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Worksheets

Respiratory - Circulatory - Digestive Systems

Total questions: 119

Worksheet time: 4hrs 28mins

Name
Class
Date
1.
The system of the body that brings oxygen into the body and releases carbon dioxide.
a)
respiratory​ ​system​
b)
skeletal system
c)
muscular system
d)
circulatory system
2.
Organs of the respiratory system that bring oxygen-rich air into​ ​the body and send oxygen-poor air out of the body.
a)
heart
b)
muscles
c)
lungs
d)
bones
3.
The process of taking in oxygen and releasing carbon dioxide from the body.
a)
transpiration 
b)
respiration 
c)
digestion
d)
relaxation
4.
The tube in the body through which air moves as it travels to and from the lungs;the windpipe.
a)
heart
b)
bone
c)
blood vessel
d)
trachea 
5.
Tiny air sacs in the lungs that are the site of gas exchange between the lungs and blood.
a)
alveoli​
b)
relax
c)
diaphragm​
d)
nose
6.
A wide muscle that separates the chest cavity from the abdominal cavity and aids in the inflation of the lungs.
a)
diaphragm​
b)
heart
c)
nose
d)
trachea
7.
The beginning point of the respiratory system where air is taken into the body.
a)
lung
b)
diaphragm​
c)
nose​
d)
trachea​
8.
Inhale!!!!
Your lungs are ___________  air
a)
taking in
b)
letting out
9.
EXHALE!!!
My lungs are __________________ air. 
a)
taking in
b)
letting out
10.
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
11.
When you breathe, your lungs take in ___ and remove ___. 
a)
air/oxygen
b)
oxygen/carbon dioxide 
c)
carbon dioxide/waste 
d)
waste/air 
12.

The heart is part of the respiratory system.

a)

True

b)

False

13.

What do we take in when we inhale?

a)

carbon dioxide

b)

oxygen

c)

lungs

14.

What do we let out when we exhale?

a)

oxygen

b)

Carbon dioxide

c)

lungs

15.
Inhale!!!!
Your lungs are ___________  air
a)
taking in
b)
letting out
16.
EXHALE!!!
My lungs are __________________ air. 
a)
taking in
b)
letting out
17.
The two main branches from the trachea (one to each lung)
a)
bronchi
b)
alveoli
c)
capillaries
d)
bronchioles
18.
Name the organ label # 6. 
a)
alveoli 
b)
bronchi 
c)
trachea 
d)
lungs 
19.

The "windpipe" is also called the...

a)

trachea

b)

bronchi

c)

bronchioles

d)

alveoli

20.

Tiny blood vessels surrounding the alveoli

a)

capillaries

b)

alveoli

c)

cilia

d)

larynx

21.

Also called the windpipe

a)

Larynx

b)

pharynx

c)

trachea

d)

alveoli

22.

Tiny air sacs in the lungs

a)

alveoli

b)

capillaries

c)

trachea

d)

cilia

23.

Also called the throat

a)

larynx

b)

pharynx

c)

trachea

d)

bronchi

24.

Where does the exchange of oxygen and carbon dioxide take place?

a)

bronchi

b)

pharynx

c)

trachea

d)

alveoli

25.

Which part of the body controls breathing?

a)

lungs

b)

brain

c)

trachea

d)

cilia

26.
What is the main bone structure that protects the lungs
a)
Vertebrae
b)
Rib cage
c)
Skull
d)
Pelvis
27.
What is the main organ in the circulatory system?
a)
vein
b)
lung
c)
heart
d)
aorta 
28.
Carry blood away from heart; mostly oxygen-rich
a)
Arteries
b)
Veins
c)
Capillaries
29.
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.
30.
What is the gas that we inhale?
a)
Oxygen
b)
Gasoline
c)
Carbon Dioxide
d)
Methane
31.
What is the function of this  system?
a)
Take in oxygen and release carbon dioxide
b)
Break apart nutrients into usable pieces of energy
c)
Transport nutrients and oxygen to the  body
d)
Provide movement for the body
32.
Which system with the heart, arteries and veins apart of?
a)
Cardiovascular 
b)
Circulatory
c)
Respiratory
d)
Immune
33.

What type of blood vessel carries blood towards the heart?

a)

Vein

b)

Artery

c)

Capillary

d)

Tube

34.

What part of the respiratory system is number 2?

a)

Bronchi

b)

Mouth

c)

Nose

d)

Trachea

35.

What part of the respiratory system is number 1?

a)

Bronchi

b)

Mouth

c)

Nose

d)

Trachea

36.

What part of the respiratory system is number 4?

a)

Bronchi

b)

Mouth

c)

Nose

d)

Trachea

37.

What part of the respiratory system is number 3?

a)

Bronchi

b)

Mouth

c)

Nose

d)

Trachea

38.

What part of the respiratory system is number 5?

a)

Trachea

b)

Alveoli

c)

Lungs

d)

Nose

39.

