Bosh miyaning tuzilishi

major—adduction, internal rotation of the upper arm, auxiliary

muscle of respiration; sternocleidomastoid muscle, also auxiliary

muscle of respiration.

The Abdominal Wall

Muscles: m. rectus abdominis, external and internal oblique muscles,

mm. transversus abdominis, psoas major, and quadratus lumborum—

rotation, flexion, lateral inclination of the trunk, compression of the

abdomen.

The Diaphragm

The most important muscle of respiration (contraction—inspiration,

relaxation—expiration).

The Pelvic Floor

Levator ani muscle—forms the pelvic diaphragm; m. transversus perinei

profundus—forms the urogenital diaphragm; medial part of the

levator ani (puborectalis), m. sphincter ani externus—voluntary constriction