

Plasma

b)

Red Blood Cells

c)

Platelets

d)

White Blood Cells

38.

Which of the following is NOT a type of blood vessel?

a)

Artery

b)

Capillary

c)

Vein

d)

Ventricle

39.

What is the function (job) of the platelets?

a)

To form clots (i.e. scabs) when you have cuts and grazes.

b)

To transport oxygen to the muscles

c)

To carry dissolved sugars.

d)

To produce antibodies

40.

What is the function (job) of the white blood cells?

a)

To transport oxygen around the body.

b)

To carry dissolved sugars.

c)

To clot and cover wounds like cuts and grazes.

d)

To release antibodies to help destroy infections.

41.

What is the function (job) of the plasma?

a)

To release antibodies to fight infections.

b)

To transport oxygen around the body.

c)

To carry dissolved nutrients and sugars.

d)

To transport oxygen around the body.

42.

What is the function (job) of the red blood cells?

a)

To transport oxygen around the body and to the muscles.

b)

To release antibodies to fight infections.

c)

To carry dissolved nutrients and sugars.

d)

To clot and form scabs if there is a wound on the body.

43.

Which blood vessels take blood TO the heart?

a)

Veins

b)

Arteries

c)

Capillaries

44.

Which blood vessels take blood AWAY from the heart?

a)

Veins

b)

Arteries

c)

Capillaries

45.

What type of blood do the arteries usually carry?

a)

Oxygenated Blood

b)

Deoxygenated Blood

46.

Which blood vessel has valves to prevent the back-flow of blood?

a)

Veins

b)

Arteries

c)

Capillaries

47.

What is blood made of?

a)

oxygen and plasma

b)

red blood cells and white blood cells

c)

plasma, red blood cells, white blood cells, and platelets.

d)

plasma and platelets

48.

Which of these is not a function of the digestive system?

a)

changing sugars into starches

b)

eliminating undigested wastes from the body

c)

breaking down food into molecules that the body can use

d)

absorbing food molecules into the blood

49.

What substance in the mouth contains an enzyme that begins chemical digestion?

a)

fiber

b)

mucus

c)

saliva

d)

pepsin

50.

What substance coats and protects the inside of the stomach? 

a)

saliva

b)

mucus

c)

bile

d)

pepsin

51.

The muscular structure of the stomach enables it to............................

a)

absorb a large amount of nutrients

b)

produce pepsin

c)

churn and mix food with digestive juice

d)

kill bacteria

52.

The presence of a harmful material in the stomach will most likely cause.......................

a)

the absorption of water in the stomach

b)

vomiting

c)

the absorption of food in the small intestine

d)

the stomach to stop churning

53.

In what part of the body does most chemical digestion take place?

a)

large intestine

b)

stomach

c)

small intestine

d)

liver

54.

In what part of the body are most nutrients absorbed?

a)

mouth

b)

stomach

c)

small intestine

d)

large intestine

55.

What organ produces bile?

a)

stomach

b)

small intestine

c)

pancreas

d)

liver

56.

Which of the following enable(s) the small intestine to absorb large amounts of nutrients?

a)

villi

b)

liver

c)

gall bladder

d)

pancreas

57.

Which process takes place in the large intestine?

a)

water is added to undigested food

b)

water is absorbed from undigested food

c)

digested nutrients are absorbed

d)

enzymes are added to complete chemical digestion

58.

Which of the following is a voluntary action?

a)

water absorption in the large intestine

b)

compaction of feces in the rectum

c)

swallowing your food

d)

bile production in the liver

59.

Digestion begins when food enters the ______________ and ends when waste leaves through the __________.

a)

throat, large intestine

b)

mouth, anus

c)

stomach, large intestine

d)

liver, pancreas

60.

The teeth and churning of the stomach to break down food into smaller pieces is____________

a)

chemical digestion

b)

mechanical digestion

c)

absorption

d)

none of these

61.

Enzymes breaking down starch and proteins are examples of _______________________

a)

chemical digestion

b)

mechanical digestion

c)

absorption

d)

none of these

62.

This muscle helps move food to the back of the mouth for swallowing.

a)

tongue

b)

teeth

c)

lips

d)

saliva glands

63.

This organ prevents food and/or drink from entering the trachea

a)

epiglottis

b)

sphincter

c)

tonsils

d)

heart

64.

Regular muscular contractions that move food through the digestive tract is

a)

chime

b)

peristalsis

c)

bolus

d)

pepsin

65.

A watery substance secreted by three pairs of glands around the mouth that helps moisten and soften food for swallowing is ______________

a)

lymph

b)

saliva

c)

blood

d)

urea

66.

Which of these is NOT a function of the cardiovascular system?

a)

attacking disease-causing microorganisms

b)

carrying oxygen, glucose, and other needed materials to cells

c)

carrying waste products away from cells

d)

controlling many body processes by means of chemicals

67.

Needed substances are carried to the body cells by...................................

a)

blood

b)

lymph

c)

platelets

d)

white blood cells

68.

