Respiratory System Flashcards

Flashcards about the respiratory system, its processes, components, and health issues.

Respiratory System Function

Supplying oxygen to the body and removing carbon dioxide through cellular respiration.

Breathing

Physical process of inhalation and exhalation.

Gaseous Exchange

Exchange of oxygen and carbon dioxide through the process of diffusion.

Cellular Respiration

Process whereby glucose is broken down inside the cells by oxygen; releases energy and produces carbon dioxide and water.

Nose and Mouth

Outer openings to allow air to flow through.

Nostrils

Leads to nasal cavities.

Trachea (windpipe)

Tube that enters the chest.

Cricoid cartilage

What keeps the trenches open

Bronchi

Two smaller tubes that the trachea branches into, which enter the lungs.

Bronchioles

Smaller tubes that the bronchi branch into.

Infundibulum

Small lung sac at the end of a bronchiole.

Lungs

Main organ of the respiratory system; two spongy, elastic organs in the chest cavity.

Diaphragm

Dome-shaped muscular partition below the lungs.

Diaphragm

Most important muscle used for breathing.

Asthma

Condition caused by allergies, leading to narrowed airways.

Lung Cancer

Cells in lungs grow out of control and form tumors.

Bronchitis

Swelling of the lining of the bronchi due to infection.

Bronchitis Symptoms

Airways become congested with mucus.

Tuberculosis (TB)

Condition caused by bacteria; contagious and breaks down lung tissue.