Muscle terms and act
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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| epicranius frontalis | raises eyebrows, wrinkles forehead
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| epicranius occipitus | tenses and retracts scalp
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| orbicularis oculi | closes eye
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| zygomaticus | retracts and elevates corner of mouth (smile)
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| orbicularis oris | compresses lips (kiss)
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| buccinator | compresses cheeks (whistle)
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| temporalis | elevates mandible
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| external intercostals | elevates rib for inspiration
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| internal intercostals | depresses ribs for expiration
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| diaphragm | contraction expands thorax
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| pectoralis major | flexion of arm, raises chest for forced inspiration
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| pectoralis minor | glenoid cavity moves inferiorly
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| serratus anterior | moves scapula toward chest wall
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| rectus abdominus | flexes spine
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| triceps brachii | extension at elbow
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| coracobrachialis | adduction at shoulder
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| biceps brachii | flexion at elbow
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| brachioradialis | flexion at elbow
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| brachialis | flexion at elbow
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| rhomboid major | retraction (pulls medially) of scapula
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| rhomboid minor | retraction (pulls medially) of scapula
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| latissimis dorsi | adduction and extension at shoulder
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| erector spinae | extension of spine (upright posture)
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| triceps brachii | extension at elbow
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| coracobrachialis | adduction at shoulder
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| biceps brachii | flexion at elbow
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| brachioradialis | flexion at elbow
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| brachialis | flexion at elbow
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| transverse abdominus | supports spine
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| masseter | elevates mandible
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| digastric | depresses mandible
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| platysma | depresses mandible and tenses skin of neck
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| sternocleidomastoid | flex the neck/ bends head up and face to opposite side
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| trapezius | elevate, retract, depress, rotate scapula/ extend neck
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| deltoid | abduction or flexion or extension or rotation at shoulder
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| teres major | medial rotation at shoulder
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| teres minor | lateral rotation at shoulder, rotator cuff
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| subscapularis | medial rotation at shoulder, rotator cuff
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| infraspinatus | lateral rotation at shoulder, rotator cuff
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| supraspinatus | abduction at shoulder, rotator cuff
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| tendons | a structure that connects muscle to bone
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| aponeurosis | are layers of flat broad tendons.
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| origin | attached to bone is not moved by the contraction of the muscle.[
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| insertion | end of the muscle
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Created by:
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