Respiratory System Flashcards
(11 cards)
What do the capillaries do
They work with the alveoli to get oxygen to the working muscles
What is the order of the respiratory system
1.nasal cavity
2.pharynx
3.epiglottis
4.larynx
5.trachea
6.bronchus
7.bronchioles
8.diaphragm
What happens to the diaphragm when breathing in and out
In= diaphragm contracts
Out= diaphragm relaxes
Explain gas exchange
Gases exchange when there is a dissuasion gradient. Gas moves from high concentration to low
What is the lung volumes
-tidal volume
-expiratory and inspiratory reserve vols
-vital capacity
-residual vol
-total lung vol
What is tidal volume
Amount of air inspired or expired in a normal breath
What is vital capacity
Volume of air that can be inspired or expired per breath including forced breathing
What is the job of the respiratory system
-take air into the body
-extract some of the oxygen from it
-process of moving air in and out of lungs
How does the medulla control breathing
When starting to exercise chemoreceptors detect a increase in Co2 medulla increases breathing rate then the chemoreceptors detect a drop in Co2 and reduces breathing rate
2 short term responses
-increase breathing rate
-increase tidal volume
2 long term responses
-increase strength of respiratory muscles
-increased vital capacity