The Respiratory System Flashcards
What is respiration?
The body taking in oxygen and removing carbon dioxide
What is it called when you breathe in?
Inspiration
What is called when you breathe out?
Expiration
How does the respiratory process begin?
It begins with inspiration through the nose or mouth. The air travels through the trachea and iinto the lungs via the bronchi, which then branch into bronchioles.
What is the pharynx?
A tubular passageway for both food and air
What is another name for the larynx and where is it located?
It also called the voicebox and is located at the beginning of the trachea.
What is another name for the trachea?
The windpipe
What are the two branches of the trachea?
The right bronchus and the left bronchus, or bronchi
What are alveoli?
tiny, one-cell sacs that appear in grape-like clusters
What supplies blood to the alveoli?
The capillaries
What are venules?
Small veins
How many layers is the pleura and where are they located?
Two; one is attached to the chest wall and the other is attached to the surface of the lung
What is the space between the layers filled with?
A thin fluid that lubricates the layers, preventing them from rubbing together during breathing
What are the functions of the respiratory system?
To bring oxygen into the body and to eliminate carbon dioxide produced as the body uses oxygen
What are normal changes of aging associated with the respiratory system?
Lung strength decreases, lung capacity decreases, oxygen in the blood decreases, and voice weakens
