Respiratory system

bronchioles

a network of smaller branches leading from the bronchi into the lung tissue and ultimately to air sacs

Pleurae

produce lubricating fluid and compartmentalize lungs

Ribs

protects the heart and lungs

gas exchange between

PO2 alveolar air > PO2 blood
PCO2 blood > PCO2 alveolar ai

Mechanics of breathing

inspiration and expiration

respiratory process

muscles of the respiratory system release air into the larynx and supra laryngeal system to generate speech

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The main function is to bring in oxygen and expel carbon dioxide.

The oxygen is then supplied to all parts of your body and carbon dioxide is expelled as it is a waste product.

Secondary functions include voice production, protection against microorganisms and sense of smell.

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The main function is to bring in oxygen and expel carbon dioxide.

The oxygen is then supplied to all parts of your body and carbon dioxide is expelled as it is a waste product.

Secondary functions include voice production, protection against microorganisms and sense of smell.

is part of both the digestive and respiratory systems. For the digestive system, its muscular walls function in the process of swallowing, and it serves as a pathway for the movement of food from the mouth to the esophagus. ( the throat)

Routes air and food into the proper channels and plays a role in speech

transport food to stomach

air passageway; cleans, warms, and moistens incoming air

Smooth muscle tissue in the walls helps regulate and carry air from the trachea to the lungs

These muscles help inhalation/exhalation by assisting the movement of the rib cage up and down.

separates the digestive cavity from the respiratory cavity, contracts and relaxes to help the lungs inflate and deflate

protection of heart, lungs, esophagus, distal trachea, major A/V