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Circulatory System Quiz

Total questions: 10

Worksheet time: 5mins

Name
Class
Date
1.

What is the function of veins in the circulatory system?

a)

Transport oxygen-rich blood away from the heart

b)

Transport deoxygenated blood back to the heart

c)

Pump blood throughout the body

d)

Deliver nutrients to tissues

2.

Which is the largest artery in the body?

a)

Superior Vena Cava

b)

Pulmonary Artery

c)

Aorta

d)

Carotid Artery

3.

What is the primary role of the heart in the circulatory system?

a)

To filter blood

b)

To circulate blood throughout the body

c)

To store blood

d)

To produce blood cells

4.

How many chambers does the heart have?

a)

Two

b)

Three

c)

Four

d)

Five

5.

What type of blood vessels are capillaries?

a)

Large and thick

b)

Small and thin

c)

Large and thin

d)

Small and thick

6.

What is the main external opening for the respiratory system?

a)

Mouth

b)

Nose

c)

Trachea

d)

Lungs

7.

What is the trachea also known as?

a)

Voice box

b)

Air sac

c)

Wind pipe

d)

Diaphragm

8.

What are the tiny sacs in the lungs that allow oxygen and carbon dioxide to move between the lungs and the bloodstream?

a)

Bronchi

b)

Alveoli

c)

Trachea

d)

Diaphragm

9.

Which muscle is the most important in the respiratory system and helps in expanding and contracting the lungs?

a)

Trachea

b)

Bronchi

c)

Diaphragm

d)

Alveoli

10.

What is the primary organ of the respiratory system that takes in oxygen and expels carbon dioxide?

a)

Nose

b)

Trachea

c)

Lungs

d)

Diaphragm