Anatomy and Cell Biology 3319 Chapter Notes -Defecation, Pelvic Outlet, Mastoid Part Of The Temporal Bone
3 Mar 2014
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Document Summary
In adults, 3 bones are fused and boundaries are indistinguishable pelvic surface: receives ball-shaped head of femur. 5 cm lateral to midline of the back at the junction of lumbar and gluteal regions. Just inferior to ischial spine is lesser sciatic notch: nerves pass & vessels that serve perineum (area around anus & external genitalia) Large hole: obturator formaen: occurs between pubis & ischium, few nerves & vessels pass through it, almost completely closed by fibrous membrane: obturator membrane. In midline bodies of two pubic bones are joined by disc of fibrocartilage joint: pubic symphysis. Inferior to joint inferior pubic rami & ischial rami from arch shaped like inverted v pubic arch or subpubic angle: angle of this arch helps to distinguish male pelvis from female pelvis. Located deep to platysma on anterolateral surface of neck: delineate limits of anterior & posterior triangles of the neck. O manubrium of sternum & medial portion of clavical.
