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ANATOMY > Muscle action and function > Flashcards

Muscle action and function Flashcards

1
Q

Biceps brachii

A

Anterior compartment of arm, flexes the formearm

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2
Q

Triceps brachii

A

Posterior compartment of arm, extends the foremarm

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3
Q

Hamstrings

A

group of three muscles in the posterior compartment of the thigh, flexes the leg

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4
Q

Quadriceps femoris

A

Groups of four muscles in the anterior compartment of the thigh, extends the leg

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5
Q

Flexor digitorum superficialis and flexor digitorum profundus

A

Anterior compartment of the forearm, flex the fingers and hand at the wrist

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6
Q

Extensor digitorum

A

Posterior compartment of the forearm, extends the fingers and the hand at the wrist

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7
Q

Occipital-frontalis frontal side

A

Raises/ furrow brow

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8
Q

Occipital-frontalis occipital side

A

Unfurrow brow

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9
Q

Currugator superciliii

A

Draws eyebrows medially and downward; frowning

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10
Q

Nasalis muscle

A

At the maxilla and widens nostrils

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11
Q

Levator labii superioris

A

Mouth muscle and raises upper lip

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12
Q

Depressor labii inferioris

A

Draws lower lip downward

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13
Q

Depressor angulus oris

A

Opening mouth and sliding lower jaw left and right

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14
Q

Zygomaticus major

A

Draws angle of the mouth upward and laterally, smiling

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15
Q

Orbicularis oris

A

Shaping of lips like during speech

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16
Q

Buccinator

A

Lateral movement of cheeks, like sucking on straws, compress air in mouth while blowing

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17
Q

Risorius

A

Draws angle of mouth laterally, expressing horror

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18
Q

Mentalis

A

Elevates and protrudes lower lip and skin of the chin

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19
Q

Extrinsic eye muscles

A

Move the eyeball and they originate from the bones of the orbit and insert onto the outer surface of the white of the eye

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20
Q

Superior rectus

A

Moves eyes up and toward nose

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21
Q

Inferior rectus

A

Moves eyes down and toward nose

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22
Q

Lateral rectus

A

Move eyes away from nose

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23
Q

Medial rectus

A

Moves eyes toward nose

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24
Q

Inferior oblique

A

Moves eyes up and away from nose, rotates eyeballs

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25
Q

Superior oblique

A

Moves eyes down and away from nose, rotates eyeballs

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26
Q

Levator palpabrae superioris

A

Opens eyes

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27
Q

Orbicularis oculi

A

Closes eyelids

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28
Q

Masseter

A

Closes mouth and aids chewing, elevates

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29
Q

Temporalis

A

Closes mouth, pulls lower jaw in under upper jaw, elevates and retracts

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30
Q

Lateral pterygoid

A

Opens mouth, pushes lower jaw out under upper jaw, moves lower jaw side to side, depressor

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31
Q

Medial pterygoid

A

Closes mouth, pushes lower jaw out under upper jaw, moves jaw upper side to side

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32
Q

Glenioglossus

A

Draws tongue to one side, depresses midline of tongue or protrudes it

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33
Q

Styloglossus

A

Draws tongue upward and posteriorly

34
Q

hyoglossus

A

depress tongue

35
Q

palatoglossus

A

elevates roof of tongue, closes oral cavity from pharynx

36
Q

Sternocleidomastoid

A

Rotates and tilts head, tilts head forward

37
Q

Semispinalis capitis

A

Rotates and tilts head backward

38
Q

Spelnius capitis

A

Rotates and tilts head to the side, tilts head backward

39
Q

Longissiumus capitis

A

Rotates and tilts head to the side, tilts head backwards

40
Q

Moves scapulae = superficial

41
Q

Trapezius

A

Both elevates and depresses shoulder, retracts scapula and extends head

42
Q

Latissimus dorsi

A

Adducts, extends, and medially rotates arm

43
Q

Levator scapulae

A

Elevated and adducts scapula

44
Q

Rhomboid major and minor

A

Elevates and adducts scapula

45
Q

Levatores costarum

A

Raises ribs in inspiration

46
Q

Serratus posterior superior

A

Raises ribs in inspiration

47
Q

Serratus posterior inferior

A

Lower ribs in expiration

48
Q

Deep muscles= move back flexion and extension

49
Q

Splenius

A

Extend neck and head
connects to skull, capitis
cervicis connects to vertebrae

49
Q

Erector spinae

A

illiocostalis, longissimus, spinalis
extend trunk and vertebral column

50
Q

Transverso-spinalis

A

Semispinalis, multifidus and rotatores
Extend trunk and bilateral action and rotate vertebral column in unilateral action

51
Q

Extrinsic back muscles

A

Trapezius, levator scapulae, rhomboid minor and major, latissimus dorsi and serratous posterior

52
Q

Intrinsic back muscles

A

Splenius cavitis and cervicis, erector spinae (illiocostalis, longissimus, spinalis)

53
Q

External or internal oblique

A

Twisting at waist

54
Q

Transversus abdominus

A

Squeezing abdomen during forceful exhalations, defecation, urination and childbirth

55
Q

Rectus abdominis

A

Sitting up

56
Q

Quadratus lumborum

A

Bending to the side

57
Q

Diaphragm

A

Inhalation and exhalation, in between cervitis and thoracis cavities

58
Q

External intercostals

A

Helps with inhalation with ribs

59
Q

Internal intercostals

A

It was forced exhalation with ribs

60
Q

Levator ani pubococcygeus and ani iliococcygeus

A

Compresses anal canal, defacation, urination, birth, coughing

61
Q

Superficial transverse perineal

A

Only supports perineal body maintaining anus at center of perineum

62
Q

Bulbospongiosus

A

Involuntary response, compress urethra when excreting urine in both sexes, ejaculation and erection in males

63
Q

Ischiocavernosus

A

Compresses veins to maintain erection of penis in males, erection of clitoris in females

64
Q

External urethral sphincter

A

Voluntary compresses urethra during urination

65
Q

External anal sphincter

A

Closes anus

66
Q

Subclavius

A

Stabilizes clavicle during movement by depressing it

67
Q

Pectoralis minor

A

Rotates shoulder anteriorly

68
Q

Serratus anterior

A

Moves arm from side of body to front of body’ assists with inhalation

69
Q

Trapezius

A

Elevates shoulders, pulls shoulder blades together, tilts head backward

70
Q

Rhomboid major and minor

A

Stabilizes scapula during pectoral girdle movement

71
Q

Pectoralis major

A

adducts and medially rotates the arm axial muscle

72
Q

Latissimus dorsi

A

Adducts the arm, rotates the arm medially at the shoulder

73
Q

Deltoid

A

Abducts the arm

74
Q

Subscapularis

A

medially rotates arm, stabilizes shoulder joint

75
Q

Supraspinatus

A

Abducts the arm, stabilizes shoulder joint

76
Q

Infraspinatus

A

Rotates elbow laterally, tennis swing

77
Q

Teres major

A

Extends, medially rotates and adducts arm

78
Q

Teres minor

A

Rotates elbow laterally

79
Q

Coracobra chialis

A

Flexes and abducts arm

ANATOMY (10 decks)

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