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Gross Anatomy > Back - origin, insertion, innervation, action > Flashcards

Back - origin, insertion, innervation, action Flashcards

(112 cards)

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1
Q

Insertion for trapezius

A

lateral third of clavicle
acromion
scapular spine

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2
Q

Innveration of trapezius

A 
Accessory nerve (CN XI)
C3-C4 cervical plexus
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3
Q

Actions of trapezius

A 
Evelvates scapula obliquely
Rotates glenoid cavity superiorly
Tilts head ipsilaterally
Rotates head contralaterally
Retracts scapula medially
Depresses scapula
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4
Q

Origin of latissimus dorsi

A 
spinous process of t7-t12
thoracolumbar fascia
inferior angle of scapula
9-12th ribs
iliac crest
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5
Q

Insertion of latissimus dorsi

A

floor of intertubercular sulcus of humerus

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6
Q

innervation of latissimus dorsi

A

thoracodorsal nerve c6-c8

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7
Q

actions of latissimuss dorsi

A

internal rotation
adduction
extension
respiration-cough muscle

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8
Q

origin of rhomboid major

A

spinous process of t2-t5

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9
Q

insertion of rhomboid major

A

medial border of scapula below scapular spine

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10
Q

innervation of rhomboid major

A

dorsalscapular nerve c4-c5

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11
Q

actions of rhomboid major

A

steadies scapula

elevates medially

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12
Q

origin of rhomboid minor

A

spinous process of c7-t1

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13
Q

insertion of rhomboid minor

A

medial border above scapular spine

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14
Q

innervation of rhomboid minor

A

dorsalscapular nerve c4-c5

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15
Q

actions of rhomboid minor

A

steadies scapula

Elevates medially

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16
Q

origin of levator scapular

A

transverse process of c1-c4

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17
Q

insertion of levator scapula

A

superior angle of scapula

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18
Q

innervation of levator scapula

A

dorsalscapular nerve c4-c5

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19
Q

levator scapular action

A

Raises scapula medially while moving inferior angle medially

inclines neck ilpsilaterally

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20
Q

origin serratus posterior superior

A

nuchal ligament

c7-t3 spinous process

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21
Q

insertion of serratus posterior superior

A

2-4th ribs superior border of ribs

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22
Q

innervation of serratus posterior superior

A

spinal nerve t2-t5 anterior rami

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23
Q

action of serratus posterior superior

A

elevates ribs

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24
Q

origin of serratus posterior inferior

A

t11-L2 spinous process

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25
insertion of serratus posterior inferior
8th-12th ribs inferior border near angles
26
innveration of serratus posterior inferior
spinal nerve t9-t12 anterior rami
27
actions of serratus posterior inferior
depresses ribs
28
what makes up the erector spinae
iliocostalis, longissimus, and spinalis
29
origin of iliocostalis cervicis
3rd-7th ribs
30
insertion of iliocostalis cervicis
c4-c6 transverse process
31
innervation of iliocostalis cervicis
spinal nerve c8-L1
32
action of iliocostalis cervicis
bilaterally-extends spine | unilaterally-bends spine laterally ipsilaterally
33
origin of iliocostalis thoracis
7th-12th ribs
34
insertion of iliocostalis thoracis
1st-6th ribs
35
innervation of iliocostalis thoracis
spinal nerve of c8-L1
36
action of ilicostalis thoracis
bilaterally-extends spine | unilaterally-bends spine laterally to the same side
37
origin of iliocostalis lumborum
sacrum, iliac crest, thoracolumbar fascia
38
insertion of iliocostalis lumborum
6th-12th ribs thoracolubar fascia upper lumbar vertebrae transverse processes
39
innervation of iliocostalis lumborum
spinal nerves c8-L1
40
actions of iliocostalis lumborum
bilaterally-extends spine | unilaterally-bends spine laterally ipsilaterally
41
Origin of trapezius
external occipital protuberance nuchal ligament T5-T12 spinous processes Medial superior nuchal line
42
origin of longissimus capitis
transverse process and articular process of c4-c7 | transverse process of t1-t3
43
insertion of longissimus capitis
temporal bone-mastoid process
44
innervation on longissimus capitis
spinal nerve c1-L5
45
action of longissimus capitis
bilat-flexes head | unilat-flexes and rotates head ipsilaterally
46
origin of longissimus thoracis
sacrum iliac crest spinous process of lumbar vertebra transverse process of lower thoracic vertebra
47
innervation of longissimus thoracis
spinal nerve c1-L5
48
action of longissimus thoracis
bilat-extends spine | unilat-bends spine laterally ipsilaterally
49
origin of spinalis cervicis
spinous process of c5-t2
50
insertion of spinalis cervicis
c2-c5 spinous process
51
Innveration of spinalis cervicis
spinal nerve posterior rami
52
