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Muscles of the Ab wall and Pelvic Outlet . p. 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
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Muscles of the Ab wall and Pelvic Outlet p. 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 • Transversusabdominis • 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 • Levatorani • Urogenital diaphragm • Superficial transversusperinei, 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