R E V I E W
S H E E T
Gross Anatomy of the Muscular System
Classification of Skeletal Muscles
1. Several criteria were given for the naming of muscles. Match the criteria (column B) to the muscle names (column A). Note that more than one criterion may apply in some cases. Column A
Column B a. b. c. d. e. f. g. action of the muscle shape of the muscle location of the origin and/or insertion of the muscle number of origins location of the muscle relative to a bone or body region direction in which the muscle fibers run relative to some imaginary line relative size of the muscle
1. gluteus maximus 2. adductor magnus 3. biceps femoris 4. transversus abdominis 5. extensor carpi ulnaris 6. trapezius 7. rectus femoris 8. external oblique
D,E E,F A,C,E B E,F E,F
2. Match the key terms to the muscles and movements described below. Key: a. prime mover (agonist) 1. 2. 3. 4. 5. 6. b. antagonist c. synergist d. fixator
A D B
C C D
term for the biceps brachii during elbow flexion term that describes the relation of brachialis to biceps brachii during elbow flexion term for the triceps brachii during elbow flexion term for the iliopsoas during hip extension term for the gluteus maximus during hip extension when walking up stairs terms for the rotator cuff muscles and deltoid when the elbow is flexed and the hand grabs a tabletop to lift the table
Muscles of the Head and Neck
3. Using choices from the key at the right, correctly identify muscles provided with leader lines on the diagram. Key: a. buccinator b. corrugator supercilii
c. depressor anguli oris d. depressor labii inferioris
e. epicranius (frontal belly) f. epicranius (occipital belly) g. levator labii superioris
h. masseter i. mentalis
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