MUSCLES OF THE AB WALL AND PELVIC OUTLETp. 201-203

MUSCLES OF ABDOMINAL WALL

Linea Alba: band of tough connective tissue that extends from xiphoid process to symphysis pubis.

Contraction decreases size of ab. Cavity and increases pressure inside.

Aid in: Forcing air out of lungs Defecation Urination Vomiting childbirth

MUSCLES OF AB WALL

Include: External oblique Internal oblique Transversus abdominis Rectus abdominis

MUSCLES OF PELVIC OUTLET

Two muscular Sheets Pelvic diaphragm

Forms the floor of pelvic cavity Urogenital diaphragm

Fills space within the pubic arch

PELVIC OUTLET (MALES AND FEMALES)

Include: Pelvic Diaphragm

Levator ani Urogenital diaphragm

Superficial transversus perinei, Bulbospongiosus, Ischiocavernosus

MUSCLES THAT MOVE THE THIGH

Anterior and Posterior groups Anterior: primarily flex thigh Posterior: proimarily extend, abduct, or rotate

thigh

Include: Anterior group: Other Group:

Psoas major *Adductor longus Iliacus *Adductor magnus

Posterior group *Gracilis Gluteus maximus Gluteus medius Gluteus minimus Tenros fasciae latae

MUSCLES THAT MOVE THE THIGH