Anatomy of Breathing Flashcards
1
Q
Why we breathe
A
Take in oxygen for cellular respiration
Expel CO2 that’s produced during the same
Other physical benefits of breathing:
Massage of the internal organs and the heart
2
Q
The diaphragma
A
Main breathing muscle
Does around 75% of the work
Separates the thoracic and abdominal cavities
“nipple to navel” anatomical position
Is controlled both voluntarily and involuntarily
Attachments:
Bottom of the lungs
Inner borders of the rib cage
Has two “tails” attached to the spine
Contracts during an active inhale
