Lab practical 3 Flashcards

Muscle actions

1
Q

Orbicularis occuli

A

Closes eye, lowers eyebrows

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2
Q

Orbicularis oris

A

Closes lips

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3
Q

Buccinator

A

Compress cheeks

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4
Q

Frontalis

A

Raise eyebrows

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5
Q

Masseter

A

Elevates mandible

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6
Q

Temporalis

A

Elevates mandible

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7
Q

Sternocleidomastoid

A

Flexes neck and cocks head

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8
Q

Deltoid

A

Flexion and rotation of humerus

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9
Q

Pectoralis major

A

Flexion, adduction and rotation of humerus

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10
Q

Latissimus dorsi

A

Extension, adduction and rotation of humerus

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11
Q

Subscapularis

A

Medially rotates humerus and stabilizes shoulder

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12
Q

Supraspinatus

A

Abducts arm and stabilizes shoulder

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13
Q

Infraspinatus

A

Laterally rotates humerus and stabilizes shoulder

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14
Q

Teres minor

A

Laterally rotates humerus and stabilizes shoulder

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15
Q

Brachialis

A

Flexes elbow

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16
Q

Biceps brachii

A

Flexes elbow and supinates forearm

17
Q

Triceps brachii

A

Extends forearm at elbow

18
Q

Extensor carpi ulnaris

A

Extends wrist

19
Q

Flexor carpi ulnaris

A

Flexes wrist

20
Q

Extensor digitorum

A

Extends digits of hand and wrist

21
Q

Flexor digitorum

A

Flexes digits of hand and wrist

22
Q

Adductor longus

A

Flexes hip; adducts leg

23
Q

Adductor magnus

A

Extends hip; adducts leg

24
Q

Gluteus maximus

A

Extends hip; rotates leg laterally

25
Q

Gracilis

A

Adducts leg at hip; flexes knee

26
Q

Tensor fasciae latae

A

Stabilizes hip and knee joint; abducts leg

27
Q

Sartorius

A

Flexes hip and knee; laterally rotates thigh

28
Q

Biceps femoris

A

Extends hip, flexes knee, laterally rotates leg

29
Q

Semimembranosus

A

Extends hip, flexes knee

30
Q

Semitendinosus

A

Extends hip, flexes knee

31
Q

Vastus lateralis, medialis, and intermedius

A

Extends knee

32
Q

Rectus femoris

A

Extends knee, flexes hip

33
Q

Gastrocnemius

A

Plantar flexion at ankle; flexes knee

34
Q

Tibialis anterior

A

Dorsiflexion and inversion