Brainscape's Knowledge GenomeTM


Top Flashcards (Certified)
All Flashcards

Anatomy > Muscles of Back Region > Flashcards

Muscles of Back Region Flashcards

1
Q

erector spinae origin

A

iliac crest, sacrum, transverse and spinous processes of vertebrae and supraspinal ligament

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

erector spinae insertion

A

angles of the ribs (illiocostalis), transverse and spinous processes of vertebrae (longissiums), posterior aspect of the skull (spinalis)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

erector spinae action

A

extends and laterally bends the trunk, neck and head

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

erector spinae innervention

A

segmentally innervated by dorsal primary rami of spinal nerves C1-S5

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

erector spinae artery

A

supplied segmentally by: deep cervical a., posterior intercostal aa., subcostal aa., lumbar aa.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

erector spinae notes

A

the erector spinae m. is separated into 3 columns of muscle: iliocostalis laterally, longissimus in an intermediate position and spinalis medially; each of these columns has multiple named parts

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

iliocostalis origin

A

iliac crest and sacrum

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

iliocostalis insertion

A

angles of the ribs

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

iliocostalis action

A

extends and laterally bends the trunk and neck

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

iliocostalis innervation

A

dorsal primary rami of spinal nerves C4-S5

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

iliocostalis artery

A

supplied segmentally by: deep cervical a., posterior intercostal aa., subcostal aa., lumbar aa.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

iliocostalis notes

A

the most lateral part of the erector spinae; it may be subdivided into lumborum, thoracis and cervicis portions

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

interspinales origin

A

upper border of spinous process

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

interspinales insertion

A

lower border of spinous process above

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

interspinales action

A

extend trunk and neck

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

interspinales innervation

A

dorsal primary rami of spinal nerves C1-L5

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
17
Q

interspinales artery

A

supplied segmentally by: deep cervical a., posterior intercostal aa., subcostal aa., lumbar aa.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
18
Q

interspinales notes

A

these are small and fairly insignificant muscles

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
19
Q

intertransversarii origin

A

upper border of transverse process

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
20
Q

intertransversarii insertion

A

lower border of transverse process above

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
21
Q

intertransversarii action

A

laterally bend trunk and neck

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
22
Q

intertransversarii innervation

A

dorsal primary rami of spinal nerves C1-L5

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
23
Q

intertransversarii artery

A

supplied segmentally by: deep cervical a., posterior intercostal aa., subcostal aa., lumbar aa.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
24
Q

