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Worksheets

Circulatory System (Cardiovascular & Lymphatic System)

Total questions: 17

Worksheet time: 6mins

Name
Class
Date
1.

What is the main organ of the circulatory system?

a)

small intestine

b)

bone

c)

lungs

d)

heart

2.

Veins carry oxygen poor blood ____________ the heart.

a)

towards

b)

away from

3.

The job of the heart is to _____________.

a)

pumb blood around the body

b)

send food to the small intestine

c)

break down food

d)

give energy to the body

4.

How many types of blood vessels are in our body?

a)

1

b)

2

c)

3

d)

4

5.

____________ are the smallest blood vessels.

a)

arteries

b)

veins

c)

capillaries

6.

The circulatory system works with the _____________ system to provide our body with oxygen and remove carbon dioxide.

a)

respiratory

b)

digestive

c)

muscular

d)

skeletal

7.

The circulatory system works with the _____________ system to obtain energy from nutrients that we eat and deliver it to cells.

a)

respiratory

b)

digestive

c)

skeletal

d)

nervous

8.

Arteries carry oxygen rich blood _____________ the heart

a)

toward

b)

away from

9.

Which is the correct definition of the circulatory system?

a)

The system fights disease so the body stays healthy

b)

The system that circulates blood and oxygen through the body, consisting of the heart, blood and blood vessels

c)

Breaks down food into smaller pieces and absorbs those nutrients into the body

d)

provides shape and structure for the body

10.

The heart has ________ chambers

a)

1

b)

2

c)

3

d)

4

11.

Arteries, veins and capillaries are three types of ___________.

a)

heart valves

b)

blood vessels

c)

cells

d)

veins

12.

What is the Circulatory system also known as?

a)

the heart

b)

cardiovascular system

c)

nervous system

d)

aorta

13.

What do red blood cells do?

a)

carry oxygen from the lungs to the body cells & transport carbon dioxide from the cells back to the lungs

b)

keeps blood flowing in one direction to the heart & prevent blood from flowing backwards

c)

collects blood from the capillaries & drain it into veins

d)

bring nutrients to the cells & carries away waste materials

14.

What does blood do?

a)

carries water to cells

b)

carries oxygen to cells

c)

carries food to cells

d)

all of the above

15.

What is the heart?

a)

the core of a planet

b)

a small metal spike

c)

organ of soft nervous tissue

d)

muscular organ

16.

What does the circulatory system do?

a)

pumps blood through the whole body

b)

pumps blood to the brain

c)

pumps blood to the lungs

d)

pumps blood

17.

Carbon dioxide is considered a _______________.

a)

food

b)

waste product

c)

energy

d)

fun party favor