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Anatomy > Upper limb origins and insertion > Flashcards

Upper limb origins and insertion Flashcards

1
Q

Trapezius origin and insertion

A

origin: superior nuchal line, external occipital protuberance, medial margin of the ligamentum nuchae, spinous process of CVII to TXII and related supraspinaous ligaments

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2
Q

Trapezius innervation

A

Sensor nerve; cranial nerve XI

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3
Q

Trapezius function

A

elevates scapula,
rotates scapula during abduction of humerous above horizontal,
middle fibers retract scapula. lower fibers depress scapula

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4
Q

Deltoid origin and insertion

A

Origin: lateral margin of acromion, spine of scapula; lateral 1/3 of clavical

Insertion: deltoid tuberosity

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5
Q

Deltoid innervation

A

axillary nerve (C5-C6)

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6
Q

Deltoid action

A

ABduction, posterior fibers cause extension and anterior fibers flexion

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7
Q

Levator scapulae origin and insertion

A

origin: Transferse process of C1-C2 and posterior tubercales of transfer process of C3-C4

Insertion: posterior surface of medial border of scapula from superior angle to root of spine of the scapula

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8
Q

Levator scapulae innervation

A

branches directly from anterior rami C3-C4 and branches from C 5 of dorsal scapular nerve

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9
Q

Levator scapulae action

A

elevates scapula

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10
Q

Rhomboid minor origin and insertion

A

Origin: lower end of ligaments nuchael and spinous processes of C7-T1 vertabrae

Insertion: posterior surface of medial border of scapula at the root of the spine of the scapula

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11
Q

Rhomboid minor innervation

A

dorsal scapular nerve (C4-C5)

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12
Q

Rhomboid minor action

A

elevates and retracts the scapula

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13
Q

Rhomboid major origin and insertion

A

origin: spinous process of T2-T5
Insertion: posterior surface of medial border of scapula from the root of the spine of the scapula to the inferior angle

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14
Q

Rhomboid major innervation

A

dorsal scapular nerve (C4-C5)

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15
Q

Rhomboid major action

A

elevates and retracts the scapula

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16
Q

Supraspinatus origin and insertion

A

Origin: medial two thirds of supraspinous fossa

insertion: greater tubercle of humerous

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17
Q

supraspinatus innervation

A

suprascacular nerve (C5-C6)

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18
Q

infraspinatus origin and insertion

A

origin: infraspinus fossa of scapula
insertion: greater tubercle of humorous

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19
Q

infraspinatus innervation

A

suprascpular nerve (c5-c6)

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20
Q

teres minor origin and insertion

A

origin: lateral border of scapula
insertion: grater tuberacle of humerus

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21
Q

teres minor innervation

A

axillary nerve (c5-c6)

22
Q

teres minor action

A

rotator cuff muscle; lateral rotation of arm at glenohumeral joint

23
Q

teres major origin and insertion

A

origin: elongate oval area on the posterir surface of the inferior angle of the scapula
insertion: medial lip of the intertubecular groove on anterior surface of the humerus

24
Q

teres major innervation

A

inferior scapular nerve C5-C7

25
Q

Teres major action

A

medial rotation and extension of arm at the shoulder joint

26
Q

long head of triceps origin and insertion

A

origin: infraglenoid tuberacle of scapula
insertion: common tendon insertion with medial and lateral heads on the olecranon process of ulna

27
Q

long head of triceps innervation

A

radial nerve (c6-C8)

28
Q

triceps action

A

extension of arm at shoulder and elbow

29
Q

name the borders and contents of the quadrangular space

A

borders: inferior margin of teres minor, surgical neck of humerus, superior margin of the teres major, latearl margin of the long head of tricepts brachii
contents: acial nerve and posterior circumflex humeral artery and vein

30
Q

name the borders and contents of the triangular space

A

border: medial border of triceps, teres major, teres minor

contents

circumflex scapular artery and vein

31
Q

name the borders and contents of the triangular interval

A

borders: lateral margin of long head of tricepts, shaft of humerus, inferior margin of the teres major
contents: radial artery and profunda brachii artery (deep artery of arm)

32
Q

pectoralis major origin and insertion

A

origin clavicular head - anterior surface of medial half of claviacal, sternocostal head, anterior surface of sternum, first seven costal cartilages, sternal end of sixth rib, aponeurosis of external oblique

insertion: lateral lip of intertubecular grove on anterior surface of humerus

33
Q

pectoralis major innervation

A

medial and lateral pectoral nerve

34
Q

pectoralis major action

A

flexion, adduction, medial rotation of arm at shoulder

35
Q

subclavius origin and insertion

A

origin: first rib at junction between rib and costal cartilage
insertion: groove on inferior surface of middle one third of clavicle

36
Q

subclavius nerve

A

nerve to the subclavius

37
Q

pectoralis minor

A

origin: anterior surfaces and superior borders of ribs 3-5
insertion: coracoid process

38
Q

pectoralis minor innervation

A

medial pectoral nerve

39
Q

pectoralis minor action

A

pulls top of shoulder down and protracts scapula

40
Q

subscapularis origin and insertion

A

origin: medial two thirds of subscapular fossa

insertion: lesser tuberacle of humerus

41
Q

subscapularis innervation

A

upper and lower subscapular nerves (c5-7)

42
Q

lattisimus dorsi origin and insertion

A

origin: spinus processes of lower six thoracic vertebrae, throacolumbar fascia lower ribs 3-4
insertion: floor of the intertubecular groove of the anterior surface of the humerus

43
Q

latissimus dorsi innervation

A

thoracodorsal nerve (C6-8)

44
Q

lattisimus dorsi action

A

medial rotation, extension, adduction

45
Q

origin and insertion of biceps brachii

A

origin: long head is subraglenoid tuberacle of scapula, short head is coracoid process
insertion: tuberosity of radius

46
Q

biceps brachii innervation

A

musculocutaneous nerve (c5-c6)

47
Q

coracobrachialis origin and insertion

A

origin: coracoid process
insertion: linear roughening of midshaft of humerus medial side

48
Q

coracobrachialis innervation

A

musculocutaneous (c5-c6)

49
Q

coracobrachialis action

A

adduction, flexor of arm at shoulder

50
Q

brachialis origin and insertion

A

origin: anterior aspect of humerus
insertion: tuberosity of ulna

51
Q

brachialis innervation

A

muculocutanous c5=c6

52
Q

brachialis action

A

major flexor

Anatomy (4 decks)

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