Activity 7: Respiratory System 🔬

The respiratory system is a complex network of organs and structures responsible for the
exchange of gases, primarily oxygen and carbon dioxide, between the body and the
external environment.

📍Larynx

The larynx, also known as the voice box, is a cartilaginous structure located at the top of
the trachea. Composed of mucous membrane and cartilage. It plays a crucial role in the
production of sound by regulating airflow and vibration of the vocal cords, allowing for
speech and vocalization.

📍Human Lung

The human lung is a spongy, pinkish-gray organ located in the thoracic cavity. Composed
of alveoli (air sacs), bronchi, and bronchioles. It is responsible for exchanging oxygen and
carbon dioxide through the process of respiration, with the alveoli being the site of gas
exchange between the air and the bloodstream.

📍Bronchiole

Bronchioles are small airways that branch off from the bronchi. Composed of smooth
muscle and mucous membrane. They are responsible for conducting air from the bronchi
to the alveoli, allowing for the exchange of gases between the air and the bloodstream.

📍Trachea

The trachea, also known as the windpipe, is a tube that connects the larynx to the bronchi,
composed of mucous membrane and cartilage. It is responsible for conducting air from
the larynx to the bronchi. This allows for the exchange of gases between the air and the
bloodstream.

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References:
Anatomy of the Respiratory System – Health Encyclopedia – University of Rochester Medical
Center. (n.d.).
https://www.urmc.rochester.edu/encyclopedia/content.aspx?contentid=p01300&contentty
peid=85

Professional, C. C. M. (n.d.-d). Respiratory system. Cleveland Clinic.
https://my.clevelandclinic.org/health/body/21205-respiratory-system

Seed, S. (2024, January 8). Respiratory system. WebMD. https://www.webmd.com/lung/how-
we-breathe