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anatomy > muscles of the upper limbs > Flashcards

muscles of the upper limbs Flashcards

1
Q

pectoralis major muscle origin

A

clavicle ,sternum and upper six costal cartilliages

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2
Q

pectoralis major insertion

A

lateral lip of the bicipetal groove of the humerus

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3
Q

nerve supplyof pectorlais major

A

lateral and medial pectoral nerve

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4
Q

action of pectoralis major

A

adduction of the shoulder and medial rotation

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5
Q

pectoralis minor origin

A

third fourth and fifth ribs

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6
Q

pectoralis minor insertion

A

coracoid process of scapula

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7
Q

pectoralis minor nerve supply

A

medial pectoral nerv e

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8
Q

action of pectoralis minor

A

stabalization and protraction of scapula

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9
Q

subcalvious origin

A

first costal cartilage

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10
Q

subcalvious insertion

A

inferior surface of clavicle

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11
Q

subcalvious nerve supply

A

nerve to subcalvion

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12
Q

action of subcalvious

A

depresses and stablizes the clavicle

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13
Q

serratus anterior musle origin

A

upper 8 or 9 ribs

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14
Q

insertion of serratus anterior muscle

A

medial borde and inferior angle of scapula

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15
Q

nerve supplyof serratus anterior

A

long thoracic nerve

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16
Q

action of serratus anterior muscle

A

moves teh scapula forward around the thorcic wall; rotates teh scapula

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17
Q

deltoid origin

A

lateral third of teh clavicle, acromoin and the lower surface of the spine of the scapula

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18
Q

deltoid insertion

A

deltoid tuberosity

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19
Q

deltoid innervation

A

axillary nerve

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20
Q

deltoid acton

A

middle fibers: abducts the shoulder
anterior fibers:flexes the shoulder
posterior fibers; extension of the shoulder

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21
Q

origin of trapezius

A

ligamentum nuchae
skull-external occipital protuberance
verteberae spines of C7-T12

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22
Q

insertionn of trapezius

A

clavicle lateral 1/3
scapula- acromoin and spine

23
Q

innervation of trapezius

A

accessory

24
Q

action of trapezius

A

extends the head
retracts the scapula
elevates the shoulder (upper fibers)
depresses the shoulder (lower fibers)

25
Q

origin of latissmus dorsi

A

vertebrae spines T6-T12
pelvic bone- lilac crest
thoracolumbar fascia

26
Q

insertion of latissmus dorsi

A

floor of the bicipital groove

27
Q

innervation of latissmus dorsi

A

thoracodorsal nerve

28
Q

action of latissmus dorsi

A

adducts extends and medially rotates the shoulder

29
Q

supraspinatous origin

A

supraspinous fossa of scapula

30
Q

supraspinatous insertion

A

greater tuberosity of humerus and capsule of the joint

31
Q

supraspinatous nerve supply

A

suprascapular nerve

32
Q

supraspinatous action

A

abducts the arm and stablizes theshoulder joint

33
Q

infraspinatous origin

A

infraspinous fossa of scapula

34
Q

infraspinatous insertion

A

greater tuberosity of humerus capulse of the shoulder joint

35
Q

infrapsinatous nerve supply

A

suprascapular nerve

36
Q

infraspinatous action

A

laterally rotates the arm and stablizes the shoulder joint

37
Q

teres major origin

A

lower tird of teh lateral border of scapula

38
Q

teres major insertion

A

medial lip of the bicipital groovre of the humerus

39
Q

teres major nerve supply

A

lower subscapular nerve

40
Q

teres major action

A

medial rotation and adducts the arm and stablizes the joint

41
Q

teres minor origin

A

upper two thirds of the lateral border of scapula

42
Q

teres minor insertion

A

greater tuberosity of humerud and capsule of the joint

43
Q

teres minor innervation

A

axillar nerve

44
Q

teres minor action

A

lateral rotation and stablizes the shoulder joint

45
Q

subscalpularis origin

A

subscalpular fossa

46
Q

subscalpularis insertion

A

lesser tuberosity of humerus

47
Q

subscalpularis nerve supply

A

upper and lower subscalpular nerve

48
Q

subscalpularis action

A

medially rotates the arm and stablizes the shoulder joint

49
Q

subscalpularis action

A

medially rotates the arm and stablizes the shoulder joint

50
Q

levator scapulae origina nd insertion

A

origin: C1-C4 transverse processes
insertion : medial border and superior angle of scapula

51
Q

rhomboid minor o and i

A

o: C7 and T1
i: medial border of scapula

52
Q

rhomboid major o and i

A

o: T2-T5
i: medial border of scapula to the inferior angle of the scapula

53
Q

levator scapulae, rhomboid minor and major nerve supply and action

A

nerve supply: dorsal scapular nerve
action: elevate and adduct the scapula

anatomy (36 decks)

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