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Respiratory and Muscular System Quiz

Total questions: 35

Worksheet time: 18mins

Name
Class
Date
1.

What is the primary function of the respiratory system?

a)

Gas exchange

b)

Hormone regulation

c)

Nutrient absorption

d)

Waste filtration

2.

Which structure is part of the upper respiratory tract?

a)

Trachea

b)

Larynx

c)

Bronchi

d)

Alveoli

3.

What is the site of gas exchange in the respiratory system?

a)

Bronchi

b)

Alveoli

c)

Trachea

d)

Larynx

4.

Which of the following is NOT a primary function of the respiratory system?

a)

Ventilation

b)

Internal respiration

c)

Gas transport

d)

Nutrient storage

5.

What is the role of the diaphragm during inspiration?

a)

It compresses

b)

It expands

c)

It contracts

d)

It relaxes

6.

Which part of the pharynx is only for air passage?

a)

Oropharynx

b)

Laryngopharynx

c)

Hypopharynx

d)

Nasopharynx

7.

What type of cartilage is the external nose primarily made of?

a)

Fibrocartilage

b)

Hyaline cartilage

c)

Bone

d)

Elastic cartilage

8.

Which structure prevents food from entering the larynx during swallowing?

a)

Thyroid cartilage

b)

Epiglottis

c)

Trachea

d)

Vocal folds

9.

What is the main muscle involved in expiration?

a)

Diaphragm

b)

Pectoralis minor

c)

Internal intercostals

d)

External intercostals

10.

How many lobes does the left lung have?

a)

3

b)

1

c)

2

d)

4

11.

What is the primary function of the alveoli?

a)

Olfaction

b)

Air filtration

c)

Gas exchange

d)

Sound production

12.

Which of the following is a function of the nasal cavity?

a)

Oxygen transport

b)

Sound production

c)

Air passageway

d)

Gas exchange

13.

What is the role of the conchae in the nasal cavity?

a)

Regulate temperature

b)

Filter blood

c)

Produce mucus

d)

Increase surface area

14.

What is the primary function of the pleura membranes?

a)

Gas exchange

b)

Protect lungs

c)

Produce mucus

d)

Facilitate movement

15.

What is the main function of the respiratory membrane?

a)

Gas exchange

b)

Sound production

c)

Air filtration

d)

Olfaction

16.

Which of the following is a characteristic of smooth muscle?

a)

Voluntary

b)

Involuntary

c)

Striated

d)

Multinucleated

17.

What type of muscle is found in the heart?

a)

Striated muscle

b)

Skeletal muscle

c)

Smooth muscle

d)

Cardiac muscle

18.

What is the primary energy source for muscle contraction?

a)

Glucose

b)

ATP

c)

Creatine

d)

Fatty acids

19.

Which type of muscle fiber is known for endurance?

a)

Fast-twitch

b)

Type III

c)

Intermediate

d)

Slow-twitch

20.

What is the role of acetylcholine at the neuromuscular junction?

a)

Stimulate muscle contraction

b)

Control breathing

c)

Inhibit muscle contraction

d)

Regulate heart rate

21.

What happens during the power stroke of muscle contraction?

a)

Calcium is released

b)

Actin is pulled inward

c)

ATP is produced

d)

Myosin detaches from actin

22.

What is the function of the sarcoplasmic reticulum?

a)

Store calcium

b)

Produce ATP

c)

Facilitate gas exchange

d)

Generate action potentials

23.

Which of the following is a characteristic of cardiac muscle?

a)

Striated appearance

b)

Multiple nuclei

c)

No intercalated discs

d)

Voluntary control

24.

What is the primary role of the internal intercostals during expiration?

a)

Regulate blood pH

b)

Contract the thoracic cavity

c)

Expand the thoracic cavity

d)

Facilitate gas exchange

25.

What is the term for the maximum amount of air that can be exhaled after a maximum inhalation?

a)

Residual volume

b)

Vital capacity

c)

Inspiratory reserve volume

d)

Tidal volume

26.

Which of the following factors affects gas diffusion?

a)

Temperature

b)

Membrane thickness

c)

Color of the gas

d)

Humidity

27.

What is the primary function of the Hering-Breuer reflex?

a)

Facilitate gas exchange

b)

Regulate blood pressure

c)

Prevent lung overinflation

d)

Stimulate inspiration

28.

What is the main function of the external intercostals?

a)

Aid in inspiration

b)

Stabilize the rib cage

c)

Control heart rate

d)

Aid in expiration

29.

What is the primary role of the pectoralis minor during breathing?

a)

Aid in expiration

b)

Aid in inspiration

c)

Stabilize the diaphragm

d)

Control vocalization

30.

What is the term for the air that remains in the lungs after maximum exhalation?

a)

Tidal volume

b)

Vital capacity

c)

Residual volume

d)

Inspiratory reserve volume

31.

Which of the following is a characteristic of fast-twitch muscle fibers?

a)

Dark color

b)

Anaerobic respiration

c)

High myoglobin content

d)

Fatigue slowly

32.

What is the primary function of the vocal folds?

a)

Gas exchange

b)

Sound production

c)

Air filtration

d)

Olfaction

33.

What is the role of the nasal septum?

a)

Divides the nasal cavity

b)

Filters air

c)

Warms air

d)

Produces mucus

34.

What is the primary function of the bronchi?

a)

Olfaction

b)

Gas exchange

c)

Air passage

d)

Sound production

35.

What is the main purpose of the paranasal sinuses?

a)

Gas exchange

b)

Warm and humidify air

c)

Produce mucus

d)

Facilitate sound

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