What is the main organ of the circulatory system?

a)

small intestine

b)

bone

c)

lungs

d)

heart

40.
The circulatory system works with the ___________ system to provide our body with oxygen.
a)
respiratory
b)
digestive
c)
muscular
d)
skeletal
41.
The main function of the circulatory system is 
a)
To give the body structure and support
b)
Excrete waste
c)
transport blood, nutrients, and gases throughout the body
d)
to transport messages from the body to the brain
42.

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

43.
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
44.
The two larger types of blood vessels are:
a)
heart and lungs
b)
arteries and heart
c)
arteries and veins
d)
veins and heart
45.
What is the main bone structure that protects the lungs
a)
Vertebrae
b)
Rib cage
c)
Skull
d)
Pelvis
46.
What are the main organs of the respiratory system?
a)
muscles
b)
lungs
c)
nose and mouth
d)
bronchi
47.
Carry blood away from heart; mostly oxygen-rich
a)
Arteries
b)
Veins
c)
Capillaries
48.
What is function of the dome-shaped diaphragm?
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 to help in breathing.
d)
It is under the lungs and keeps them from falling down to your stomach.
49.

When we breath in the diaphragm...

a)

Contracts

b)

Relaxes

50.

When we breathe out the diaphragm...

a)

Contracts

b)

Relaxes

51.
What is A?
a)
nose
b)
mouth
c)
larynx
d)
pharynx
52.
What is B?
a)
nose
b)
mouth
c)
pharynx
d)
larynx
53.
What is D?
a)
trachea
b)
alveoli
c)
lungs
d)
phayrnx
54.
What is S?
a)
right bronchus
b)
left bronchus
c)
lungs
d)
alveoli
55.
What is K?
a)
right bronchus
b)
left bronchus
c)
lung
d)
diaphragm
56.
What is P?
a)
right bronchus
b)
left bronchus
57.
What is F?
a)
right bronchus
b)
left bronchus
58.
What is J?
a)
right bronchus
b)
left bronchus
c)
bronchioles
59.
How many types of blood vessels are in our body?
a)
1
b)
2
c)
3
d)
4
60.

Arteries carry oxygen rich blood away from the heart.

a)

True

b)

False

61.

Veins carry oxygen poor blood back to the heart.

a)

False

b)

True

62.

The heart is about the size and shape of your . . .

a)

head

b)

fist

c)

hand

d)

foot

63.

How does the heart work?

a)

It pumps blood first to the lungs, back to the heart and then around the rest of the body.

b)

It pumps blood first to the rest of the body, back to the lungs and then to the heart.

c)

It pumps blood around the rest of the body, back to the heart and then to the lungs,

64.
______________ are the smallest blood vessels.
a)
Arteries
b)
Veins
c)
Capillaries
65.
______________ are the second largest blood vessel. 
a)
Arteries
b)
Veins
c)
Capillaries
66.
Which of the following is a synonym for the circulatory system?
a)
respiratory system
b)
digestive system
c)
nervous system
d)
cardiovascular system
67.
Which is responsible for providing oxygen to cells?
a)
respiratory system
b)
circulatory system
c)
muscular system
d)
nervous system
68.
In which system of the human body does the heart belong?
a)
Nervous
b)
Skeletal
c)
Cardiovascular
d)
Digestive
69.
Which system permits blood to circulate and transports nutrients around the body?
a)
Nervous
b)
Respiratory
c)
Circulatory
d)
Digestive
70.
This type of vessel carries blood TO the heart:
a)
vein
b)
nerve
c)
muscle
d)
artery
71.
When oxygen-rich blood is carried AWAY from the heart, it travels through an...
a)
artery
b)
neuron
c)
vein
d)
straw
72.
The smallest type of blood vessel is the:
a)
nerve
b)
vein
c)
capillary
d)
artery
73.
Veins have special ________________ to stop blood from flowing backward.
a)
gravity
b)
valves
c)
arteries
d)
ventricles
74.
The circulatory system works with the ___________ system to provide our body with oxygen.
a)
respiratory
b)
digestive
c)
muscular
d)
skeletal
75.
The circulatory system works with the __________ system to obtain energy from nutrients that we eat. 
a)
respiratory 
b)
digestive
c)
skeletal
d)
nervous
76.
Your heart is an example of which type of muscle?
a)
a big one
b)
voluntary
c)
involuntary
d)
bicep
77.

where is aorta

a)

1

b)

2

c)

10

d)

4

78.
The heart has how many chambers?
a)
6
b)
5
c)
4
d)
3
79.
What is  1
a)
left ventricle
b)
right ventricle
c)
right atrium
d)
left atrium
80.
What is 2
a)
right ventricle
b)
left ventricle
c)
right atrium
d)
left atrium
81.
What is 3
a)
left ventricle
b)
right ventricle
c)
left atrium
d)
right atrium
82.
What is 4
a)
left ventricle
b)
right ventricle
c)
left atrium
d)
right atrium
83.
a)
Left atrium
b)
Right atrium
c)
Left ventricle
d)
Right ventricle
84.
a)
Left atrium
b)
Right atrium
c)
Left ventricle
d)
Right ventricle
85.
Name this part.
a)
Left ventricle
b)
Pulmonary artery
c)
Right atrium
d)
Pulmonary veins
86.
a)

Pulmonary veins

b)

Pulmonary artery

c)

Aorta

d)

Superior Vena cava

87.
a)
Left atrium
b)
Right atrium
c)
Left ventricle
d)
Right ventricle
88.
Identify
a)
Pulmonary veins
b)
Pulmonary artery
c)
Aorta
d)
Vena cava
89.

