Exam 1 Muscles Flashcards
1
Q
What is the origin of the transverse trapezius muscle?
A
aponeurosis of T1-T4 at spinous process
2
Q
What is the origin of the ascending trapezius muscle?
A
T5-T12 spinous process
3
Q
What is the insertion of the descending trapezius muscle?
A
lateral 1/3 of the clavicle
4
Q
What is the insertion of the transverse trapezius muscle?
A
acromion
5
Q
What is the insertion of the ascending trapezius muscle?
A
spine of the scapula
6
Q
What is the action of the trapezius muscle?
A
elevates
depresses
retracts
–> all done to scapula by way of fibers
7
Q
What is the innervation of the trapezius muscle?
A
Motor: spinal accessory nerve (CN XI)
Sensory: C3, C4
8
Q
What is the blood supply of the trapezius muscle?
A
transverse cervical artery
9
Q
What is the origin of the levator scapulae muscle?
A
Transverse process of C1-C4
10
Q
What is the insertion of the levator scapulae muscle?
A
superior angle of scapula
11
Q
What is the action of the levator scapulae muscle?
A
elevates the scapula while moving the inferior angle medially
12
Q
What is the innervation of the levator scapulae muscle?
A
Dorsal scapular nerve
C4, C5
13
Q
What is the origin of the rhomboid minor muscle?
A
spinous processes of C7 and T1
14
Q
What is the insertion for the rhomboid minor muscle?
A
medial border of scapula, at root of the spine
15
Q
What is the innervation for the rhomboid minor muscle?
A
dorsal scapular nerve
C5
16
Q
origin of rhomboid major
A
T2-T5 spinous processes
17
Q
insertion of rhomboid major
A
medial border of scapula, from spine to inferior angle
18
Q
action of rhomboid minor
A
retracts scapula
downwardly rotates glenoid
fixes to thoracic wall
19
Q
action of rhomboid major
A
retracts scapula
rotates glenoid downwardly
fixes to thoracic wall
20
Q
innervation of rhomboid major
A
dorsal scapular nerve
C5
21
Q
origin of lats- vertebral
A
spinous process of T5-T12
thoracolumbar fascia
22
Q
insertion of lats- vertebral
A
Floor of inter tubercular sulcus of humerus
23
Q
action of lats- vertebral
A
medial rotation
extension
adduction
24
Q
innervation of lats- vertebral
A
thoracodorsal nerve C6-C8
25
origin of lats- scapular
inferior angle of scapula
26
insertion of lats- scapular
Floor of inter tubercular sulcus of humerus
27
action of lats- scapular
medial rotation
adduction
extension
28
innervation of lats- scapular
thoracodorsal nerve C6-C8
29
origin of lats-costal
9th to 12th ribs
30
insertion of lats- costal
Floor of inter tubercular sulcus of humerus
31
action of lats
medial rotation
extension
adduction
32
innervation of lats- costal
thoracodorsal nerve
| C6-C8
33
origin of lats- iliac
posterior 1/3 of iliac crest
34
insertion of lats- iliac
Floor of inter tubercular sulcus of humerus
35
action of lats- iliac
medial rotation
extension
adduction
36
innervation of lats- iliac
thoracodorsal
| C6-C8
37
What is the origin of the descending trapezius muscle?
