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Anatomy DPT 7015 > Week 3 > Flashcards

Week 3 Flashcards

1
Q

External Oblique Origin

A

5th-12th ribs

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2
Q

External oblique Insertion

A

Linea alba
pubic tubercle
anterior iliac crest

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3
Q

External Oblique Innervation

A 
Intercostal nn (T7-T11)
Subcostal n (T12)
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4
Q

External Oblique Action

A

Unilateral: Bends trunk to same side, rotates trunk to opposite side

Bilateral: Flexes trunk, compresses abdomen, stabilizes pelvis

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5
Q

Internal Oblique Origin

A

Thoracolumbar fascia
iliac crest
anterior superior iliac spine
iliopsoas fascia

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6
Q

Internal Oblique Insertion

A

10th-12th ribs

Linea alba

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7
Q

Internal Oblique Innervation

A

Intercostal nn
Subcostal n (T12)
Iliohypogastrc n
ilioinguinal n

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8
Q

Internal Oblique Action

A

Unilateral: Bends trunk to same side, rotates trunk to opposite side

Bilateral: Flexes trunk, compresses abdomen, stabilizes pelvis

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9
Q

Transversus Abdominis Origin

A 
7th-12th costal cartilages
thoracolumbar fascia 
iliac crest 
anterior iliac spine 
iliopsoas fascia
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10
Q

Transversus abdominis Insertion

A

Linea alba

Pubic Crest

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11
Q

Transversus abdominis Innervation

A

Intercostal nn
Subcostal n (T12)
Iliohypogastrc n
ilioinguinal n

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12
Q

Transversus Abdominis Action

A

Unilateral: Rotates trunk to same side

Bilateral: compresses abdomen

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13
Q

Rectus Abdominis Origin

A

Lateral Head: Crest of pubis to pubic tubercle

Medial Head: Anterior region of pubic symphysis

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14
Q

Rectus Abdominis Insertion

A

Cartilages of 5th-7th ribs

xiphoid process of sternum

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15
Q

Rectus Abdominis Innervation

A 
Intercostal nn (T5-T11)
Subcostal n (T12)
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16
Q

Rectus Abdominis Action

A

Flexes trunk
Compresses abdomen
stabilizes pelvis

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17
Q

Pyramidalis origin

A

Pubis

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18
Q

Pyramidalis insertion

A

Linea alba

runs within rectus sheath

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19
Q

Pyramidalis innervation

A

Subcostal n

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20
Q

Pyramidalis Action

A

Tenses Linea Alba

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21
Q

Psoas Minor Origin

A

T12
L1 Vertebrae
Intervertebral disk (lateral surface)

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22
Q

Psaos Minor Insertion

A

Pectineal Line
Iliopubic ramus
iliac fascia
(Lowermost fibers may reach inguinal lig)

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23
Q

Psoas Minor Innervation

A

L1
L2
L3 spinal nerves

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24
Q

Psaos Minor Action

A

Weak Flexor of Trunk

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25
Q

Psaos Major Origin

superficial layer

A

T12-L4 vertebral bodies and associated intervertebral disks

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26
Q

Psaos Major Insertion

superficial layer

A

Femur (lesser trochanter)

joint insertion as iliopsoas muscle

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27
Q

Psoas major innervation

superficial layer

A

L1, L2, L3

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28
Q

Psaos Major Action

superficial layer

A

Hip Joint: flexion and external rotation Lumbar spine (Femur fixed)

Unilateral: Contraction bends trunk laterally

Bilaterally: Contraction raises trunk from supine position

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29
Q

Psoas Major Origin

deep layer

A

L1-L5 (costal processes)

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30
Q

Psoas Major Insertion

deep layer

A

Femur (greater Trochanter)

Joint insertion as iliopsoas muscle

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31
Q

Psoas Major innervation

deep layer

A

L1, L2, L3

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32
Q

Psaos Major Action

deep layer

A

Hip Joint: flexion and external rotation Lumbar spine (Femur fixed)

Unilateral: Contraction bends trunk laterally

Bilaterally: Contraction raises trunk from supine position

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33
Q

Iliacus Origin

A

Iliac Fossa

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34
Q

Iliacus Insertion

A

Femur (Lesser Trochanter)

Joint insertion as iliopsoas muscle

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35
Q

Iliacus Innervation

A

Femoral n (L2-L4)

36
Q

Iliacus Action

A

Hip Joint: flexion and external rotation Lumbar spine (Femur fixed)

Unilateral: Contraction bends trunk laterally

Bilaterally: Contraction raises trunk from supine position

37
Q

Quadratus Lumborum Origin

A

Iliac Crest

Iliolumbar ligament

38
Q

Quadratus Lumborum insertion

A

12th rib

L1-L4 vertebrae (costal process)

39
Q

Quadratus Lumborum Innervation

A 
Subcostal n (T12)
L1-L4
40
Q

Quadratus Lumborum Action

A

Unilateral: Bends trunk to same side

Bilateral: bearing down and expiration, stabilizes 12th rib

41
Q

Levator ani. origin

Puborectalis

A

Superior pubic ramus (both sides of pubic synthesis)

42
Q

Levator ani. origin

Puboacoccygenus

A

Pubis

lateral to origin of puborectalis

43
Q

Levator ani. origin

Iliococcygeneus

A

Internal obturator fascia of levator ani

tendinous arch

44
Q

Levator ani Insertion

Puborectalis

A

Anococcygeal lig.