The function of the atria is to.................

a)

pump blood to the lungs

b)

pump blood to the body

c)

receive blood that comes into the heart

d)

deliver oxygen to body tissues

69.

When the ventricles contract, blood is pumped...............

a)

out of the heart

b)

into the heart

c)

through the septum

d)

into veins

70.

The heart rate changes to correspond to the body’s.........................

a)

creation of waste products

b)

need for carbon dioxide

c)

ability to fight disease

d)

oxygen needs

71.

Blood vessels that carry blood away from the heart are called........................

a)

lymphatic vessels

b)

veins

c)

arteries

d)

capillaries

72.

Which chamber of the heart pumps oxygen-poor blood to the lungs?

a)

left atrium

b)

right atrium

c)

left ventricle

d)

right ventricle

73.

When blood flows into the right atrium from the body, it contains........................

a)

little oxygen and a lot of carbon dioxide

b)

a lot of oxygen and little carbon dioxide

c)

a lot of both oxygen and carbon dioxide

d)

little of either oxygen or carbon dioxide

74.

In which vessels are materials exchanged between the blood and the body cells?

a)

veins

b)

capillaries

c)

arteries

d)

lymphatic

75.

If your pulse rate increases, your heart is beating..........................

a)

with less pressure than before

b)

more forcefully than before

c)

faster than before

d)

slower than before

76.

Which component of blood is 90% water?

a)

plasma

b)

platelets

c)

red blood cells

d)

white blood cells

77.

Which component of blood carries oxygen to the body cells?

a)

plasma

b)

platelets

c)

red blood cells

d)

white blood cells

78.

The function of white blood cells is to.......................

a)

carry carbon dioxide

b)

increase blood pressure

c)

carry wastes away from the cells

d)

fight disease

79.

If a person’s blood lacked platelets, what process could not take place?

a)

carrying oxygen to cells

b)

carrying glucose to cells

c)

clotting of blood

d)

transfusing of blood

80.

What eventually happens to fluid that leaks from capillaries into the surrounding tissues?

a)

it becomes fatty tissue

b)

it replaces dead body cells

c)

it replaces dead red blood cells

d)

it enters the lymphatic system

81.

The role of the respiratory system is to bring what substance into the body?

a)

water

b)

oxygen

c)

carbon dioxide

d)

red blood cells

82.

What is the function of lymph nodes?

a)

to make new lymph

b)

to transfer oxygen

c)

to trap disease causing bacteria

d)

to return lymph to the blood stream

83.

What term do scientists use to describe the chemical process in which oxygen and glucose     

        react to release energy inside body cells?

a)

inhaling

b)

exhaling

c)

breathing

d)

respiration

84.

In which part of the respiratory system is the air first cleaned, moistened, and warmed?

a)

nose

b)

lungs

c)

pharynx

d)

bronchi

85.

Which part of the respiratory system is also part of the digestive system?

a)

nose

b)

pharynx

c)

bronchi

d)

trachea

86.

What is the name of the small flap of tissue that seals off the trachea during swallowing?

a)

pharynx

b)

larynx

c)

epiglottis

d)

alveolus

87.

Which parts of the respiratory system divide into smaller and smaller tubes in a pattern

        that resembles the branches of a tree?

a)

pharynx

b)

trachea

c)

bronchi

d)

epiglottis

88.

Where in the respiratory system does gas exchange take place?

a)

heart

b)

alveoli

c)

trachea

d)

pharynx

89.

Each alveolus is surrounded by a network of

a)

capillaries

b)

veins

c)

cillia

d)

arteries

90.

During gas exchange, which substance moves from the alveoli into the blood?

a)

carbon dioxide

b)

oxygen

c)

water

d)

nitrogen

91.

What happens to cause air to be exhaled from the lungs?

a)

the rib muscles contract

b)

the chest cavity expands

c)

the diaphragm moves upward

d)

the lungs expand

92.

What is the main function of the excretory system?

a)

to protect the nervous system

b)

to strengthen skeletal muscles

c)

to bring oxygen to body cells

d)

to collect and remove wastes from the body

93.

Which organ of the excretory system stores urine until the body is ready to eliminate it?

a)

urea

b)

ureters

c)

urinary bladder

d)

urethra

94.

Tiny filtering structures in the kidneys where urine is produced are called

a)

ureters

b)

nephron

c)

alveoli

d)

bronchi

95.

Under normal conditions, which of the following substances is found in urine?

a)

urea

b)

glucose

c)

protein

d)

blood cells

96.

What function do the kidneys perform?

a)

eliminate carbon dioxide

b)

supply oxygen to body cells

c)

eliminate urea and excess water

d)

play a role in gas exchange

97.

Which excretory organ eliminates water and some chemical wastes through perspiration?

a)

skin

b)

liver

c)

lungs

d)

kidneys

98.

In which excretory organ is urea produced?

a)

skin

b)

liver

c)

lungs

d)

kidneys

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