KP221 Lecture Notes - Lecture 17: Abdomen, Aponeurosis, Pectin
16 Feb 2017
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Thorax region: thoracic vertebrae 12 thoracic vertebrae, 12 ribs. 5 paired muscles in anteriolateral wall to the sides. Mid sagittal cut long axis then 2 equal halves. 3 flat muscles: look like pieces of bacon, anteriorly form strong aponeuroses a thick band to keep something tight to the bone, keep visceral organs protected, close to midline forms rectus sheath. 3 flat muscles all anchor to linea alba. External oblique muscles: finger like muscles, can feel it along lateral wall, the fleshy part, largest and most superficial layer, forms the ab aponeuroses: anterior wall. Inferior border: inguinal ligament divides hip from trunk region like on a barbie doll: diagastric muscle: helps with digestive process, o: Linea alba (cid:498)white line(cid:499) along midsagittal plane, separates right from left ab region. During pregnancy, linea alba turns black, linea negra. Downward rotation, not just across: looks like serratus anterior, overlap with each other.
