Breathing Flashcards
(7 cards)
What is breathing
Breathing is the process that moves air in and out of the lungs.
What causes air to move
Movements of the ribs, rib muscles and diaphragm causes the air to move.
Label the chest for breathing
Breathing sequence for inspiration
•Diaphragm contracts
•Diaphragm flattens
•Intercostal muscles contract
•Ribs move up and out
•Volume of chest increases
•Pressure in lungs decreases
•Air is drawn into lungs
Breathing sequence for expiration
•Diaphragm relaxes
•Diaphragm moves up (arches)
•Intercostal muscles relax
•Ribs move down and in
•Volume of chest decreases
•Pressure in lungs increases
•Air is pushed out of lungs
Name for breathing in
Inspiration
Name for breathing out
Expiration