human anatomy Christine M. Eckel A synergist of the trapezius for the action of
ID: 96726 • Letter: H
Question
human anatomy Christine M. Eckel A synergist of the trapezius for the action of adduction of the scapula is the rhomboid major, whereas a synergist of the trapezius for the action of elevation of the scapula is the levator scapulae.________ Damage to the serratus anterior muscle is tested by having a patient push against a wall with an outstretched upper limb. If there is weakness or paralysis of the muscle, the scapula will do which of the following? ____ a. adduct excessively ____ b. abduct excessively ___ C. "wing" (medial border moves posterior) ____ d. depress excessively One or more of the rotator cuff muscles cause which of the following movements of the arm? _____ a. abduction _____ b. adduction _____c. extension ____d. flexion _____ e. lateral rotation ____f. medial rotation The _____ (anterior/posterior) compartment of the arm consists largely of forearm flexors, whereas the ______ (anterior/posterior) compartment consists largely of forearm extensors. The biceps brachii is a prime mover for the action of forearm _______ (flexion/supination). The biceps brachii is a synergist with the brachialis muscle for the action of forearm ____ (flexion/supination). Match the muscles listed in column A with the appropriate compartment of the forearm listed in column B. Each compartment may be used more than once. ____ 1. extensor indicis ____ 2. flexor carpi ulnaris _____3. palmaris longus ____4. pronator quadratus _____5. supinator a. anterior compartment b. posterior compartment The palmaris longus is ______ (deep/superficial) to the flexor retinaculum and inserts onto the palmar aponeurosis.Explanation / Answer
5. The anterior compartment of the arm consistes largely of flexors, where as the posterior compartment compartment consists largely of forearm extensors.
6. The bisceps brachii is a prime mover of the action of fore arm supination. The bisceps brachii is a synergist with the brachialis muscle for the action of fore arm flexion.
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