Kinesiology 2222A/B Study Guide - Final Guide: Supinator Muscle, Scapula, Shoulder Joint

• School: Western University
• Department: Kinesiology
• Course: Kinesiology 2222A/B
• Professor: Jamie Melling

Document Summary

Biceps brachii (2 heads: origin: long head: supraglenoid tubercle of scapula; short head: coracoid process of scapula. Insertion: bicipital tuberosity of the radius; long head runs through the bicipital groove; both head become one and insert onto the radial tuberosity. Innervation: musculocutaneous nerve: function: both heads elbow flexion and shoulder flexion (supinates the forearm) it relaxes during pronation; both heads cross the shoulder joint and are strong contributors to the shoulder flexion. Insertion: ulnar tuberosity & coronoid process: origin: anterior, distal half of humerus; brachium, function: flexes forearm at elbow; most powerful flexor of the elbow. Origin: long head infraglenoid tubercle of scapula; lateral & medial head brachium. Pronator teres: origin: medial epicondyle of humerus. Innervation: median nerve: function: pronate & flex forearm at elbow. Flexor carpi radialis: origin: medial epicondyle of humerus. Innervation: median nerve: function: flexes/abducts the wrist. Palmaris longus: origin: medial epicondyle, function: weakly flexes the wrist. Insertion: encloses the pisiform; base of the 5th metacarpal.