EOP
superior nuchal line
nuchal ligament
C1-C7 spinous process
38
serratus posterior superior
| action
elevates ribs
39
serratus posterior superior
| innervation
T2-T5 spinal nerves- anterior rami
40
serratus posterior inferior
| origin
T11- L2 spinous processes
41
serratus posterior inferior
| action
depresses ribs
42
serratus posterior inferior
| innervation
spinal nerves T9-T12 anterior rami
43
iliocostalis cervicis
| origin
ribs 3-7
44
iliocostalis cervicis
| insertion
C4-C6 transverse processes
45
iliocostalis cervicis
| action
bilateral: extends spine
unilateral: laterally bends spine to same side
46
iliocostalis cervicis
| innervation
spinal nerves C8- L1 posterior rami, lateral branches
47
iliocostalis thoracis
| origin
ribs 7-12
48
iliocostalis thoracis
| insertion
ribs 1-6
49
iliocostalis thoracis
| action
bilateral: extends spine
unilateral: laterally bends spine to the same side
50
iliocostalis thoracis
| innervation
spinal nerves C8-L1 posterior rami, lateral branches
51
iliocostalis lumborum
| origin
sacrum
iliac crest
thoracolumbar fascia
52
iliocostalis lumborum
| insertion
ribs 6-12
deep layer of thoracolumbar fascia
transverse processes of upper lumbar vertebrae
53
iliocostalis lumborum
| action
bilateral: extends spine
unilateral: laterally bends spine to same side
54
iliocostalis lumborum
| innervation
spinal nerves C8-L1 posterior rami, lateral branches
55
longissimus capitis
| origin
transverse and articular processes of C4-C7
| T1-T3 transverse processes
56
longissimus capitis
| insertion
mastoid process of temporal bone
57
longissimus capitis
| action
bilateral: extends head
unilateral: flexes and rotates head to same side
58
longissimus capitis
| innervation
spinal nerves C1-L5 posterior rami
59
longissimus cervicis
| origin
T1-T6 transverse processes
60
longissimus cervicis
| insertion
transverse processes C2-C5
61
longissimus cervicis
| action
bilateral: extends spine
unilateral: bends spine laterally to same side
62
longissimus cervicis
| innervation
spinal nerves C1-L5 posterior rami
63
longissimus thoracis
| origin
sacrum
iliac crest
spinous processes on lumbar vertebrae
transverse processes on lower thoracic vertebrae
64
longissimus thoracis
| insertion
2nd-12th ribs
| transverse processes of thoracic and lumbar vertebrae
65
longissimus thoracis
| action
bilateral: extends spine
unilateral: bends spine laterally to same side
66
longissimus thoracis
| innervation
spinal nerves C1-L5 posterior rami
67
spinalis cervicis
| origin
C5-T2 spinous processes
68
spinalis cervicis
| insertion
C2-C5 spinous processes
69
spinalis cervicis
| action
bilateral: extends cervical and thoracic spine
unilateral: bends cervical and thoracic spine to same side
70
spinalis cervicis
| innervation
posterior rami on spinal nerves
71
spinalis thoracis
| origin
T10-L3 spinous processes, lateral surfaces
72
spinalis thoracis
| insertion
T2-T8 spinous processes, lateral surfaces
73
spinalis thoracis
| action
bilateral: extends cervical and thoracic spine
unilateral: bends thoracic and cervical spine to same side
74
spinalis thoracis
| innervation
posterior rami on spinal nerves
75
splenius capitis
| origin
nuchal ligament
| C3-C7 spinous processes
76
splenius capitis
| insertion
lateral superior nuchal line
mastoid process
...of occipital bone
77
splenius cervicis
| action
bilateral: extends cervical spine and head
unilateral: flexes and rotates head to the same side
78
splenius cervicis
| innervation
spinal nerves C1-C6 posterior rami
79
semispinalis capitis
| origin
C4-C7 transverse and articular processes
80
semispinalis capitis
| insertion
between superior and inferior nuchal line on occipital bone
81
semispinalis capitis
| action
bilateral: extends thoracic and cervical spine and head
(stabilizes craniovertebral joint)
unilateral: bends head
cervical and thoracic spine to same side
rotates to opposite side
82
semispinalis capitis
| innervation
posterior rami on spinal nerves
83
semispinalis cervicis
| origin
T1-T6 transverse processes
84
semispinalis cervicis
| insertion
C2-C5 spinous processes
85
semispinalis cervicis
| action
bilateral: extends thoracic and cervical spines and head
(stabilizes craniovertebral joint)
unilateral: bends head
cervical and thoracic spine to same side
