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Back OINA(B) Flashcards

1
Q

trapezius orgin

A

Superior nuchal line, external occipital protuberance, C1-C6 via ligamnetum nuchae, C7-T12 spinous process

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2
Q

trapezius insertion

A

spine of scapula, lateral third of clavicle, and acrominion process

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3
Q

trapezius action

A

superior fibers: elevate scapula and clavicle, middle fibers: retract and adduct scapula, inferior fibers: depress scapula and clavicle

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4
Q

trapezius nerve

A

spinal accessory nerve

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5
Q

trapezius blood supply

A

transverse cervical artery

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6
Q

latissimus dorsi orgin

A

Spinous process of T7-T12, L1-L5, sacrum, and posterior iliac crest via thoracolumbar fascia

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7
Q

latissimus dorsi insertion

A

floor of the bicipital groove of the humerus

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8
Q

latissimus dorsi action

A

extends, medially rotates, and adducts arm

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9
Q

latissimus dorsi innervation

A

thoracodorsal nerve

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10
Q

latissimus dorsi blood supply

A

thoracodorsal artery

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11
Q

levator scapulae orgin

A

C1-C4 transverse processes

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12
Q

levator scapulae insertion

A

superior border of scapula

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13
Q

levator scapulae action

A

elevates scapula, depresses lateral angle, helps pull scapula medially and superiorly, bend/flex the neck laterally and rotate to same side as acting muscle

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14
Q

levator scapulae nerve

A

dorsal scapular nerve

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15
Q

rhomboid major orgin

A

T2-T5 spinous processes

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16
Q

rhomboid major insertion

A

medial border of scapula

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17
Q

rhomboid major action

A

retracts the scapula, slightly elevates the scapula, and posteriorly rotates the scapula towards humerus

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18
Q

rhomboid major innervation

A

dorsal scapular nerve

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19
Q

rhomboid major blood supply

A

dorsal scapular artery

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20
Q

rhomboid minor orgin

A

C7-T1 spinous processes

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21
Q

rhomboid minor insertion

A

medial border of scapula

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22
Q

rhomboid minor action

A

retracts/adducts scapula, elevates, and roates scapula to direct the glenoid cavity inferiorly

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23
Q

rhomboid minor nerve

A

dorsal scapular nerve

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24
Q

serratus posterior superior orgin

A

Ligamentum nuchae, spinous processes of seventh cervical and first few thoracic vertebrae.

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25
serratus posterior superior insertion
Superior borders of ribs 2-5, medial to their angles.
26
serratus posterior superior action
Assists in elevating/raising ribs in inspiration (slightly increasing the diameter of thorax)
27
serratus posterior superior nerve
Ventral rami of first few thoracic nerves (T1-T4 intercostal nerves)
28
serratus posterior inferior orgin
Spinous processes of T11-T12 and L1-L3
29
serratus posterior inferior insertion
Inferior borders of ribs 9-12 near their angles.
30
serratus posterior inferior action
Pulls ribs slightly inferiorly, resisting the pull of the diaphragm (preventing them from being pulled superiorly by the diaphragm); depression of the ribs during forced expiration
31
serratus posterior inferior nerve
Ventral rami of last few thoracic nerves
32
Iliocostalis orgin
angles of ribs: 1-12
33
Iliocostalis cervicis insertion
Transverse processes of C4-C6
34
iliocostalis thoracics insertion
Angles of ribs 1-6 and transverse process of C7
35
iliocostalis lumborum insertion
Angles of ribs 7-12.
36
Iliocostalis cervicis action
Extension, lateral flexion of vertebral column
37
iliocostalis thoracic action
Extension, lateral flexion of vertebral column, rotates ribs for forceful inspiration
38
iliocostalis lumborum action
Extension, lateral flexion of vertebral column, rotates ribs for forceful inspiration.
39
Iliocostalis nerve
dorsal rami of spinal nerves
40
longissimus cervicis orgin
Transverse processes of T1-T5
41
longissimus thoracis orgin
Medial and lateral sacral crests, spinous processes of T11- L5.
42
longissimuss capitis insertion
Posterior part of mastoid process of temporal bone
43
logissimus cervicis insertion
Transverse processes of C2-C6
44
longissimus thoracis insertion
Transverse processes of all thoracic vertebrae, and medial aspects of most ribs (3-12).
45
longissimus capitis action
Extends and laterally flexes neck/head.
46
longissimus cervicis action
Extension, lateral flexion of vertebral column
47
longissimus thoracis action
Extension, lateral flexion of vertebral column, rotates ribs for forceful inspiration
48
longissimus nerve
dorsal rami of spinal nerves
49
spinalis thoracis orgin
Spinous processes of T11-L2.
50
spinalis thoracis insertion
spinous process of T1-T8
51
spinalis action
Extends, laterally flexes and stabilizes vertebral column
52
spinalis nerve
dorsal rami of spinal nerves
53
rotatores orgin and insertion
- Span 1 or 2 vertebral segments
54
rotatores action
stabilize, extend (bilaterally) and rotate (contralaterally) vertebral column
55
rotatores nerve
dorsal rami of spinal nerves
56
interspinales orgin and insertion
Paired on either side of the interspinous ligament, unite spinous processes of adjacent vertebrae
57
interspinales action
Act to stabilize and extend the vertebral column
58
interspinales nerve
dorsal rami of spinal nerves
59
intertransversarii orgin/insertion
- Unite transverse processes of adjacent vertebrae.
60
intertransversarii action
Unilaterally can produce slight lateral flexion of the vertebrae, bilaterally help stabilize vertebral column
61
intertransversarii nerve
mostly innervated by ventral rami of cervical spine nerves but some are supplied by dorsal rami
62
semispinalis capitis orgin
Transverse processes of C4-C7 and T1-T7
63
semispinalis capitis insertion
Between superior and inferior nuchal lines of occipital bone
64
semispinalis capitis action
Extends neck/head and rotates head to opposite side
65
semispinalis nerve
dorsal rami of spinal nerves
66
semispinalis cervicis and thoracis action
extends and stabilizes vertebral column
67
multifdus orgin and insertion
Span 2 to 4 (“about 3”) vertebral segments
68
multifidus action
e stabilize, extend (bilaterally) and rotate (contralaterally) the vertebral column
69
multifidus nerve
dorsal rami of spinal nerves
70
splenius capitis orgin
Inferior part of ligamentum nuchae, spinous processes of C7 and T1-T4.
71
splenius capitis insertion
Mastoid process of the temporal bone and lateral part of the superior nuchal line
72
splenius capitis action
Acting together (right and left) extend the neck/head, one side acting alone will laterally flex and rotate head and neck ipsilateral (to the same side as acting muscle)
73
splenius capitis nerve
Dorsal rami of spinal nerves
74
splenius cervicis orgin
Spinous processes of T3-T6
75
splenius cervicis insertion
Transverse processes of C1-C3
76
splenius cervicis action
Acting together (right and left) extend the neck, one side acting alone will laterally flex and rotate neck; the head will follow (ipsilateral)
77
splenius cervicis nerve
Dorsal rami of spinal nerves

Gross Anatomy (9 decks)

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