intertransversarii notes

A

these are small and fairly insignificant muscles

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
25
longissimus origin
transverse process at inferior vertebral levels
26
longissimus insertion
transverse process at superior vertebral levels and mastoid process
27
longissimus action
extends and laterally bends the trunk, neck and head
28
longissimus innervation
dorsal primary rami of spinal nerves C1-S1
29
longissimus artery
supplied segmentally by: deep cervical a., posterior intercostal aa., subcostal aa., lumbar aa.
30
longissimus notes
the intermediate part of the erector spinae;it may be subdivided into thoracis, cervicis and capitis portions
31
multifidus origin
sacrum, transverse processes of C3-L5
32
multifidus insertion
spinous processes 2-4 vertebral levels superior to their origin
33
multifidus action
extend and laterally bend trunk and neck, rotate to opposite side
34
multifidus innervation
dorsal primary rami of spinal nerves C1-L5
35
multifidus artery
supplied segmentally by: deep cervical a., posterior intercostal aa., subcostal aa., lumbar aa.
36
multifidus notes
semispinalis, multifidus and rotatores make up the transversospinal muscle group
37
rotatores origin
transverse processes
38
rotatores insertion
long rotatores: spines 2 vertebrae above origin; short rotatores: spines 1 vertebrae above origin
39
rotatores action
rotates the vertebral column to the opposite side
40
rotatores innervation
dorsal primary rami of spinal nerves C1-L5
41
rotatores artery
supplied segmentally by: deep cervical a., posterior intercostal aa., subcostal aa., lumbar aa.
42
rotatores notes
semispinalis, multifidus and rotatores make up the transversospinal muscle group
43
semispinalis origin
transverse processes of C7-T12
44
semispinalis insertion
capitis: back of skull between nuchal lines; cervicis & thoracis: spines 4-6 vertebrae above origin
45
semispinalis action
extends the trunk and laterally bends the trunk, rotates the trunk to the opposite side
46
semispinalis innervation
dorsal primary rami of spinal nerves C1-T12
47
semispinalis artery
supplied segmentally by: deep cervical a., posterior intercostal aa., subcostal aa., lumbar aa.
48
semispinalis notes
three parts are named based on their insertions: capitis, cervicis and thoracis; semispinalis, multifidus and rotatores make up the transversospinal muscle group
49
serratus posterior inferior origin
thoracolumbar fascia, spines of vertebrae T11-T12 and L1-L2
50
serratus posterior inferior innervation
ribs 9-12, lateral to the angles
51
serratus posterior inferior action
pulls down lower ribs
52
serratus posterior inferior innervation
branches of the ventral primary rami of spinal nerves T9-T12
53
serratus posterior inferior artery
lowest posterior intercostal a., subcostal a., first two lumbar aa.
54
serratus posterior inferior notes
a respiratory muscle, it receives ventral ramus innervation; embryonically related to the intercostal muscles, not the deep back mm.
55
serratus posterior superior origin
ligamentum nuchae, spines of vertebrae C7 and T1-T3
56
serratus posterior superior insertion
ribs 1-4, lateral to the angles
57
serratus posterior superior action
elevates the upper ribs
58
serratus posterior superior innervation
branches of the ventral primary rami of spinal nerves T1-T4
59
serratus posterior superior artery
posterior intercostal aa. 1-4
60
serratus posterior superior notes
a respiratory muscle, it receives ventral ramus innervation; embryonically related to the intercostal muscles, not the deep back mm.
61
spinalis origin
spinous processes at inferior vertebral levels
62
spinalis insertion
spinous processes at superior vertebral levels and base of the skull
63
spinalis action
extends and laterally bends trunk and neck
64
spinalis innervation
dorsal primary rami of spinal nerves C2-L3
65
spinalis artery
supplied segmentally by: deep cervical a., posterior intercostal aa., subcostal aa., lumbar aa.
66
spinalis notes
most medial part of the erector spinae; may be subdivided into thoracis, cervicis and capitis portions
67
splenius capitis origin
ligamentum nuchae and spines of C7-T6 vertebrae
68
splenius capitis insertion
mastoid process and lateral end of the superior nuchal line
69
splenius capitis action
extends and laterally bends the neck and head, rotates head to the same side
70
splenius capitis innervation
dorsal primary rami of spinal nerves C2-C6
71
splenius capitis artery
supplied segmentally by: deep cervical a., posterior intercostal aa.
72
splenius capitis notes
named for its shape: splenius means bandage and capitis refers to the insertion of this portion of the muscle
73
splenius capitis origin
ligamentum nuchae and spines of C7-T6 vertebrae
74
splenius capitis insertion
mastoid process and lateral end of the superior nuchal line
75
splenius capitis action
extends and laterally bends the neck and head, rotates head to the same side
76
splenius capitis innervation
dorsal primary rami of spinal nerves C2-C6
77
splenius capitis artery
supplied segmentally by: deep cervical a., posterior intercostal aa.
78
splenius capitis notes
named for its shape: splenius means bandage and capitis refers to the insertion of this portion of the muscle
79
splenius cervicis origin
ligamentum nuchae and spines of C7-T6 vertebrae
80
splenius cervicis insertion
posterior tubercles of the transverse processes of C1-C3 vertebrae
81
splenius cervicis action
extends and laterally bends neck and head, rotates head to the same side
82
splenius cervicis innervation
dorsal primary rami of spinal nerves C2-C6
83
splenius cervicis artery
supplied segmentally by: deep cervical a., posterior intercostal aa.
84
splenius cervicis notes
named for its shape: splenius means bandage and cervicis refers to the insertion of this portion of the muscle

Anatomy (13 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2025 Bold Learning Solutions. Terms and Conditions