rotates to opposite side
86
semispinalis cervicis
| innervation
posterior rami on spinal nerves
87
multifidus
| origin
C2-sacrum
| b/w transverse and spinous processes, skipping two to four vertebrae
88
multifidus
| insertion
C2-sacrum
| between transverse and spinous processes, skipping two to four vertebrae
89
multifidus
| action
bilateral: extends spine
unilateral: flexes spine to same side
rotates to opposite side
90
multifidus
| innervation
posterior rami of spinal nerves
91
rotator breves
| origin
T1-T12 (between transverse and spinous processes of adjacent vertebrae)
92
rotator breves
| insertion
T1-T12 (between transverse and spinous processes of adjacent vertebra)
93
rotator breves
| action
proprioception
94
rotator breves
| innervation
posterior rami of spinal nerves
95
rotator longus
| origin
T1-T12 (between transverse and spinous processes, skipping one vertebra)
96
rotator longus
| insertion
T1-T12 (between transverse and spinous processes, skipping one vertebra)
97
rotator longus
| action
proprioception
98
rotator longus
| innervation
posterior rami of spinal nerves
99
obliquus capitis superior
| origin
C1 transverse process
100
obliquus capitis superior
| insertion
middle 1/3 of inferior nuchal line
| above rectus capitis posterior major
101
obliquus capitis superior
| action
bilateral: extends head
unilateral: tilts head to same side
rotates to opposite side
102
onliquus capitis superior
| innervation
C1
| posterior ramus= suboccipital nerve
103
obliquus capitis inferior
| origin
C2 spinous process
104
obliquus capitis inferior
| insertion
C1 transverse process
105
obliquus capitis inferior
| action
bilateral: extends heads
unilateral: rotates head to same side
106
obliquus capitis inferior
| innervation
C1
| posterior ramus= suboccipital nerve
107
rectus capitis posterior major
| origin
C2 spinous process
108
rectus capitis posterior major
| insertion
middle 1/3 of inferior nuchal line
....of occipital bone
109
rectus capitis posterior major
| action
bilateral: extends head
unilateral: rotates head to same side
110
rectus capitis posterior major
| innervation
C1
| posterior ramus= suboccipital nerve
111
rectus capitis posterior minor
| origin
C1 posterior tubercle
112
rectus capitis posterior minor
| insertion
inner third of inferior nuchal line
...of occipital bone
113
rectus capitis posterior minor
| action
bilateral: extends head
unilateral: rotates head to same side
114
rectus capitis posterior minor
| innervation
C1
| posterior ramus= suboccipital nerve
115
sternocleidomastoid
| origin
manubrium of sternum
| medial 1/3 of clavicle
116
sternocleidmastoid
| insertion
mastoid process of temporal bone
| superior nuchal line of occipital bone
117
sternocleidomastoid
| action
bilateral: extends head, aids in respiration when head is fixed
unilateral: tilts head to same side, rotates head to opposite side
118
sternocleidomastoid
| innervation
motor: accessory nerve CN XI
pain and proprioception: cervical plexus C2, C3
119
anterior scalene
| origin
C3-C6 anterior tubercles of transverse processes
120
anterior scalene
| insertion
1st rib scalene tubercle
121
anterior scalene
| action
with ribs mobile: elevates upper ribs during forced inspiration
with ribs fixed:
bilateral: flexes neck
unilateral: bends cervical spine to same side
122
anterior scalene
| innervation
direct branches from cervical and brachial plexuses C3-C8
123
middle scalene
| origin
C1-C2 transverse processes
| C3-C7 posterior tubercles of transverse processes
124
middle scalene
| insertion
1st rib posterior to groove for subclavian artery
125
middle scalene
| action
with ribs mobile: elevates upper ribs during forced inspiration
with ribs fixed:
bilateral: flexes neck
unilateral: bends cervical spine to same side
126
middle scalene
| innervation
direct branches from cervical and brachial plexuses C3-C8
127
posterior scalene
| origin
C5-C7 posterior tubercles of transverse processes
128
posterior scalene
| insertion
outer surface of 2nd rib
129
posterior scalene
| action
with ribs mobile: elevates ribs during forced inspiration
with ribs fixed:
bilateral: flexes neck
unilateral: bends cervical spine to same side
130
posterior scalene
| innervation
direct branches from cervical and brachial plexus C3-C8
