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Anatomy and Physiology 2 > Muscle Functions of Upper Body > Flashcards

Muscle Functions of Upper Body Flashcards

1
Q

Buccinator

A

Compresses cheek, moves food beneath teeth, suction for suckling

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2
Q

Frontalis

A

Wrinkles forehead, elevates eyebrows

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3
Q

Levator Scapulae

A

Elevates scapula

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4
Q

Masseter

A

Elevates and protracts mandible

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5
Q

Occipitalis

A

Moves scalp backwards

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6
Q

Orbicularis oculi

A

Closes eye

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7
Q

Orbicularis oris

A

Close mouth, purse lips, speech

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8
Q

Platysma

A

Depresses mandible and lower lip

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9
Q

Semispinalis capitits

A

Extends neck, rotates, and tilts head

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10
Q

Splenius capitis

A

Turns head to side, extends neck

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11
Q

Sternocledidomastoid

A

Turns head to opposite side, bend neck laterally, if they both contract, the neck flexes

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12
Q

Temporalis

A

Elevates and retracts mandible

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13
Q

Trapezius

A

Extends head and neck, elevates, depresses, and adducts scapula, rotates scapula upward

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14
Q

Zygomaticus major/minor

A

Smile

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15
Q

Deltoid

A

Flexes and medially rotates arm, abducts arm, extends and laterally rotates arm

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16
Q

Diaphragm

A

Flattens to increase volume of thorax for inspiration

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17
Q

External abdominal oblique

A

Compresses abdomen, laterally flexes and rotates vertebral column

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18
Q

External intercostals

A

Elevates ribs for inspiration

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19
Q

Internal intercostals

A

Depresses ribs for expiration

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20
Q

Latissimus dorsi

A

Extends, adducts, and rotates arm medially

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21
Q

Pectoralis Major

A

Flexes, adducts and rotates arm medially

22
Q

Pectoralis Minor

A

Depresses and protracts shoulder

23
Q

Rectus abdominus

A

Flexes vertebral column, compresses abdomen, depresses rib cage and stabilize pelvis.

24
Q

Serratus anterior

A

Rotates scapula upward and laterally

25
Q

Iliacus

A

Flexes thigh at hip

26
Q

Internal abdominal oblique

A

Compresses abdomen, laterally flexes and rotates vertebral column

27
Q

Psoas major

A

Flexes thigh at hip, flexes vertebral column

28
Q

Erector spinae

A

Maintain posture, extend vertebral column and head, laterally flex vertebral column and head

29
Q

Rhomboideus Major and minor

A

Downward rotation and adduction of scapula

30
Q

Biceps Brachii

A

Flexes forearm, supinates forearm

31
Q

Brachialis

A

Flexes elbow

32
Q

Brachiordialis

A

Flexes elbow (When arm partially pronated) , supinates forearm

33
Q

Coracobrachialis

A

Adducts, medially rotates and flexes humerus at shoulder

34
Q

Infraspinatus

A

Lateral rotation of humerus

35
Q

Subscapularis

A

Abducts humerus

36
Q

Teres major

A

Extends, adducts and medially rotates humerus

37
Q

Teres minor

A

Lateral rotation and adduction of humerus

38
Q

Triceps brachii

A

Extends forearm

39
Q

Abductor pollicis longus

A

Abducts and extends thumb

40
Q

Extensor carpi radialis brevis

A

Extends and abducts wrist (wave)

41
Q

Extensor Carpi radialis longus

A

Extends and abducts wrist (Wave)

42
Q

Extensor carpi ulnaris

A

Extends and abducts wrist (wave)

43
Q

Extensor digitorum

A

Extends phalanges and hand

44
Q

Extensor pollicis brevis

A

Extends thumb

45
Q

Extensor pollicis longus

A

Extends thumb

46
Q

Flexor carpi radialis

A

flexes and abducts wrist (wave)

47
Q

Flexor carpi ulnaris

A

Flexes and adducts wrist (wave)

48
Q

Flexor digitorum profundus

A

Flexes phalanges

49
Q

Flexor pollicis longus

A

Flexes thumb

50
Q

Palmaris longus

A

Flexes wrist

51
Q

Pronator teres

A

Pronates fore arm

52
Q

Supinator

A

Supinates forearm

Anatomy and Physiology 2 (9 decks)

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