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Anatomy HK*3401 > Practical 1 > Flashcards

Practical 1 Flashcards

1
Q

Muscles in superior extrinsic shoulder

A

Trapezius
Latissimus dorsi

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2
Q

Trapezius origin

A

Base of skull
nuchal ligament
C7-T12

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3
Q

Trapezius insertion

A

lateral third of clavicle
acromion
spine of scapula

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4
Q

Trapezius action

A

elevate, depress, retract scapula
rotate glenoid cavity superiorly

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5
Q

Trapezius innervation

A

spinal accessory nerve

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6
Q

lat. dorsi origin

A

Spinous process of lower 6 thoracic vertebrae
iliac crest
Thoracolumbar fasica

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7
Q

lat dorsi insertion

A

the floor of the intertubercular groove

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8
Q

Lat dorsi action

A

medial rotation of humerus
Extend and adduct humerus
pull trunk to upper limbs for when climbing

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9
Q

lat. dorsi innervation

A

thoracodorsal nerve

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10
Q

Muscles of deep posterior extrinsic shoulder

A

Levator scapulae
Rhomboid major
Rhomboid minor

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11
Q

Origin levator scapulae

A

transverse process C1 - C4

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12
Q

insertion levator scapulae

A

medial border of scapula - above spine level

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13
Q

action levator scapulae

A

elevate scapula
rotate glenoid cavity inferiorly

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14
Q

Innervation levator scapulae

A

dorsal scapular nerve

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15
Q

Origin Rhomboid minor

A

spinous process C7 and T1

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16
Q

Insertion rhomboid minor

A

medial border of scapula at level of spine

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17
Q

Action rhomboid minor

A

retract scapula
rotate glenoid cavity inferiorly

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18
Q

Innervation rhomboid minor

A

Dorsal scapular nerve

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19
Q

Rhomboid major origin

A

spinous process T2- T5

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20
Q

Rule of deep posterior extrinsic muscles

A

4,2,2,4 rule

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21
Q

Insertion rhomboid major

A

medial border of scapula, level below spine

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22
Q

Innervation rhomboid major

A

dorsal scapular nerve

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23
Q

action rhomboid major

A

Retract scapula
rotate glenoid cavity inferiorly

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24
Q

Muscles of intrinsic shoulder

A

Deltoid
Teres major

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25
Q

Origin deltoid

A

lateral third of clavicle
acromion
Spine of scapula

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26
Q

Deltoid insertion

A

deltoid tuberosity

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27
Q

deltoid action

A

extend and flex humerus
medial and lateral rotation of humerus
abduct humerus

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28
Q

Deltoid innervation

A

axillary nerve

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29
Q

Teres major origin

A

posterior surface of scapula

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30
Q

Teres major insertion

A

intertubercular groove - medial lip

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31
Q

Teres major action

A

medial rotation of humerus
Adduct humerus

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32
Q

Teres major innervation

A

lower scapular nerve

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33
Q

Muscles in rotator cuff

A

Subscapularis
supraspinatus
infraspinatus
teres minor

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34
Q

subscapulris origin

A

subscapular fossa

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35
Q

subscapularis insertion

A

lesser tubercle of humerus

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36
Q

subscapularis action

A

medial rotation of humerus
stabilize shoulder

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37
Q

innervation subscapularis

A

upper subscapular nerve
lower subscapular nerve

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38
Q

supraspinatus origin

A

supraspinatus fossa

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39
Q

supraspinatus insertion

A

greater tubercle of humerous - superior facet

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40
Q

action supraspinatus

A

adduct humerus
stabilize shoulder

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41
Q

supraspinatus innervation

A

suprascapular nerve

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42
Q

origin infraspinatus

A

infraspinous fossa

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43
Q

Infraspinatus insertion

A

Greater tubercle - middle facet

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44
Q

Action infraspinatus

A

Lateral rotation of humerus
Stabilize shoulder

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45
Q

Infraspinatus innervation

A

Suprascapular nerve

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46
Q

Teres minor origin

A

Lateral border of scapula -superior portion

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47
Q

Teres minor insertion

A

