Muscles by Function - Statistics

General Stats

Answer Stats

Muscle	Function	% Correct
Deltoid	Abducts arm	58%
Quadriceps group	All extend knee; rectus femoris also flexes hip on thigh	58%
Triceps brachii	Extends elbow	58%
Biceps brachii	Flexes elbow and supinates forearm	50%
Brachialis	Flexes elbow	50%
Trapezius	Raises, retracts, and rotates scapula	50%
Gluteus maximus	Extends hip (when forceful extension is required)	46%
Pectoralis major	Adducts and flexes humerus	46%
Adductor muscles	Adduct and medially rotate thigh	42%
Buccinator	Compresses cheek (as in sucking); holds food between teeth during chewing	42%
Erector spinae	Extends and laterally flexes spine	42%
Gluteus medius	Abducts thigh; steadies pelvis during walking	42%
Hamstring muscles	Flex knee and extend hip	42%
Temporalis \| Masseter	Closes jaw	42%
Frontalis	Raises eyebrows	38%
Latissimus dorsi	Extends and adducts humerus	38%
Extensor digitorum	Extends fingers	33%
Extensor digitorum longus	Extends toes	33%
Orbicularis oris	Closes and protrudes lips	33%
Platysma	Tenses skin of neck (as in shaving)	33%
Sternocleidomastoid	Flexes neck; laterally rotates head	33%
Occipitalis	Fixes aponeurosis and pulls scalp posteriorly	25%
Orbicularis oculi	Blinks and closes eye	25%
Flexor digitorum superficialis	Flexes wrist and fingers	21%
Zygomaticus	Raises corner of mouth	21%
External oblique	Flexes and rotates vertebral column	17%
Rectus abdominis	Flexes vertebral column	17%

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