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Anatomy Lab > Quiz 6 (Posterior muscles) > Flashcards

Quiz 6 (Posterior muscles) Flashcards

1
Q

splenius capitis: N

A

cervical spinal nerve

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2
Q

Erector spinae: A

A

Prime mover of back extension

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3
Q

Trapezius: O

A

occipital bone, ligamentum nuchae, and spinous process of C7-T12

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4
Q

Trapezius: I

A

Spine and acromion of scapula, lateral 1/3 of clavicle

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5
Q

Trapezius: A

A

stabilizes, elevates, retracts, depresses and/or rotates scapula

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6
Q

Trapezius: N

A 
accessory never (CN XI)
spinal nerves C3-C4
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7
Q

Levator scapulae: O

A

transverse processes of C1-C4

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8
Q

Levator scapulae: I

A

superior vertebral border of scapula

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9
Q

Levator scapulae: N

A

spinal nerves C3-C5

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10
Q

Rhomboideus major: O

A

Spinous process of T2-T5

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11
Q

Rhomboideus major: I

A

Medial boarder of scapula from spine to inferior angle

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12
Q

Rhomboideus major: A

A

Adducts scapula and performs downward rotation of scapula

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13
Q

Rhomboideus major: N

A

Spinal nerve C5 (via dorsal scapular nerve)

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14
Q

Rhomboideus minor: O

A

Spinous process of C7-T1

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15
Q

Rhomboideus minor: I

A

Medial border of scapula, superior to rhomboideus major

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16
Q

Rhomboideus minor: A

A

adducts scapula and performs downwards rotation of scapula

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17
Q

Rhomboideus minor: N

A

Spinal nerve C5 (via dorsal scapular nerve)

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18
Q

Teres major: O

A

inferior angle of scapula

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19
Q

Teres major: I

A

intertubercular groove of humerus

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20
Q

Teres major: A

A

extension, medial rotation, and adduction of arm

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21
Q

Teres major: N

A

subscapular nerve

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22
Q

Latissimus dorsi: O

A

Spines of T7-L5
ribs 8-12
iliac crest
thoracolumbar fascia

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23
Q

Latissimus dorsi: I

A

intertubercular groove of humerus

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24
Q

Latissimus dorsi: A

A

prime arm extensor: adduction and medial rotation at the shoulder: depresses shoulder

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25
Q

Latissimus dorsi: N

A

Thoracodorsal nerve (C6-C8)

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26
Q

Muscles of the rotator cuff

A

supraspinatus
infraspinatus
subscapularis
teres minor

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27
Q

Supraspinatus: O

A

Supraspinous fossa of scapula

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28
Q

Supraspinatus: I

A

greater tubercle of humerus

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29
Q

Supraspinatus: A

A

stabilizes shoulder joint: abducts arm

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30
Q

Supraspinatus: N

A

Suprascapular nerve

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31
Q

Infraspinatus: O

A

infraspinous fossa of scapula

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32
Q

Infraspinatus: I

A

greater tubercle of humerus

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33
Q

Infraspinatus: A

A

stabilizes shoulder joint, laterally rotates arm

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34
Q

Infraspinatus: N

A

suprascapular nerve

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35
Q

Subscapularis: O

A

subscapular fossa of scapula

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36
Q

Subscapularis: I

A

lesser tubercle of humerus

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37
Q

Subscapularis: A

A

prime medial rotator of arm, stabilizes shoulder joint

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38
Q

Subscapularis: N

A

subscapular nerve

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39
Q

Teres minor: O

A

Lateral scapular border

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40
Q

Teres minor: I

A

greater tubercle of humerus

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41
Q

Teres minor: A

A

stabilizes shoulder joint, laterally rotates arm

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42
Q

Teres minor: N

A

axillary nerve

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43
Q

Triceps brachii: O (all three heads)

A

Long head: infraglenoid tubercle of scapula
Lateral head: proximal end of lateral humeral margin
Medial head: distal to radial groove on posterior humeral shaft

