Sistem Otot Muskular 1 (Muscular System)

8/2/2019 Sistem Otot Muskular 1 (Muscular System)

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Skeletal Muscle

Anatomy and Physiology IUnit 8The Muscular System


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The Skeletal Muscles

There are about 650 muscles in the

human body. They enable us to

move, maintain posture and generate

heat. In this section we will onlystudy a sample of the major muscles.


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Types of Musculo-Skeletal

Movement


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Flexion


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Extension


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Hyperextension


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Abduction, Adduction &

Circumduction


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Rotation


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Muscle Attachments

Origin

Insertion


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SternocleidomastoideusFlexes and Rotates Head


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MasseterElevate Mandible


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TemporalisElevate & Retract Mandible


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TrapeziusExtend Head, Adduct, Elevate or

Depress Scapula


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Latissimus DorsiExtend, Adduct & Rotate Arm Medially


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DeltoidAbduct, Flex & Extend Arm


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Pectoralis Major

Flexes, adducts & rotates arm medially


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Biceps BrachiiFlexes Elbow Joint


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Triceps BrachiiExtend Elbow Joint


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Rectus AbdominusFlexes Abdomen


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External ObliqueCompress Abdomen


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External IntercostalsElevate ribs


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Internal IntercostalsDepress ribs


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DiaphragmInspiration


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Forearm Muscles

Flexor carpiFlexes wrist

Extensor carpiExtends wrist

Flexor digitorumFlexes fingers

Extensor digitorumExtends fingers

PronatorPronates

SupinatorSupinates

Gl M i


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Gluteus MaximusExtends & Rotates

Thigh Laterally

R t F i


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Rectus Femoris

Flexes Thigh,Extends Lower Leg

G ili


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GracilisAdducts and Flexes Thigh

S t i


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Sartorius

Flexes Thigh, &

Rotates Thigh

Laterally

Bi F i


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Biceps Femoris

Extends Thigh &Flexes Lower Leg

G t i


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Gastrocnemius

Plantar Flexes Foot

& Flex Lower Leg

Tibi li A t i


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Tibialis AnteriorDorsiflexes and Inverts Foot


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Anterior

Posterior
http://c/Documents%20and%20Settings/oem/My%20Documents/My%20Pictures/musclesanterior.jpghttp://c/Documents%20and%20Settings/oem/My%20Documents/My%20Pictures/musclesposterior.jpghttp://c/Documents%20and%20Settings/oem/My%20Documents/My%20Pictures/musclesposterior.jpghttp://c/Documents%20and%20Settings/oem/My%20Documents/My%20Pictures/musclesanterior.jpg


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Sistem Otot Muskular 1 (Muscular System)

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