Respiratory System Quiz

What is the primary function of the respiratory system?

• To digest food

• To circulate blood

• To remove waste products from the body

• To exchange gases (oxygen and carbon dioxide) with the environment

Which structure is NOT part of the human respiratory system?

• Trachea

• Bronchi

• Esophagus

• Alveoli

What is the process of gas exchange between the alveoli and the blood called?

• Ventilation

• Respiration

• Diffusion

• Perfusion

Which muscle plays a major role in the process of inhalation?

• Biceps

• Diaphragm

• Pectoralis major

• Latissimus dorsi

What is the correct path of air entering the body through the respiratory system?

• Nasal cavity → Pharynx → Larynx → Trachea → Bronchi → Alveoli

• Nasal cavity → Larynx → Pharynx → Trachea → Bronchi → Alveoli

• Nasal cavity → Trachea → Pharynx → Larynx → Bronchi → Alveoli

• Nasal cavity → Pharynx → Trachea → Larynx → Bronchi → Alveoli

Which of the following is a function of the nasal cavity in the respiratory system?

• To pump blood through the body

• To filter, warm, and moisten air

• To absorb nutrients from food

• To produce vocal sounds

What happens to the diaphragm during exhalation?

• It contracts and moves downward

• It relaxes and moves upward

• It contracts and moves upward

• It relaxes and moves downward

Which part of the brain regulates the rate of breathing?

• Cerebrum

• Cerebellum

• Medulla oblongata

• Hypothalamus