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Anatomy DPT 7015 > Week 3 > Flashcards

Week 3 Flashcards

(86 cards)

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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
Psaos Major Origin | superficial layer
T12-L4 vertebral bodies and associated intervertebral disks
26
Psaos Major Insertion | superficial layer
Femur (lesser trochanter) | joint insertion as iliopsoas muscle
27
Psoas major innervation | superficial layer
L1, L2, L3
28
Psaos Major Action | superficial layer
Hip Joint: flexion and external rotation Lumbar spine (Femur fixed) Unilateral: Contraction bends trunk laterally Bilaterally: Contraction raises trunk from supine position
29
Psoas Major Origin | deep layer
L1-L5 (costal processes)
30
Psoas Major Insertion | deep layer
Femur (greater Trochanter) | Joint insertion as iliopsoas muscle
31
Psoas Major innervation | deep layer
L1, L2, L3
32
Psaos Major Action | deep layer
Hip Joint: flexion and external rotation Lumbar spine (Femur fixed) Unilateral: Contraction bends trunk laterally Bilaterally: Contraction raises trunk from supine position
33
Iliacus Origin
Iliac Fossa
34
Iliacus Insertion
Femur (Lesser Trochanter) | Joint insertion as iliopsoas muscle
35
Iliacus Innervation
Femoral n (L2-L4)
36
Iliacus Action
Hip Joint: flexion and external rotation Lumbar spine (Femur fixed) Unilateral: Contraction bends trunk laterally Bilaterally: Contraction raises trunk from supine position
37
Quadratus Lumborum Origin
Iliac Crest | Iliolumbar ligament
38
Quadratus Lumborum insertion
12th rib | L1-L4 vertebrae (costal process)
39
Quadratus Lumborum Innervation
``` Subcostal n (T12) L1-L4 ```
40
Quadratus Lumborum Action
Unilateral: Bends trunk to same side Bilateral: bearing down and expiration, stabilizes 12th rib
41
Levator ani. origin | Puborectalis
Superior pubic ramus (both sides of pubic synthesis)
42
Levator ani. origin | Puboacoccygenus
Pubis | lateral to origin of puborectalis
43
Levator ani. origin | Iliococcygeneus
Internal obturator fascia of levator ani | tendinous arch
44
Levator ani Insertion | Puborectalis
Anococcygeal lig.
45
Levator ani Innervation | Puborectalis
nerve to levator ani (S4) | Inferior rectal n
46
Levator ani Action | Puborectalis
Pelvic diaphragm: Supports pelvic viscera
47
Levator ani insertion | Pubococcygeus
Anococcygeal Lig. | coccyx
48
Levator ani innervation | Pubococcygeus
Nerve to levator ani (S4) Inferior Rectal n.
49
Levator ani Action | Pubococcygeus
Pelvic diaphragm: Supports pelvic visceral
50
Levator ani insertion | iliococcygeus
Anococcygeal LIg. | Coccyx
51
Levator ani innervation | iliococcygeneus
Nerve to levator ani (S4) | Inferior rectal n.
52
Levator ani Action | iliococcygeus
Pelvic diaphragm: Supports Pelvic Viscera
53
Coccygeus origin
Lateral surface of coccyx and S5 segment
54
Coccygeus Insertion
Ischial Spine
55
Coccygeus innervation
Direct branches from sacral plexus (S4-S5)
56
Coccygeus Action
Supports pelvic viscera | flexes coccyx
57
Piriformis origin
Sacrum (pelvic surface)
58
Piriformis Insertion
Femur (apex of greater trochanter)
59
Piriformis Innervation
Direct branches from sacral plexus (S1-S2)
60
Piriformis Action
Hip Joint: External Rotation, Stabilization, and abduction of flexed hip
61
Obturator internus origin
Obturator membrane and bony boundaries (inner surface)
62
Obturator internus insertion
Femur (greater trochanter, medial surface)
63
Obturator internus innervation
Direct branches of sacral plexus (L5-S1)
64
Obturator Internus Action
Hip Joint: External Rotation and abduction of flexed hip
65
Ischiocavernosus Origin
ischial ramus
66
Ischiocavernosus insertion
Crus of clitoris or penis
67
Ischiocavernosus innervation
Pudendal n (S2-S4)
68
Ischiocavernosus Action
Maintains erection by squeezing blood into corpus cavernosum of clitoris or penis
69
Bulbospongiosus Origin
Runs anteriorly from perineal body to clitoris or penile raphe
70
Bulbospongiosus insertion
Runs anteriorly from perineal body to clitoris or penile raphe
71
Bulbospongiosus innervation
Pudendal n (S2-S4)
72
Bulbospongiosus Action
Females: Compresses greater vestibular gland Males: assists in erection
73
Superficial Transverse Perineal origin
Ischiopubic ramus
74
Superficial Transverse Perineal insertion
Perineal Body
75
Superficial Transverse Perineal innervation
Pudendal n (S2-S4)
76
Superficial Transverse Perineal action
Helps hold perineal body in median plane Holds the pelvic organs in place supports visceral canals through the muscles of the perineum
77
Deep Transverse Perineal Origin
Ishiopubic Ramus
78
Deep Transverse Perineal Insertion
Perineal Body | External and Sphincter
79
Deep Transverse Perineal Innervation
Pudendal n (S2-S4)
80
Deep Transverse Perineal Action
Helps hold perineal body in median plane Holds the pelvic organs in place supports visceral canals through the muscles of the perineum
81
External Urethral Sphincter Origin and Insertion
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
External Urethral Sphincter innervation
Pudendal n (S2-S4)
83
External Urethral Sphincter Action
Closes Urethra
84
External anal Sphincter origin and insertion
Encircles anus (runs posteriorly from perineal body to anococcygeal lig)
85
External anal Sphincter innervation
Pudendal n (S2-S4)
86
External anal Sphincter Action
Close Anus

Anatomy DPT 7015 (1 decks)

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