action of spinalis cervicis
bilat-extends cervical and thoracic spine | unilat-bends cervical and thoracic spine ipsilaterally
53
origin of spinalis thoracis
t10-L3
54
insertion of spinalis thoracis
t2-t8 spinous process lateral surface
55
innervation of spinalis thoracis
spinal nerve posterior rami
56
action of spinalis thoracis
bilat-extends cervical and thoracic spine | unilat-bends cervical and thoracic spine ipsilaterally
57
origin of splenius capitis
nuchal ligament | c3-c7 spinous process
58
insertion of splenius capitis
lateral superior nuchal line | mastoid process
59
innervation of splenius capitis
spinal nerve c1-c6 post rami, lat branches
60
action of splenius capitis
bilat-extends cervical spine and head | unilat-flexes and rotates head ipsilaterally
61
origins of splenius cervicis
spinous process t3-t6
62
insertion of splenius cervicis
transverse process c1-c2
63
innervation of splenius cervicis
spinal nerve c1-c6 post rami, lat branch
64
action of splenius cervicis
bilat- extends cervical spine and head | unilat-flexes and rotates head ipsilaterally
65
origin of semispinalis capitis
transverse and articular process of c4-c7
66
insertion of semispinalis capitis
btwn superior and inferior nuchal lines
67
innervation of semispinalis capitis
spinal nerve post rami
68
action of semispinalis
bilat-extends thoracic and cervical spine and head stabilizes craniovertebral joints unilat-bends head, cervical and thoracic spines to same side, rotates to opposite side
69
origin of semispinalis cervicis
transverse process of t1-t6
70
insertion of semispinalis cervicis
spinous process of c2-c5
71
innervation of semispinalis cervicis
spinal nerve, post rami
72
action of semispinalis cervicis
bilat-extends thoracic and cervical spine and head stabilizes craniovertebral joints unilat-bends head, cervical and thoracic spines to same side, rotates to opposite side
73
origin and insertion of multifidus
c2-sacrum btwn transverse and spinous process, skipping 2-4 vertebrae
74
innervation of multifidus
spinal nerve posterior rami
75
action of multifidus
bilat-extends spine | unilat-flexes spine to same side, rotates to opposite side
76
origin and insertion of rotatores breves
t1-t12 btwn transverse and articular process of adjacent vertebra
77
innervation of rotatores breves
spinal nerve, posterior rami
78
action of rotatores breves
bilat-extends thoracic spine | unilat-rotates spine to opposite side
79
origin and insertion of rotatores longi
t1-t12 btwn transervse and spinous process, skipping one vertebra
80
innervation of rotatores longi
spinal nerve, posterior rami
81
action of rotatores longi
bilat-extends thoracic spine | unilat-rotates spine to opposite side
82
origin of obliquus capitis inferior
spinous process c2
83
insertion of obliquus capitis inferior
transverse process of c1
84
innervation of obliquus capitis inferior
C1 posterior rami suboccipital nerve
85
origin of obliquus capitis superior
c1 transverse process
86
insertion of obliquus capitis superior
middle 1/3 of inferior nuchal line | above rectus capitis posterior major
87
innervation of obliquus capitis superior
c1 posterior rami=suboccipital nerve
88
action of obliquus capitis superior
bilat-extends head | unilat-tilts head to same side and rotates head to opposite side
89
origin of rectus capitis posterior major
spinous process of c2
90
insertion of rectus capitis posterior major
middle 1/3 of inferior nuchal line
91
innervation of rectus capitis posterior major
c1 posterior rami=suboccipital nerve
92
action of rectus capitis posterior major
bilat-extends head | unilat-rotates head to the same side
93
origin of rectus capitis posterior minor
c1 posterior tubercle
94
insertion of rectus capitis posterior minor
inner 1/3 of inferior nuchal line
95
innervation of rectus capitis posterior minor
c1 posterior rami=suboccipital nervse
96
action of rectus capitis posterior minor
bilat-extends head | unilat-rotates head to same side
97
origin of sternocleidomastiod
sternum and medial 1/3 of clavicle
98
innervation of sternocleidomastiod
motor-accessory nerve (CN XI) | pain-cervical plexus c2,c3
99
action of sternocleidomastiod
unilat-tilts head to same side, rotates head to opposite side bilat-extends head, aids in respiration when head is fixed
100
origin of anterior scalene
anterior tubercles or transverse process of c3-c6
101
insertion of anterior scalene
scalene tubercle of 1st rib
102
innervation of anterior scalene
direction branches from cervical and brachial plexus c3-c8
103
action of anterior scalene
mobile ribs-elevates upper ribs during forced inspiration | fixed ribs-bends cervical spine to same side, flexes neck bilaterally
104
origin of middle scalene
transverse process of c1-c2 | posterior tubercles of transverse process c3-c7
105
insertion of middle scalene
1st rib posterior to groove for subclavian artery
106
innervation of middle scalene
direct branches from cervical and brachial plexuses c3-c8
107
actions of middle scalene
mobile ribs-elevate upper ribs during forced inspiration | fixed ribs-bends cervical spine to same side unilaterally and flexes neck bilaterally
108
origin of posterior scalene
posterior tubercles of transverse process of c5-c7
109
insertion of posterior scalene
2nd rib outer surface
110
innervation of posterior scalene
direct branches from cervical and brachial plexuses c3-c8
111
action of posterior scalene
mobile ribs-elevate upper ribs during forced inspiration | fixed ribs-bends cervical spine to same side unilaterally and flexes neck bilaterally
112
Actions of obliquus capitis inferior
bilat-extends head | unilat-rotates head to same side

Gross Anatomy (8 decks)

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