45
Q

Levator ani Innervation

Puborectalis

A

nerve to levator ani (S4)

Inferior rectal n

46
Q

Levator ani Action

Puborectalis

A

Pelvic diaphragm: Supports pelvic viscera

47
Q

Levator ani insertion

Pubococcygeus

A

Anococcygeal Lig.

coccyx

48
Q

Levator ani innervation

Pubococcygeus

A

Nerve to levator ani (S4)

Inferior Rectal n.

49
Q

Levator ani Action

Pubococcygeus

A

Pelvic diaphragm: Supports pelvic visceral

50
Q

Levator ani insertion

iliococcygeus

A

Anococcygeal LIg.

Coccyx

51
Q

Levator ani innervation

iliococcygeneus

A

Nerve to levator ani (S4)

Inferior rectal n.

52
Q

Levator ani Action

iliococcygeus

A

Pelvic diaphragm: Supports Pelvic Viscera

53
Q

Coccygeus origin

A

Lateral surface of coccyx and S5 segment

54
Q

Coccygeus Insertion

A

Ischial Spine

55
Q

Coccygeus innervation

A

Direct branches from sacral plexus (S4-S5)

56
Q

Coccygeus Action

A

Supports pelvic viscera

flexes coccyx

57
Q

Piriformis origin

A

Sacrum (pelvic surface)

58
Q

Piriformis Insertion

A

Femur (apex of greater trochanter)

59
Q

Piriformis Innervation

A

Direct branches from sacral plexus (S1-S2)

60
Q

Piriformis Action

A

Hip Joint: External Rotation, Stabilization, and abduction of flexed hip

61
Q

Obturator internus origin

A

Obturator membrane and bony boundaries (inner surface)

62
Q

Obturator internus insertion

A

Femur (greater trochanter, medial surface)

63
Q

Obturator internus innervation

A

Direct branches of sacral plexus (L5-S1)

64
Q

Obturator Internus Action

A

Hip Joint: External Rotation and abduction of flexed hip

65
Q

Ischiocavernosus Origin

A

ischial ramus

66
Q

Ischiocavernosus insertion

A

Crus of clitoris or penis

67
Q

Ischiocavernosus innervation

A

Pudendal n (S2-S4)

68
Q

Ischiocavernosus Action

A

Maintains erection by squeezing blood into corpus cavernosum of clitoris or penis

69
Q

Bulbospongiosus Origin

A

Runs anteriorly from perineal body to clitoris or penile raphe

70
Q

Bulbospongiosus insertion

A

Runs anteriorly from perineal body to clitoris or penile raphe

71
Q

Bulbospongiosus innervation

A

Pudendal n (S2-S4)

72
Q

Bulbospongiosus Action

A

Females: Compresses greater vestibular gland

Males: assists in erection

73
Q

Superficial Transverse Perineal origin

A

Ischiopubic ramus

74
Q

Superficial Transverse Perineal insertion

A

Perineal Body

75
Q

Superficial Transverse Perineal innervation

A

Pudendal n (S2-S4)

76
Q

Superficial Transverse Perineal action

A

Helps hold perineal body in median plane
Holds the pelvic organs in place
supports visceral canals through the muscles of the perineum

77
Q

Deep Transverse Perineal Origin

A

Ishiopubic Ramus

78
Q

Deep Transverse Perineal Insertion

A

Perineal Body

External and Sphincter

79
Q

Deep Transverse Perineal Innervation

A

Pudendal n (S2-S4)

80
Q

Deep Transverse Perineal Action

A

Helps hold perineal body in median plane
Holds the pelvic organs in place
supports visceral canals through the muscles of the perineum

81
Q

External Urethral Sphincter Origin and Insertion

A

Encircles Urethra (division of deep transverse perineal muscles)
Males: ascends anteriorly to neck of bladder
Females: some fibers surround vagina as Urethrovaginal sphincter, others extend laterally as the compressor urethrae

82
Q

External Urethral Sphincter innervation

A

Pudendal n (S2-S4)

83
Q

External Urethral Sphincter Action

A

Closes Urethra

84
Q

External anal Sphincter origin and insertion

A

Encircles anus (runs posteriorly from perineal body to anococcygeal lig)

85
Q

External anal Sphincter innervation

A

Pudendal n (S2-S4)

86
Q

External anal Sphincter Action

A

Close Anus

Anatomy DPT 7015 (1 decks)

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