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Muscle Biology > Muscle Biology of Back > Flashcards

Muscle Biology of Back Flashcards

(66 cards)

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1
Q

origin of rotatores thoracis

A

transverse process of each thoracic vertebrae

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2
Q

insertion of rotatores thoraces

A

spinous process of the vertebra above each respectivr thoracic vertebrae

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3
Q

innervation of rotatores thoracis

A

cervical, thoracic and spinal nerves

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4
Q

action of rotatores thoracis

A

extend and rotate the vertebral column

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5
Q

blood supply of rotatores thoracis

A

vertebral artery

occipital artery

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6
Q

what type of muscle is rotatores thoracis longi

A

intrinsic muscle deep in the back

in the thoracic region 11 on each side of the spine

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7
Q

what type of muscle is multifidus
what is made of
where does it extend from and extend towards

A

intrinsic muscle behind the rotatores thoracis
made of fasciculi and fill the groove on either side of the spinous process
extends from C2 to sacrum

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8
Q

origin of multifidus

A

sacrum
posterior superior iliac spine
mamillary processes of lumbar vertebrae
transverse processes of thoracic vertebrae
articular processes of cervical vertebrae (C4-C7)

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9
Q

Insertion of multifidus

A

spinous process 2-4 vertebrae superior to the origin

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10
Q

innervation of multifidus

A

posterior branches

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11
Q

action of multifidus

A

stabilizes vertebrae in local movements of the vertebral column

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12
Q

blood supply of multifidus

A

cervicis - vertebral artery and occipital artery
Thoracis - posterior intercostal arteries
Lumborum - lumbar arteries, lateral sacral artery

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13
Q

spinalis thoracis is one of what type of muscle and name the other muscles

A

in upper medial colume of erector spinae
spinalis thoracis
spinalis cervicis
spinalis capitis

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14
Q

origin of spinalis thoracis

A

spinous process of first 2 lumbar and last 2 thoracic vertebrae

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15
Q

insertion of spinalis thoracis

A

spinous process of upper thoracic vertebrae

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16
Q

innervation of spinalis thoracis

A

dorsal rami of upper cervical nerves

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17
Q

actions of spinalis thoracis

A

extends the spine

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18
Q

blood supply of spinalis thoracis

A

posterior intercostal arteries

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19
Q

origin of spinalis cervicis

A

ligamentum nuchae

spinous process of 7th cervical

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20
Q

insertion of spinalis cervicis

A

spinous process of vertebrae C2-C5

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21
Q

Innervation of spinalis cervicis

A

dorsal rami of upper cervical nerves

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22
Q

action of spinalis cervicis

A

extend head

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23
Q

blood supply of spinalis cervicis

A

posterior intercostal arteries

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24
Q

origin of iliocostalis lumbordum

A

iliac crest and lateral portion of the common erector spinae tendon

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25
insertion of iliocostalis lumbordum
inferior borders of angles of lower 6/7 ribs
26
innervation of iliocostalis lumbordum
dorsal rami of spinal nerves | thoracic and upper lumbar nerves
27
action of iliocostalis lumbordum
extends laterally flexes and aids in rotation of the spine can depress the ribs
28
blood supply of iliocostalis lumbordum
posterior intercostal arteries subcostal arteries lumbar arteries
29
origin of iliocostalis thoracis
upper borders of angles of lower 6 ribs medial to tendons of insertion of iliocostalis lumbordum
30
insertion of iliocostalis thoracis
upper borders of the angles of upper 6 ribs and into the back of the transverse process of 7th cervical vertebrae
31
innervation of iliocostalis thoracis
dorsal primary rami of C8, thoracic and upper lumbae nerves
32
action of iliocostalis thoracis
extends, laterally flexes an aids in rotation of the spine
33
blood supply of iliocostalis thoracis
posterior intercostal arteries subcostal arteries lumbar arteries
34
origin of iliocostalis cervicis
ribs 3-6
35
insertion of iliocostalis cervicis
transverse processes of cervical vertebrae C4-C6
36
Innervation of iliocostalis cervicis
dorsal rami of spinal nerves
37
action of iliocostalis cervicis
extends laterally flexes and aids in rotation of spine
38
blood supply of iliocostalis cervicis
occipital artery | posterior intercostal arteries
39
origin of splenius capitis
lower half of ligamentum nuchae | spinous processes of 7th cervical vertebra through the upper 3 or 4 thoracic vertebrae C7-T3
40
Insertion of splenius capitis
Mastoid process of temporal bone and occipital bone
41
innervation of splenius capitis
dorsal rami of middle cervical spinal nerves
42
action of splenius capitis
supports the head in erect position | draws head directly backwards, to one side and slightly rotates it
43
blood supply of splenius capitis
muscular branches of aorta
44
blood supply of splenius cervicis
occipital artery | transverse cervical artery
45
origin of splenius cervicis
spinous processes of T3-T6
46
Insertion of splenius cervicis
Transverse processes of C1-C3
47
Innervation of splenius cervicis
dorsal rami of spinal nerves C1-C6
48
Action of splenius cervicis
supports the head in erect position | draws head directly backwards, to one side and slightly rotates it
49
longissimus thoracis
intermediate of the erector spinae
50
origin of longissimus thoracis/dorsi
whole length of the posterior surfaces of the transverse processes and the accessory processes of the lumbar vertebrae and lumbordorsal fascia
51
insertion of longissimus thoracis/dorsi
rounded tendons into the tips of the transverse processes of all the thoracic vertebrae and by fleshy processes into the lower 9/10 ribs between their tubercles and angles
52
innervation of longissimus thoracis/dorsi
dorsal primary rami of the thoracic and lumbar spinal nerves
53
action of longissimus thoracis/dorsi
extends and laterally flexes the spine aid in compression of ribs
54
blood supply of longissimus thoracis/dorsi
posterior intercostal arteries subcostal arteries lumbar arteries
55
origin of longissimus cervicis
transverse process of upper 4/5 thoracic vertebrae
56
insertion of longissimus cervicis
posterior tubercles of the transverse processes of cervical cervical vertebrae
57
innvervation of longissimus cervicis
dorsal primary rami of the upper thoracic and lower cervical spinal nerves
58
action of longissimus cervicis
extends and laterally flexes the spine
59
blood supply of longissimus cervicis
posterior intercostal arteries
60
origin of longissimus capitis
transverse processes of the upper 4/5 thoracic vertebrae and the articular processes of the lower 3/4 cervical vertebrae
61
insertion of longissimus capitis
posterior margin of mastoid process | beneath splenius capitis and sternocleidomastoid
62
innervation of longissimus capitis
dorsal primary rami of the middle and lower cervical spinal nerves
63
action of longissimus capitis
extend the head | unilaterally bends the head and turns it to face the asme side
64
blood supply of longissimus capitis
occipital artery
65
muscles that make up the erector spinae of the back
spinalis cervicis, spinalis thoracis, spinalis capitis - all emerge from spinous process of thoracic and cervical column - most central of all muscles longissimus cervicis, thoracis, capitis - more lateral to spinalis cervicis, attach to transverse process of lumbar, thoracic and cervical vertebrae and lateral tubercle of lower 9-10 ribs iliocostalis lumbordum, thoracis, cervicis - most lateral muscle
66
list muscles that belong to the transversospinalis muscle of the back
semispinalis thoracis, semispinalis cervicis, semispinalis capitis - attached from transverse process to upper spinous process of corresponding vertebrae multifidus rotatores thoracis, cervicis, lumbordum - attach from transverse process to corresponding spinous process

Muscle Biology (25 decks)

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