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JC_Respiratory System

Total questions: 20

Worksheet time: 32mins

Name
Class
Date
1.

When we breathe in...................enters our lungs and passes into the blood.

a)

oxygen

b)

carbon dioxide

2.

The windpipe is also called

a)

trachea

b)

alveoli

3.

The only externally visible part of the respiratory system

a)

Eyes

b)

Nose

c)

Pharynx

d)

Larynx

4.

A small flap of tissue that covers the trachea is called the

a)

bronchi

b)

larynx

c)

pharynx

d)

epiglottis

5.

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.

6.

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

a)

bronchi

b)

alveoli

c)

capillaries

d)

bronchioles

7.
The air sacs that are covered with capillaries where gas exchange takes place
a)
bronchi
b)
lungs
c)
oxygen
d)
alveoli
8.

What type of cells carry oxygen in the blood?

a)

red blood cells

b)

white blood cells

9.

What is oxygen needed for?

a)

energy releasing chemical reactions

b)

to make glucose

c)

to take in sunlight

d)

none of the above

10.
Inhale!!!!
Your lungs are ___________  air
a)
taking in
b)
letting out
11.
a flap of tissue that closes when we eat so food doesn't not go down the trachea
a)
larynx
b)
pharynx
c)
trachea
d)
epiglottis
12.
Given the following structures:
1. larynx
2. nasal cavity
3. pharynx
4. trachea
Which of the following is the correct order that air would flow during inhalation. 
a)
1,2,3,4
b)
2,3,1,4
c)
2,1,3,4
d)
4,2,3,1 
13.
Tiny tubes that branch off of bronchi
a)
capillaries
b)
alveoli
c)
bronchioles
d)
pluera
14.

When we breathe in, our chest moves

a)

Upward and outward

b)

Inward and downward

c)

Upward and downward

d)

Inward and outward

15.

When we breathe out, our diaphragm becomes

a)

relaxed and dome shaped

b)

contracted and flattened

c)

relaxed and flattened

d)

dome shaped and contracted

16.
We can test the presence of carbon dioxide in exhaled air by bubbling it into .................... . 
a)
limewater
b)
lime juice
c)
lime
d)
water
17.

The most common cause of emphysema is?

a)

Allergies

b)

Cigarette smoking

c)

Prolonged steroid use

d)

Anxiety

18.
Thick, sticky, dark fluid when tobacco burns is called
a)
Nicotine
b)
Ammonia
c)
Tar
d)
Cilia
19.

The addictive drug found in tobacco products

a)

Tar

b)

Carbon monoxide

c)

Nicotine

d)

Carcinogen

20.
Tiny, hair-like projections that move together in sweeping motion
a)
ribcage
b)
trachea
c)
pharynx
d)
cilia