Pathway of Air
Air enters the body through the mouth cavity or the _______________
nasal cavity
Air sacks in the lungs where gas exchange takes place
Alveoli
Diaphragm
The number of breaths you take per minute
The series of organs responsible for taking in oxygen and expelling carbon dioxide
Respiratory System
The process where oxygen and carbon dioxide are exchanged
gaseous exchange
Another name for breathing in
Inhalation or inspiration
The amount of air left in your lungs after breathing out
Residual Volume
The trachea branches into the right and left ______________
bronchi
Tiny blood vessels that surround each alveolus
capillaries
The muscles between the ribs
Intercostal muscles
The maximum amount of air you can breathe out
Vital Capacity
What is the equation used to calculate minute ventilation?
Minute ventilation= Tidal volume x Respiratory Rate
The branches of the bronchi are called
bronchioles
What causes O2 and CO2 to diffuse in and out of the capillaries?
Pressure gradient (difference in pressure)
During inhalation, the volume of the lungs _____________
increases
The volume of air that you breathe per minute
Minute Ventilation
The equation used to calculate total lung capacity
The main purpose of this organ is to produce sound
larynx
The walls of the capillaries are ____________________ allowing gases to exchange easily
one cell thick
During exhalation, the diaphragm _______________
relaxes and domes upward
The volume of air you inhale with each breath during normal breathing
Tidal Volume