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44
Q

Triceps brachii: I

A

olecranon process of ulna

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45
Q

Triceps brachii: A

A

prime extensor of forearm: extends arm

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46
Q

Triceps brachii: N

A

radial nerve

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47
Q

Anconeus: O

A

lateral epicondyle of humerus

48
Q

Anconeus: I

A

lateral aspect of olecranon process of ulna

49
Q

Anconeus: A

A

abduction of ulna during forearm pronation, forearm extensor

50
Q

Anconeus: N

A

radial nerve

51
Q

Flexor carpi radialis: N

A

median nerve

52
Q

palmaris longus: N

A

Median nerve

53
Q

How many people have unilateral absence of the palmaris longus

A

15%

54
Q

how many people have bilateral absence of the palmaris longus

A

9%

55
Q

flexor carpi ulnaris: N

A

ulnar nerve

56
Q

flexor pullicis longus: N

A

median nerve

57
Q

flexor digitorum superficialis: N

A

median nerve

58
Q

flexor digitorum profundus: N

A

Medial half-ulnar nerve

lateral half-median nerve

59
Q

flexor wrist band

A

flexor retinaculum

60
Q

Gluteus maximus: O

A

dorsal ilium, sacrum coccyx, and lumbodorsal fasica

61
Q

Gluteus maximus: I

A

gluteal tuberosity of femur and iliotibial tract

62
Q

Gluteus maximus:A

A

Major thigh extensor

lateral rotation of thigh

63
Q

Gluteus maximus: N

A

Inferior gluteal nerve

64
Q

Gluteus medius: O

A

Anterior iliac crest of ilium between posterior and anterior gluteal lines

65
Q

Gluteus medius: I

A

greater trochanter of femur

66
Q

Gluteus medius: A

A

abduction and medial rotaion of thigh

steadies pelvis

67
Q

Gluteus medius: N

A

superior gluteal nerve

68
Q

Gluteus minimus: O

A

lateral surface of ilium between inferior and anterior gluteal lines

69
Q

Gluteus minimus: I

A

greater trochanter of the femur

70
Q

Gluteus minimus: A

A

abduction and medial rotation of thigh

steadies pelvis

71
Q

Gluteus minimus: N

A

Superior gluteal nerve

72
Q

Note the emergence of the sciatic nerve

A

between the piriformis and superior gemellus

73
Q

Piriformis: O

A

anterolateral surface of sacrum

74
Q

Piriformis: I

A

greater trochanter of femur

75
Q

Piriformis: A

A

Abduction (when thigh flexed) and lateral rotation of thigh

76
Q

Piriformis: N

A

Spinal nerves L5-S2

77
Q

Superior gemellus: O

A

ischial spine

78
Q

Superior gemellus: I

A

medial surface of greater trochanter of the femur

79
Q

Superior gemellus: A

A

lateral rotation of thigh

abduction (when thigh flexed)

80
Q

Superior gemellus: N

A

Spinal nerves L5-S1

81
Q

Obturator internus: O

A

obturator membrane, and obturator foramen

82
Q

Obturator internus: I

A

greater trochanter of femur

83
Q

Obturator internus: A

A

lateral rotation of thigh

84
Q

Obturator internus: N

A

Spinal nerves L5-S1

85
Q

Inferior gemellus: O

A

ischial tuberosity

86
Q

Inferior gemellus: I

A

medial surface of greater trochanter of femur

87
Q

Inferior gemellus: A

A

lateral rotation of thigh

abduction of thigh (when flexed)

88
Q

Quadratus femoris: O

A

ischial tuberosity

89
Q

Quadratus femoris: I

A

intertrochanteric crest of femur

90
Q

Quadratus femoris: A

A

lateral rotation of thigh

91
Q

Quadratus femoris: N

A

Spinal nerves L5-S1

92
Q

Muscles of the hamstrings

A

biceps femoris X 2
semitendenosus
semimembranosus

93
Q

Biceps femoris: O (both heads)

A

Long head: ischial tuberosity

Short head: linea aspera and distal femur

94
Q

Biceps femoris: I

A

head of fibula and lateral condyle of tibia

95
Q

Biceps femoris: A

A

Extension of thigh

flexion and lateral rotation of leg

96
Q

Biceps femoris: N

A

Sciatic nerve

97
Q

Semitendinosus: O

A

ischial tuberosity

98
Q

Semitendinosus: I

A

medial aspect of proximal tibial shaft

99
Q

Semitendinosus: A

A

extension of thigh

flexion and medial rotation of leg

100
Q

Semitendinosus: N

A

sciatic nerve

101
Q

Semimembranosus: O

A

ischial tuberosity

102
Q

Semimembranosus: I

A

medial condyle of the tibia

103
Q

Semimembranosus: A

A

extension of thigh

flexion and medial rotation of leg

104
Q

Semimembranosus: N

A

Sciatic nerve

105
Q

Muscles of the triceps surae

A

grastrocnemius (both heads)

soleus

106
Q

Grastrocnemius: N (both heads)

A

Lateral head: Tibial nerve

Medial head: Tibial nerve

107
Q

Soleus: N

A

Tibial nerve

108
Q

Plantaris: N

A

Tibial nerve

109
Q

Popliteus: N

A

Tibial nerve

110
Q

Flexor digitorum longus: N

A

Tibial nerve

111
Q

Tibialis posterior: N

A

Tibial nerve

112
Q

Flexor hallucis longus: N

A

Tibial nerve

113
Q

dense fascia on posterior aspect of ankle

A

flexor retinaculum

114
Q

Calcaneal tendon

A

Large tendon on the back of the heel

115
Q

Rotator cuff (3)

A

circle of tendons around glenohumeral joint
purpose to strengthen glenohumeral joint (support)
composed of 4 different muscles

116
Q

Thickest nerve in the body

A

sciatic nerve

117
Q

Two nerves that make up the sciatic nerve

A

tibial nerve

common peroneal nerve

Anatomy Lab (12 decks)

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