Human Respiratory System Quiz

What are the primary roles of the human respiratory system?

• To digest food and absorb nutrients

• To intake oxygen and remove carbon dioxide

• To circulate blood throughout the body

• To produce hormones

What is required for efficient respiration in humans?

• High temperature and low pressure

• Large surface area and moist environment

• Low humidity and high altitude

• High carbon dioxide concentration

What is the function of alveoli in the respiratory system?

• To filter blood

• To exchange gases

• To produce energy

• To digest food

Which stage of respiration involves the movement of air into and out of the lungs?

• External Respiration

• Internal Respiration

• Breathing

• Cellular Respiration

What is the primary function of the nasal cavity?

• To produce sound

• To trap dust and microbes

• To secrete digestive enzymes

• To transport blood

What structures in the nasal cavity help increase the surface area?

• Vocal cords

• Cilia

• Turbinate bones

• Cartilaginous rings

What is the role of the epiglottis during swallowing?

• To open the nasal cavity

• To close over the trachea

• To produce sound

• To filter air

Where is the larynx located?

• Above the pharynx

• Below the pharynx

• Inside the nasal cavity

• Next to the trachea

What controls the pitch of the sound produced by the larynx?

• The size of the nasal cavity

• The tension of the vocal cords

• The length of the trachea

• The amount of mucus

What is the role of the oral cavity in the respiratory system?

• To produce sound

• To serve as an alternative pathway for air entry

• To secrete mucus

• To filter air