Front

What is the main function of the respiratory system?

Back

The main function of the respiratory system is to facilitate gas exchange, allowing oxygen to enter the body and carbon dioxide to be expelled.

Front

List the primary structures involved in the respiratory system.

Back

The primary structures include the nasal cavity, pharynx, larynx, trachea, bronchi, bronchioles, and alveoli.

Front

What is the role of the alveoli in the respiratory system?

Back

Alveoli are tiny air sacs in the lungs where gas exchange occurs; they allow oxygen to enter the blood and carbon dioxide to be removed.

Front

Describe the pathway of air during inhalation.

Back

Air flows through the nasal cavity, then to the pharynx, larynx, trachea, bronchi, and finally into the alveoli.

Front

What is the function of the larynx?

Back

The larynx, or voice box, is responsible for sound production and protecting the trachea against food aspiration.

Front

What is the trachea and its role in the respiratory system?

Back

The trachea, or windpipe, is a tube that connects the larynx to the bronchi, allowing air to pass to and from the lungs.

Front

Explain the process of gas exchange in the alveoli.

Back

Gas exchange occurs in the alveoli where oxygen diffuses into the blood and carbon dioxide diffuses out of the blood into the alveoli.

Front

What are bronchi and their function?

Back

Bronchi are the main passageways that branch from the trachea into the lungs, directing air to each lung.

Front

Define respiration in the context of the respiratory system.

Back

Respiration is the process of inhaling oxygen and exhaling carbon dioxide, essential for cellular metabolism.

Front

What is the role of capillaries in the respiratory system?

Back

Capillaries are tiny blood vessels that surround the alveoli, facilitating the exchange of gases between the blood and the air.