Anatomy and Cell Biology 3319 Lecture Notes - Lecture 9: Splenius Muscles, Temporal Bone, Abdominal External Oblique Muscle
6 Jul 2016
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Back muscle do errection, but abdominal muscles bring about flexion (antagonist to the back). Axial skeleton= 29 skull bones + 25 rib cage + 26 vertebral column=80 bones. Contains auricular surfaces which articulate with the hip/pelvic bone. Sacroiliac joint; between the pelvic bone and sacrum. 2 pelvic bones on either side of ileum. The pelvic bone can be divided into 3 different regions (they are one fused bone, but came about from different ossification centers) Sharp ending of ilium; anterior superior iliac spine (aka asis) Red line=inguinal ligament; runs from from the asis down to to pubic tubercle (a little bump part of the pubic crest) Becomes important when talking about inguinal canal and how inguinal hernia can developed. This ligament is formed by the edge of one of the abdominal muscle (exterior oblique) Superior border of ilium is known as iliac crest. Pubic symphasis; where the two pubic bones come together.
