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Circulatory System

Total questions: 45

Worksheet time: 25mins

Name
Class
Date
1.

What is the main organ of the circulatory system?

a)

small intestine

b)

bone

c)

lungs

d)

heart

2.
How many types of blood vessels are in our body?
a)
1
b)
2
c)
3
d)
4
3.

Veins carry oxygen poor blood back to the heart.

a)

False

b)

True

4.

Arteries carry oxygen rich blood away from the heart.

a)

True

b)

False

5.

The job of the heart is to . . .

a)

pump blood around the body.

b)

send food to the small intestines.

c)

break down food.

d)

give energy to the body.

6.
______________ are the smallest blood vessels.
a)
Arteries
b)
Veins
c)
Capillaries
7.
______________ are the second largest blood vessel. 
a)
Arteries
b)
Veins
c)
Capillaries
8.
The circulatory system works with the ___________ system to provide our body with oxygen.
a)
respiratory
b)
digestive
c)
muscular
d)
skeletal
9.
The heart has ___ chambers.
a)
1
b)
2
c)
3
d)
4
10.
What does Deoxygenated mean?
a)
Oxygen-rich
b)
Blood flow
c)
Oxygen-poor
d)
Water Flow
11.
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.
12.
What function does the heart do?
a)
Protects organs and produces red blood cells.
b)
Generates heat.
c)
Breaks down food into nutrients.
d)
The heart is a pump, which moves the blood. The arteries and veins are the pipes where the blood flows.
13.
arteries, veins, and capillaries are three types of __________
a)
heart valves
b)
blood vessels
c)
cells
d)
veins
14.
What is the Circulatory System also known as?
a)
The heart
b)
Cardiovascular System
c)
Nervous System
d)
Aorta
15.
What do Red-Blood cells do?
a)
Carry oxygen from the lungs to the body cells and  transport carbon dioxide from the cells back to the lungs
b)
keeps blood flowing in one direction to the heart and prevent blood from flowing backwards
c)
Collects  blood from the capillaries and drain it into the veins
d)
Bring nutriients to the cells and carries away waste materials.
16.
What does blood do?
a)
Carries Water to cells
b)
Carries Oxygen to cells
c)
Carries Food to cells
d)
All of the above 
17.
What is the heart ? 
a)
meaty organ 
b)
a small metal spike with a broadened flat head,
c)
organ of soft nervous tissue 
d)
muscular organ
18.
Carbon dioxide is considered a _________________
a)
food
b)
waste
c)
energy
d)
fun party favor
19.

Delivers oxygen to your body cells. Made in bone marrow.

a)

white blood cell

b)

red blood cell

c)

respiratory system

d)

lungs

20.

Fights disease and infection. Made by the lymphatic system.

a)

white blood cells

b)

red blood cells

c)

circulatory system

d)

blood

21.

Small blood vessels that diffuse oxygen, carbon dioxide, and nutrients.

a)

heart

b)

arteries

c)

veins

d)

capillaries

22.

Cholesterol and plaque builds up on vessel walls and causes heart attack and stroke.

a)

leukemia

b)

heart disease

c)

hemophilia

d)

sickle-cell anemia

23.

The 3 main functions of the Circulatory System

a)

break down food, remove waste, make blood cells

b)

react to stimuli, grow, adapt

c)

deliver materials, remove waste, and fight infection

24.

The (a)   is the largest artery in the body.

25.

Your heart rate, or pulse, is the number of times your heart beats per (a)   .

26.

(a)   is the liquid part of blood.

27.

(a)   help form clots to stop bleeding.

28.

Blood vessels that carry blood to the heart.

a)

Veins

b)

Arteries

c)

Capillaries

29.

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

a)

Ventricles

b)

Atria

30.

(a)   are the tiniest blood vessels.

31.

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

a)

Ventricles

b)

Atria

32.

These blood cells carry oxygen from the lungs to all parts of the body.

a)

White Blood Cells

b)

Red Blood Cells

c)

Platelets

d)

Plasma

33.

About how many times does your heart beat per minute?

a)

20-60

b)

40-80

c)

60-100

d)

80-120

34.

This occurs when blood flow to part of the heart is blocked.

a)

Heart attack

b)

Stroke

c)

Arrhythmia

35.

The blood obtains the oxygen from which organ?

a)

Brain

b)

Lungs

c)

Heart

d)

Stomach

36.

In the body, the superior vena cava receives blood to the heart from

a)

Head

b)

Neck

c)

Upper Limbs

d)

Chest

37.

In the body, the INFERIOR vena cava receives blood to the heart from

a)

Torso

b)

Organs

c)

Lower Limbs

d)

Head

38.

The purpose of the valves is to keep the blood flowing in the right direction

a)

True

b)

False

39.

After the blood leaves the right atrium, it goes to the...

a)

Right Ventricle

b)

Right Atrium

c)

Left Ventricle

d)

Left Atrium

40.

After the right ventricle, the blood goes through the pulmonary artery to...

a)

Lungs

b)

Heart

41.

In the lungs, the blood gets rid of...

a)

Oxygen

b)

Carbon Dioxide

42.

In the lungs, the blood gets...

a)

Oxygen

b)

Carbon Dioxide

43.

After the blood gets oxygen from the lungs, it goes through the pulmonary veins to the heart's....

a)

Right Atrium

b)

Left Ventricle

c)

Right Ventricle

d)

Left Atrium

44.

After the left atrium, the blood goes through the mitral valve to the...

a)

Left Atrium

b)

Left Ventricle

c)

Right Atrium

d)

Right Ventrical

45.

Lastly, the oxygenated blood goes through the ___________ to the rest of the body.

a)

Aorta

b)

Vena Cava

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