Kinesiology 2222A/B Lecture Notes - Lecture 2: Lesser Sac, Genitofemoral Nerve, Greater Omentum

• School: Western University
• Department: Kinesiology
• Course: Kinesiology 2222A/B
• Professor: Jamie Melling

Document Summary

Linea semilunaris lateral outline of rectus abdominis muscle. Linea alba connective tissue that goes down midline of abdominal region. Tendinous insertions outline 6-pa(cid:272)k (cid:373)us(cid:272)le (cid:271)ell(cid:455)(cid:859)s of re(cid:272)tus a(cid:271)do(cid:373)i(cid:374)is (cid:449)/ te(cid:374)di(cid:374)ous i(cid:374)sertio(cid:374)s. The intercostal muscles feed into the anterior rectus sheath. Superficial: external oblique muscle and its aponeurosis blend into the anterior rectus sheath with fibres running in same direction of external intercostals. Deep: transversus abdominis runs in the transverse plane and blends into connective sheet. Inguinal region is where the inguinal ligament is found; caused by the folding of external oblique aponeurosis: superficial inguinal ring is where the spermatic cord exits in males, and round ligament exits in females. Muscles support internal organs/viscera contraction of these muscles will increase intra-abdominal pressure (bowel movements, stabilize spine, exhalation, and child birth ) All 3 layers of muscles attach at lower ribs, thoracolumbar fascia, iliac crest, pubic tubercle, and linea alba. Posterior internal oblique aponeurosis and transversus ab.