Respiratory System Quiz

Which part of the respiratory system is responsible for filtering, warming, and humidifying the air?

• Nasal cavity

• Bronchi

• Trachea

• Larynx

Which part of the respiratory system serves as a common pathway for both the respiratory and digestive systems?

• Pharynx

• Larynx

• Trachea

• Bronchioles

What is the function of the C-shaped rings of cartilage in the trachea?

• Prevent collapse during inhalation

• Filter the air

• Exchange gases with the environment

• Produce mucus

Where does gas exchange occur between air and blood in the respiratory system?

• Bronchioles

• Alveoli

• Bronchi

• Larynx

What is the process of exchange of gases between body cells and the environment known as?

• Respiration

• Digestion

• Excretion

• Circulation

During inspiration, what happens to the diaphragm?

• Expands outward

• Relaxes

• Moves downwards

• Contracts

What is the role of the pneumotaxic center in the regulation of respiration?

• Stimulate the inspiratory area

• Inhibit the inspiratory center

• Control the rate and rhythm of respiration

• Facilitate forceful expiration

Where are central chemoreceptors located in the respiratory system?

• Cerebral cortex

• Medulla oblongata

• Aortic bodies

• Carotid bodies

What is the maximum amount of air a person can exhale after a maximal inhalation called?

• Inspiratory Reserve Volume

• Tidal Volume

• Vital Capacity

• Expiratory Reserve Volume

What is the primary form in which oxygen is transported in the blood?

• Bicarbonate ions

• Oxyhemoglobin

• Carbaminohemoglobin

• Dissolved CO2