KINESIOL 4J03 Study Guide - Final Guide: Triangular Space, Glenoid Labrum, Accessory Nerve

• School: McMaster University
• Department: Kinesiology
• Course: KINESIOL 4J03
• Professor: Krista Madsen

Document Summary

Scm: medially: imaginary sagittal line down midline of body, common carotid artery passes through as well as internal jugular vein, cranial nerves, divided into carotid triangle, submental triangle, submandibular triangle and muscular triangle. Skull: ethmoid bone, frontal bone, occipital bone, parietal bone (2, sphenoid bone, temporal bone (2) In external rotation, anterior band widens out along with axillary pouch to support humeral head: most important of three ghls as it prevents dislocation at extreme range of motion and main stabiliser of the abd shoulder. Internal intercostal muscles: arise at lower margin of rib and insert on upper margin of next lower rib (run obliquely down and backwards, depress the ribs in expiration, support intercostal spaces and stabilize the chest wall. Innermost intercostal muscles: division of internal intercostals (same course and action, deep layer, composed on transversus thoracis muscl, sternocostal muscle, subcostalis muscle. Joint actions: biceps brachii, elbow: flexion, supination, shoulder: flexion, stabilization of humeral head during deltoid contraction,