Respiratory System Functions and Anatomy

The video tutorial covers the anatomy of the respiratory system, explaining its division into the upper and lower tracts. It details the components of the nasal cavity, pharynx, larynx, trachea, bronchi, and lungs, highlighting their functions. The tutorial also describes the structure of alveoli and their role in gas exchange, as well as the pleural membranes that aid in lung function.

What is the primary function of the respiratory system?

• To digest food

• To produce hormones

• To circulate blood

• To take in oxygen and release carbon dioxide

Which of the following is part of the upper respiratory tract?

• Trachea

• Bronchi

• Larynx

• Alveoli

What is the function of the nasal conchae?

• To produce sound

• To create turbulent airflow for heating, cleaning, and humidifying air

• To secrete surfactant

• To protect the airway during swallowing

Which cartilage is known as the Adam's apple?

• Epiglottis

• Cricoid cartilage

• Arytenoid cartilage

• Thyroid cartilage

What is the role of the epiglottis?

• To close the airway during swallowing

• To secrete mucus

• To divide the bronchi

• To produce sound

What is the function of the cilia in the trachea?

• To produce sound

• To secrete surfactant

• To divide the bronchi

• To move debris toward the pharynx

Where does gas exchange occur in the lungs?

• In the trachea

• In the nasal cavity

• In the bronchi

• In the alveoli

What is the role of surfactant in the lungs?

• To divide the bronchi

• To produce sound

• To reduce surface tension and prevent lung collapse

• To increase surface tension

How many lobes does the right lung have?

• One

• Two

• Three

• Four

What is the function of the pleural cavity?

• To reduce friction and help keep the lungs inflated

• To divide the bronchi

• To secrete surfactant

• To produce sound