The main artery in the heart is the

a)

aorta

b)

vena cava

c)

pulmonary artery

d)

pulmonary flow

90.

The ______________pump blood into the body.

a)

septum

b)

atria

c)

ventricles

91.

The digestive process starts in the:

a)

Stomach

b)

Esophagus

c)

Mouth

d)

Bathroom

92.

The liver’s role is to:

a)

Mash up food

b)

Turn water into food

c)

Help the stomach

d)

makes another juice called bile

93.

When they reach the stomach, mashed-up food particles mix with:

a)

Guava juice

b)

Gastric juices and stomach acid

c)

Mucus

d)

Bile

94.

Where does the blood pick up nutrients from food?

a)

small intestine

b)

stomach

c)

large intestine

d)

esophagus

95.

When you swallow, the food leaves your mouth and goes to?

a)

stomach

b)

Esophagus

c)

small intestine

d)

liver

96.

What is the purpose of the digestive system?

a)

to help the body breathe

b)

to pump blood throughout the body

c)

change food into a form that can be used by the cells

d)

to help your body move

97.

How long does it take your body to digest food from a meal?

a)

a few minutes

b)

a few hours

c)

a day

d)

many days

98.

What organ helps to remove waste your body doesn't use?

a)

mouth

b)

stomach

c)

small intestine

d)

large intestine

99.

What are the main organs of the digestive system?

a)

mouth, esophagus, gall bladder, pancreas

b)

mouth, esophagus, stomach, liver, gall bladder, pancreas, small intestine, large intestine

c)

heart, blood vessels, nerves, brain

d)

bones, muscles, brain, stomach, skin

100.

How long is an adult’s small intestine?

a)

22 feet

b)

30 inches

c)

30 miles

d)

17 feet

101.

The liver’s role is to:

a)

Mash up food

b)

Turn water into food

c)

Help the stomach

d)

Remove harmful substances from the blood

102.

Your food can spend up to this long in the small intestine:

a)

4 minutes

b)

4 months

c)

4 seconds

d)

4 hours

103.

Which organs help with the absorption of nutrients?

a)

Pancreas, liver, and gall bladder

b)

Liver, heart, and spleen

c)

Gall bladder, kidneys, and appendix

d)

Kidneys, liver, and bladder

104.

The large intestine measures about:

a)

1 foot long

b)

10 feet long

c)

5 feet long

d)

100 feet long

105.

Why is the digestive system so important for the human body?

a)

It circulates blood to all of the organs.

b)

It moves oxygen through the lungs and into the blood.

c)

It carries away waste products from the place they are created.

d)

It breaks food into nutrients and moves the nutrients into the blood.

106.

What role does the circulatory system provide to the digestive system?

a)

It releases waste into the blood.

b)

It transports nutrients to cells.

c)

It moves food through the intestines.

d)

It transports food particles to the muscles.

107.
Which part of the digestive system is number 1?
a)
esophagus
b)
mouth
c)
small intestine
d)
liver
108.
Which part of the digestive system is number 2?
a)
esophagus
b)
stomach
c)
small intestine
d)
liver
109.
Which part of the digestive system is number 3?
a)
esophagus
b)
stomach
c)
small intestine
d)
liver
110.
Which part of the digestive system is number 4?
a)
esophagus
b)
large intestine
c)
small intestine
d)
liver
111.
Which part of the digestive system is number 6?
a)
esophagus
b)
large intestine
c)
small intestine
d)
liver
112.
Nutrients from digested food are absorbed in which digestive organ?
a)
Small Intestine
b)
Stomach
c)
Large Intestine
d)
Gallbladder
113.
Enzymes (chemicals) in your saliva help break down food while chewing.  This is...
a)
Mechanical digestion
b)
Chemical digestion
114.
Number 3 is pointing to the...
a)
Small intestine
b)
Rectum
c)
Large intestine
d)
Stomach
115.

The name of the ball of food passed through esophagus to the stomach

a)

bolus

b)

epiglottis

c)

wad

d)

seafood

116.

Waste foods are separated from solids and liquids in the __________________.

a)

small intestine

b)

large intestine

c)

liver

d)

stomach

117.

What does your tongue do?

a)

It produces insulin.

b)

It produces bile.

c)

nothing

d)

It moves food around your mouth.

118.
Which example best shows structures that make up the digestive system in the human body?  
a)
A) A heart, blood, vessels
b)
 B) nose, trachea, lungs
c)
C) brain, spinal cord, nerves
d)
D) esophagus, stomach, intestines 
119.
Which is NOT a function of the Digestive System?
a)
To rid the body of solid waste
b)
Absorb nutrients for energy & growth
c)
Break down nutrients from food
d)
Pump blood around the body