Greater tubercle of humerus - inferior facet

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48
Q

Action teres minor

A

Lateral rotation of humerus
Stabilize shoulder

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49
Q

Teres minor innervation

A

Axillary nerve

50
Q

Anterior thoracoappendicular muscles

A

Pectoralis major
Pectoralis minor
Subclavius
Serratus anterior

52
Q

Pec major origin

A

Medial half of clavicle
Sternum

52
Q

Pec major insertion

A

Lateral lip of intertubercular groove

52
Q

Pec major action

A

Adducts and medical rotation of humerus

52
Q

Pec minor origin

A

Ribs 3 - 5

53
Q

Pec major innervation

A

Lateral and medial pectoral nerves

53
Q

Pec minor insertion

A

Coracoid process

54
Q

Pec minor action

A

Stabilize scapula

55
Q

Pec minor innervation

A

Lateral and medial Pectoral nerves

56
Q

Subclavius origin

A

Junction of rib 1 and its costal cartilage

57
Q

Subclavius insertion

A

Middle third of clavicle
Inferior surface

58
Q

Subclavius innervation

A

Nerve to Subclavius

59
Q

Subclavius action

A

Stabilize/anchor clavicle
Depress clavicle

60
Q

Serratus anterior Origin

A

Ribs 1 -8 lateral surface

61
Q

Serratus anterior insertion

A

anterior suface of scapula - medial border

62
Q

Serratus anterior innervation

A

long thoracic nerve

63
Q

serratus anterior action

A

protract and rotate scapula
holds scapila against thorax

64
Q

Intermediate extrinsic back muscles

A

Serratus posterior superior
Serratus posterior inferior

65
Q

Serratus posterior superior origin

A

spinous processes: C7 - T2

66
Q

Serratus posterior superior insertion

A

upper ribs

67
Q

Serratus posterior superior innevation

A

anterior rami

68
Q

Serratus posterior superior action

A

respiration?
proprioceptive function?

69
Q

Serratus posterior inferior origin

A

spinous processes T11 - L3

70
Q

Serratus posterior inferior insertion

A

lower ribs

71
Q

Serratus posterior innervation

A

Anterior rami

71
Q

Serratus posterior inferior action

A

respiration?
proprioceptive function?

72
Q

Superfical intrinsic back muscles

A

Splenius (Capitis and cervicis)

73
Q

Splenius origin

A

Nuchal ligament
spinous processes C7-T6

74
Q

Splenius insertion

A

capitis - mastoid process, superior nuchal line
cervicis - transverse processes ~C1 - C4

75
Q

Splenius innervation

A

posterior rami

76
Q

splenius action

A

lateral flexion of neck
rotation of head
Extension of head and neck

77
Q

Intermediate intrinsic back muscles

A

Erector spinae
- Iliocostalis
- longisssimus
- Spinalis

78
Q

Origin of erector spinae

A

common insertion for each muscle
- sacrum
- iliac crest
- spinous processes T11 - L5

78
Q

longissimus insertion

A

Ribs
Transverse processes of cervical and thoracic

79
Q

Iliocostalis insertion

A

angles of lower ribs

80
Q

Spinalis insertion

A

Spinous processes - cervical and thoracic

81
Q

innervation of erector spinae

A

posterior rami

82
Q

action of erector spinae

A

extend, laterally flex and stabilize vertebral column

83
Q

Deep intrinsic back muscles

A

Transversospinalis group
- semispinalis
- multifidus
- Rotatores

84
Q

Origin of Tranversospinalis

A

Transverse processes of all vertebrae

85
Q

Semispinalis insertion

A

spinous processes - cervical and thoracic
(4-6 segments)

86
Q

Multifitus insertion

A

Spinous processes - all vertebrae
( 2 - 4 segments)

87
Q

insertion rotatores

A

spinous processes - all vertebrae
( 1 -2 segments)

88
Q

Transversospinalis action

A

Extend, laterally flex/rotate and stabilize vertebral column

89
Q

innervation of transversospinalis group

A

posterior rami

89
Q

Deepest intrinsic back muscles

A

Segmental group
- Interspinalis
- intertransversarii
- levator costarum

90
Q

interspinales origin

A

Spinous processes of vertebrae

91
Q

Intertransversarii origin

A

transverse processes of vertebrae

92
Q

Levator costarum origin

A

transverse processes of thoracic vertebrae

92
Q

Inerspinales insertion

A

spinous process of vertebrae above origin

93
Q

intertransversarii insertion

A

transverse spinous process above origin

94
Q

segmental group innervation

A

posterior rami
intertransversarii - also anterior rami

95
Q

Levator costarum insertion

A

Ribs between tubercle and angle

96
Q

segmental group origin

A

extend, lateral flexion, stabilize vertebral column
Levator costarum : elevates ribs for breathing and lateral flextion of vertebral column

97
Q

Anterior compartment of arm muscles

A

Coracobrachialis
Biceps brachii
Brachialis

98
Q

Coracobrachialis origin

A

coracoid process

99
Q

Coracobrachialis insertion

A

Humerus - medial third, medial surface

100
Q

Coracobrachialis innervation

A

musculocutaneous nerve

101
Q

Coracobrachialis action

A

shoulder flextion and adduction

101
Q

Biceps brachii origin

A

Short head - coracoid process
long head - supraglenoid tubercle of scapula

102
Q

Biceps brachii innervation

A

musculocutaneous nerve

103
Q

Biceps brachii insertion

A

radial tuberosity

104
Q

Brachialis origin

A

distal half, anterior surface of humerus

104
Q

Biceps brachii action

A

Forearm supination
Elbow flextion

104
Q

Brachialis insertion

A

coronoid process of ulna - ulnar tuberosity

105
Q

Brachialis innervation

A

musculocutaneous nerve

106
Q

Brachialis action

A

elbow flexion

107
Q

Posterior compartment of arm muscle

A

Triceps brachii

108
Q

Triceps brachii origin

A

Long head: infraglenoid tubercle of scap
Lateral head: posterior surface if humerus, superior to radial groove
medial head: posterior surface of humerus, inferior to radial groove

109
Q

Triceps brachii insertion

A

olecranon of ulna

110
Q

Triceps brachii innervation

A

radial nerve

111
Q

Triceps brachii action

A

elbow extension

Anatomy HK*3401 (11 decks)

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