Chapter 11 Summary Questions and Answers

Chapter 11 Summary Questions and Answers what was used in the naming of the extensor carpi radialis longus muscle muscle action, muscle shape, specific body location what are the muscles that flex the arm at the glenohumeral joint pectoralis major, deltoid (anterior fibers), coracobrachialis, biceps brachii (long head) what thigh muscle has its insertion in the head of the fibula biceps femoris what is considered the muscles of mastication masseter, temporalis, lateral and medial pterygoid muscles hold your arm out so that it is completely extended. The triceps brachii is causing the extension, so it is acting as what agonist the muscle that has its superior attachment on the mastoid process and has a bilateral action of flexing the neck is the sternocleidomastoid what are located in the superficial layer of the posterior compartment of the forearm extensor carpi radialis longus, extensor carpi radialis brevis, extensor carpi ulnaris, extensor digitorum what are the muscles of the thigh that flex the leg biceps femoris, semimembranosus, semitendinosus, gracilis what is the action of the biceps brachii muscle flexion of forearm which of the following muscles is the longest muscle in the body and is nicknamed the "tailor's muscle" because it flexes and laterally rotates the thigh while also flexing and medially rotating the leg (helping us to sit cross-legged, as tailors used to do) sartorius the type of muscles in which the fascicles are at an oblique angle to the tendon and the muscle fibers resemble a large feather is called pennate rotator cuff muscles supraspinatus, teres minor, subscapularis quadricep muscles rectus femoris, vastus lateralis, vastus intermedius hamstring muscles biceps femoris, semitendinosus, semimembranosus medial compartment muscles adductor longus, gracilis, adductor magnus posterior compartment muscles semimembranosus, semitendinosus anterior compartment muscles vastus lateralis, rectus femoris, sartorius which muscle is the most powerful muscle of mastication and functions to elevate and protract the mandible masseter