KIN 121 Lecture 8: Lecture 8-notes
16 Dec 2015
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Attachments: sternum and clavicle to base of skull (bump behind ears is mastoid. Function: flexes neck- when both sides contract, rotates head- when one side. Abdominals: rectus abdominis, external oblique, internal oblique, transversus abdominals. Attachments: from sacrum and ilium (posterior) to base of skull (back) Function: upper portion extends neck (lower portion extends trunk) Attachments: iliac crest, than all vertebrae to skull. Function: trunk extension, anti gravity muscles (very important in back injury prevention. Attachments: sternum to adjacent ribs to pubic bone. Function: trunk flexion, pelvis stabilization, trunk rotation. Spine of the scapula (shoulder blade: function: upper - shoulder elevation (neck ext. ) middle - shoulder retraction (scap. Add) lower - shoulder depression: proximal attachment: lateral clavicle (collar bone), lateral scapula (shoulder blade, distal attachment, * function: Subscapularis (rotator cuff: proximal attachment, distal attachment: Superior aspect of head of humerus (upper arm) Supraspinatus (rotator cuff: proximal attachment, distal attachment, * function:
