A&P Lab Exam 1 Functions (Muscles)

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gluteus maximus

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38 Terms

1

gluteus maximus

extension of thigh at hip , lateral rotation of thigh at hip

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2

gluteus medius and gluteus minimus

abduction and medial rotation of thigh at hip

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3

piriformis, obturator internus (tendon), gemelli

lateral rotation of extended thigh at hip, abduction of flexed thigh at the hip

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4

quadratus femoris

laterally rotates thigh at hip, adduction of thigh

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5

semitendinosus and semimembranosus

extension of thigh at hip, flexion of leg at knee and rotates medially

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6

biceps femoris (long/short head)

flexion of leg at knee and rotates it laterally, extension of thigh at hip

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7

tensor fasciate latae

abduction of thigh at hip, medial rotation of thigh at hip

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8

sartorius

abduction of thigh at hip, flexion of thigh at hip; lateral rotation of thigh at hip joint and flexion of knee joint (crisscross applesauce motion)

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9

rectus femoris

extension of leg at knee joint and flexion of thigh at hip

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10

vastus lateralis, vastus medialis, vastus intermedius

extension of leg at knee joint

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11

pectineus

adduction of thigh at hip, flexion of thigh at hip

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12

adductor longus

adduction of thigh at hip; external/lateral rotation and flexion of thigh at hip

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13

adductor brevis

adduction of thigh at hip; extension of thigh at hip

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14

adductor magnus

adduction of thigh at hip; flexion of thigh at hip

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15

gracilis

adduction of thigh at hip; flexion of leg at knee; assists in medial rotation

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16

quadriceps

extension of knee, flexion of hip

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17

illiopsoas

flexion of hip joint, external rotation of femur; flexor of thigh and trunk

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18

gastrocnemius

plantarflexion, flexion of leg at knee joint

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19

soleus

plantarflexion of foot at ankle, steadies leg on foot

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20

plantaris

plantarflexion, flexion of knee

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21

popliteus

flexion of leg at knee; unlocks knee

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22

flexor hallucis longus

flexion of great toe, plantarflexion

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23

flexor digitorum longus

flexion of lateral 4 digits, plantarflexion

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24

tibialis posterior

plantarflexion, inversion of foot

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25

tibialis anterior

dorsiflexion of foot, inversion of foot

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26

extensor hallucis longus

extends great toe, dorsiflexion

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27

extensor digitorum longus

extends lateral four digits, dorsiflexion

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28

fibularis tertius

dorsiflexion, eversion of foot

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29

fibularis longus and fibularis brevis

eversion of foot, plantarflexion

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30

extensor digitorum brevis

extension of toes 2-4

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31

extensor hallucis brevis

extension of great toe

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32

flexor digitorum brevis

flexes lateral four digits at interphalangeal joints

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33

Abductor Hallucis

abducts and flexes great toe

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34

Abductor Digiti Minimi

abducts and flexes little toe

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35

Flexor Digiti Minimi Brevis

flexes proximal phalanx of little toe

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36

Quadratus Plantae

assists flexor digitorum longus in flexing lateral four digits

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37

Adductor hallucis (transverse/oblique head)

adducts great toe; assists in maintaining transverse arch of the foot

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38

Lumbricals

flexion of proximal phalanges; extension of middle and distal phalanges of lateral four digits

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