Muscles of Respiration Flashcards
1
Q
external intercostals
A
elevates ribs during inhalation, rib to rib, superficial
2
Q
internal intercostals
A
depresses/lowers ribs during forced exhalation
3
Q
diaphragm
A
enlarges thoracic cavity during inhalation, dome shaped, attaches to central tendon, broad
- contraction = flatten
4
Q
the diaphragm is…
A
most important muscle for breathing
- also contractions increase intra-abdominal pressure, important for urination, defecation, childbirth, movement of venous blood
