Anatomy, physiology and hygiene for high schools . ssimus dorsi 15 Pectoralis major (chest muscle) moves the trunk backward,move the trunk forward. compresses the abdominal viscera. raise and depress the ribs. raises the thorax. move head backward; move shoul-ders backward. draws arms downward and back-ward. draws arms across front of chest. Muscles of the head. 1 Occipito-frontalis moves the scalp and eyebrows. 2 Orbicularis palpebrae closes the eye. Levator palpebrae opens the eye. 11 Temporal raises the lower jaw. 9 Masseter Face muscles. raises the lower jaw. 7 Depressor labii inferioris d
Anatomy, physiology and hygiene for high schools . ssimus dorsi 15 Pectoralis major (chest muscle) moves the trunk backward,move the trunk forward. compresses the abdominal viscera. raise and depress the ribs. raises the thorax. move head backward; move shoul-ders backward. draws arms downward and back-ward. draws arms across front of chest. Muscles of the head. 1 Occipito-frontalis moves the scalp and eyebrows. 2 Orbicularis palpebrae closes the eye. Levator palpebrae opens the eye. 11 Temporal raises the lower jaw. 9 Masseter Face muscles. raises the lower jaw. 7 Depressor labii inferioris depresses the lower lip. 6 Orbicularis oris draws lips together. 10 Compressor nares depresses end of nose and drawssides together. 4 Zygomaticus major draws angle of mouth upward andoutward. 3 Levator labii superioris alae- raises the upper lip and side of the que nasi nose. Muscles of the Platysma myoides 13 Sterno-cleido-mastoidScalenus depresses lower jaw and lower head upon neck and chest,moves head and neck to the The muscular system. 78 PHYSIOLOaY AND HYGIENE Muscles of the upper Deltoid (from shoulder to arm) carries arm outward and upward. 1920 22 21 Biceps Triceps Brachialis anticusI Supinator longus( Pronator radii teresr Flexor carpi radialis \-^ Palmaris longus / ( Flexor carpi, ulnaris / Extensor carpi radialis Extensor carpi ulnaris flexes forearm and raises arm. extends forearm. flexes forearm. rotates and flexes forearm. rotates forearm. flex hand at wrist,extend the hand. 2423 Muscles of the hand. Interosseous musclesAbductor pollicisFlexor brevis pollicis move fingers. draws thumb outward. flexes thumb. Muscles of the lower limb. V Psoas magnus (from trunk tothigh)26 Quadriceps extensor cruris 25 Sartorius 27 2931 28 S Adductor longusAdductor magnusGracilisGluteus maximusBiceps flexor crurisSemimembranosusSemitendinosusGluteus mediusGluteus minimusTibialis anticus Extensor longus digitorum pedis( Gastrocnemius ) (calf mus-(
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