RESPIRATORY SYSTEM

Question 1

What is the primary function of the respiratory system?

Answer 1

To facilitate gas exchange, primarily oxygen and carbon dioxide.

Question 2

Which structures are part of the upper respiratory tract?

Answer 2

• Nose
• Nasal cavity
• Sinuses
• Pharynx
• Larynx

Question 3

What are the key components of the lower respiratory tract?

Answer 3

• Trachea
• Bronchi
• Bronchioles
• Alveoli

Question 4

Fill in the blank: The _______ is the main organ of respiration.

Answer 4

[lungs]

Question 5

What is the role of alveoli in the respiratory system?

Answer 5

To facilitate the exchange of oxygen and carbon dioxide.

Question 6

True or False: The diaphragm is a muscle that helps in breathing.

Answer 6

True

Question 7

What is the process of breathing called?

Answer 7

Ventilation

Question 8

What are the two phases of the breathing process?

Answer 8

• Inhalation
• Exhalation

Question 9

Fill in the blank: The _______ connects the throat to the lungs.

Answer 9

[trachea]

Question 10

Which gas is primarily inhaled during respiration?

Answer 10

Oxygen

Question 11

Which gas is primarily exhaled during respiration?

Answer 11

Carbon dioxide

Question 12

What is the function of the nasal cavity?

Answer 12

To filter, warm, and humidify air.

Question 13

Fill in the blank: The _______ helps to prevent food from entering the trachea.

Answer 13

[epiglottis]

Question 14

What is the significance of surfactant in the lungs?

Answer 14

To reduce surface tension in the alveoli, preventing collapse.

Question 15

True or False: The respiratory system is involved in vocalization.

Answer 15

True

Question 16

What is the term for the tiny air sacs in the lungs?

Answer 16

Alveoli

Question 17

List the main functions of the respiratory system.

Answer 17

• Gas exchange
• Regulation of blood pH
• Protection against pathogens
• Vocalization

Question 18

Fill in the blank: The _______ is a muscular structure that plays a crucial role in breathing.

Answer 18

[diaphragm]

Question 19

What is the role of cilia in the respiratory system?

Answer 19

To trap and move particles out of the airways.

Question 20

Which part of the brain controls the respiratory rate?

Answer 20

Medulla oblongata

Question 21

What happens during inhalation?

Answer 21

The diaphragm contracts and chest volume increases.

Question 22

What happens during exhalation?

Answer 22

The diaphragm relaxes and chest volume decreases.

Question 23

Fill in the blank: The _______ is the area where gas exchange occurs in the lungs.

Answer 23

[alveoli]