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Circulatory system

Total questions: 25

Worksheet time: 19mins

Name
Class
Date
1.

What is the main organ of the circulatory system?

a)

small intestine

b)

bone

c)

lungs

d)

heart

2.
The heart has ___ chambers.
a)
1
b)
2
c)
3
d)
4
3.
What does Deoxygenated mean?
a)
Oxygen-rich
b)
Blood flow
c)
Oxygen-poor
d)
Water Flow
4.
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 vessels,and blood.
c)
Breaks down food into smaller pieces and absorbs those nutrients into the body.
d)
Provides shape and structure for the body.
5.
Carbon dioxide is considered a _________________
a)
food
b)
waste
c)
energy
d)
fun party favor
6.

The upper part of the heart is made up of two chambers called what?

a)

Ventricles

b)

Atria

7.

The bottom part of the heart is divided into two chambers called what?

a)

Ventricles

b)

Atria

8.

Type of circulation that refers to blood flow from the heart to the lungs and back to the heart again?

a)

Systemic circulation

b)

Renal circulation

c)

Portal circulation

d)

Pulmonary circulation

9.

Type of circulation that refers to the blood flowing through the entire body?

a)

Systemic circulation

b)

Renal circulation

c)

Portal circulation

d)

Pulmonary circulation

10.

Name part N.

a)

Right atrium

b)

left atrium

c)

right ventricle

d)

left ventricle

11.

Name part A.

a)

Pulmonary artery

b)

Pulmonary vein

c)

Superior vena cava

d)

Aorta

12.

The left side of heart comprises of deoxygenated blood

a)

True

b)

False

13.

The valves between left auricle and left ventricle is called

a)

Tricuspid valves

b)

Septum

c)

Bicuspid valves

14.
This blood vessel has valves to prevent the back flow of blood. 
a)
veins
b)
capillaries
c)
arteries
15.

How many chambers does the heart consist of?

a)

2

b)

3

c)

4

d)

6

16.
Identify
a)
Left atrium
b)
Right atrium
c)
Left ventricle
d)
Right ventricle
17.
Which is NOT a function of the circulatory system?
a)
deliver O2 and nutrients to cells
b)
remove CO2 and wastes from cells
c)
break down carbohydrates into glucose
d)
transport other materials through body
18.
Structure(s) that keep the blood flowing in one direction.
a)
Valve(s)
b)
Septum(s)
c)
Neuron(s)
d)
Bronchiole(s)
19.

A fish's heart has ___ chambers.

a)

1

b)

2

c)

3

d)

4

20.

Which of the vertebrates have the blood flow through the heart twice?

a)

reptiles

b)

birds

c)

amphibians

d)

fish

21.

What is the purpose of blood circulatory system in vertebrates?

a)

digest nutrients

b)

transmit sensations

c)

transport essential substances and waste products

d)

produce carbohydrates

22.

How many chambers in the amphibians' heart?

a)

one

b)

two

c)

three

d)

four

23.

Oxygenated blood and deoxygenated blood of amphibians are mixed together in the heart.

a)

True

b)

False

24.

In fish, the blood that leaves the heart will travel to which part of the body?

a)

brain

b)

dorsal fin

c)

stomach

d)

gills

25.

How many chambers in the heart of an amphibian?

a)

1

b)

2

c)

3

d)

4