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Worksheets

Circulatory, Respiratory, and Digestive Systems

Total questions: 36

Worksheet time: 30mins

Name
Class
Date
1.
What is the main organ in the respiratory system?
a)
Kidney
b)
Heart
c)
Lungs
d)
Diaphragm
2.
Oxygen from the air enters the blood stream at what location?
a)
Cardiac Notch
b)
Pulmonary Vein
c)
Alveoli
d)
Paranasal Sinuses
3.
Which of the following does NOT make up part of the lungs?
a)
Alveoli
b)
Bronchioles
c)
Trachea
d)
Bronchi
4.
What is the main function of the respiratory system?
a)
to provide oxygen and remove carbon dioxide from the body
b)
to bring oxygen to the body
c)
to break down food and absorb nutrients
d)
to remove oxygen from the body and deliver carbon dioxide
5.
As you breathe this contracts and flattens to give your lungs room to fill up with air.
a)
larynx
b)
lung balloon
c)
diaphragm
d)
heart
6.

When the gasses are exchanged between the alveoli in the lungs and the capillaries, oxygen enters the blood stream. What happens with this oxygen?

a)

Oxygen in the blood is delivered to the lungs to be exhaled.

b)

Oxygen in the blood is delivered to the nose to be exhaled.

c)

Oxygen in the blood is delivered to the tissues and cells of the body to help make energy.

d)

Oxygen in the blood is a waste that needs to be removed from the boyd.

7.

Which of these is the correct path of air?

a)

Nose/mouth, bronchi, alveoli, trachea, bronchioles

b)

nose/mouth, alveoli, bronchi, bronchioles, trachea

c)

nose/mouth, bronchi, trachea, bronchi, alveoli

d)

nose/mouth, trachea, bronchi, bronchioles, alveoli

8.

What is function of the dome-shaped diaphragm muscle?

a)

This is where gas exchange happens.

b)

Air passes through the diaphragm on the way to the lungs.

c)

It attaches to the lungs and contracts and relaxes to help in breathing.

9.

These are the two two main branches from the trachea (one to each lung)

a)

bronchi

b)

alveoli

c)

capillaries

d)

bronchioles

10.

What part of the respiratory system is number 3?

a)

Bronchi

b)

Mouth

c)

Nose

d)

Trachea

11.

Compared to inhaled air, exhaled air has LESS (a)  

12.

The circulatory system revolves around which organ?

a)

heart

b)

lungs

c)

veins

d)

instestines

13.

Which type of blood vessel carries blood away from the heart?

a)

arteries

b)

ventricles

c)

aorta

d)

veins

14.

Which of the following does the circulatory not consist of?

a)

Heart

b)

Lungs

c)

Blood

d)

Blood vessles

15.

Running is an activity that causes the cells in the muscular system to use oxygen at a faster rate. Which system responds by delivering more oxygen to these cells?

a)

digestive

b)

nervous

c)

circulatory

d)

endocrine

16.

What is the main function of the circulatory system?

a)

secrete enzymes

b)

digest proteins

c)

produce hormones

d)

transport materials

17.

State the general relationship between exercise and heart rate in humans.

a)

If a person exercises, then their heart rate will not change

b)

If a person exercises, then their heart rate will increase

c)

If a person exercises, then their heart rate will decrease

d)

Person exercising and heart rate are not related

18.

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

a)

white blood cell

b)

red blood cell

c)

respiratory system

d)

lungs

19.

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

a)

heart

b)

arteries

c)

veins

d)

capillaries

20.
The heart has ___ chambers.
a)
1
b)
2
c)
3
d)
4
21.
Identify
a)
Left atrium
b)
Right atrium
c)
Left ventricle
d)
Right ventricle
22.

This chamber of the heart pumps the blood from the heart to the lungs through the pulmonary artery

a)

Right Atrium

b)

Left Atrium

c)

Right Ventricle

d)

Left Ventricle

23.

The first stop of the blood in the heart is the...

a)

Left Ventricle

b)

Left Atrium

c)

Right Atrium

d)

Right Ventricle

24.

__________are small, colourless cell fragments in our blood that form clots and stop or prevent bleeding.

a)

Plasma

b)

Red blood cells

c)

platelets

d)

capillaries

25.

What carry blood from the body cells back to the heart. This blood contains waste materials.

a)

Veins

b)

Arteries

c)

Capillaries

d)

Vines

26.

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

27.
The chewing and grinding of food into smaller pieces is an example of...
a)
Mechanical Digestion
b)
Chemical Digestion
28.
Gastric juices in the stomach digest food into a thick liquid.  This is...
a)
Mechanical digestion
b)
Chemical digestion
29.
The muscular tube that moves food from the mouth to the stomach?
a)
esophagus
b)
small intestine
c)
stomach
d)
mouth
30.
The _________________ squeezes water out of food and absorbs water into the bloodstream.
a)
esophagus
b)
stomach
c)
small intestine
d)
large intestine
31.

Where does the process of digestion begin?

a)

mouth

b)

esophagus

c)

stomach

d)

small intestine

32.

Where does the absorption of nutrients from food take place?

a)

stomach

b)

liver

c)

small intestine

d)

large intestine

33.

What chemically breaks down food into smaller molecules?

a)

teeth

b)

muscles of the stomach

c)

enzymes

34.

Select the correct order of passage through the GI Tract

a)

Mouth --> stomach --> esophagus --> large intestine --> small intestine

b)

Mouth --> esophagus--> stomach --> large intestine --> small intestine

c)

Mouth --> esophagus --> stomach --> small intestine --> large intestine

d)

Stomach --> Small Intestine --> Large Intestine -->

35.

Calories are

a)

found in the earth's crust

b)

one of the essentail nutrients our bodies need

c)

a measure of heat energy in food

36.

This system provides your body with nutrients.

a)

excretory system

b)

immune system

c)

circulatory system

d)

digestive system