ANTR 350 1st Edition Lecture 17Outline of Last Lecture I. Four main muscle groupsII. Motions of scapulaIII. Winged scapulaOutline of Current Lecture II. Innervation III. Nerve damageCurrent Lecture-innervation-bracial plexus: brachial plexus is located in the upper trunk and shoulder region of the body and extends from the root of the neck to the axilla passing deep to the clavicle-brachial plexus is formed from the anterior/ventral rami of spinal nerves C5 to T1-subdivided into five different portions-rami (5)-trunks (3)-divisions (2)-cords (3)-branches (5)-nerve damage-axillary nerve-glenohumeral joint dislocation-fracture at surgical neck-weak abduction of armThese notes represent a detailed interpretation of the professor’s lecture. GradeBuddy is best used as a supplement to your own notes, not as a substitute.-radial nerve at midshaft of humerus-entrapment of radial nerve in radial groove-can be caused by midshaft fracture-poor fitting crutches sensory damage-weak wrist extension-ulnar nerve at the elbow-funny bone-ulnar nerve banged between medial epicondyle and an object-weak power grip-numbness of medial 1 ½ digits-median nerve at the wrist-median nerve entrapment in carpal tunnel-tunnel formed = carpal bones and flexor retinaculum-carpal tunnel contents: median nerve and 9 flexor tendons-tendonitis can cause median nerve entrapment-weak grip-lose thumb opposition-loss of sensation in lateral 3 ½
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