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Anatomy S1 > Back Origin/Insertions > Flashcards

Back Origin/Insertions Flashcards

1
Q

trapezius origin and insertion

A

origin- external occipital protuberance, spinous process of cervical to mid thoracic vertebra

insertion- clavicle, acromion, spine of scapula

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2
Q

innervation and action of trapezius

A

innervation- anterior rami C3-C4, motor nerve (XI)

action- elevate, retract, depress scapula

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3
Q

latissimus dorsi origin and insertion

A

origin- spinous process or mid thoracic to sacral (through thoracolumbar fascia), iliac crest

insertion- intertubercular sulcus (proximal humerus)

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4
Q

innervation and action of latissimus dorsi

A

innervation- thoracadorsal nerve

action-adduct arm from an abducted position, extend arm form a flexed position

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5
Q

origin and insertion of rhomboid major/minor

A

origin- spinous process of lower cervical to upper thoracic

insertion- medial border of scapula

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6
Q

innervation and action of rhomboid major/minor

A

innervation- dorsal scapular nerve

action- retract scapula

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7
Q

origin and insertion of levator scapulae

A

origin- transverse process of upper cervical

insertion- superior angle of scapulai

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8
Q

innervation and action of levator scapulae

A

innervation- dorsal scapular

aciton- elevates scapula, fixes scapula (resist downward force), downward rotation

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9
Q

origin and insertion of serratous posterior superior

A

origin- nuchal ligament, spinous process of C7-T3

insertion-n superior border of ribs 2-5

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10
Q

innervation and action of serratous posterior superior

A

innervation- anterior rami T2-T5

action- elevates superior ribs

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11
Q

origin and insertion of serratous posterior inferior

A

origin- spinous process of T11-L2

insertion- inferior border of ribs 9-12

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12
Q

innervation and action of serratous posterior inferior

A

innervation- anterior rami T9-T12

action- depresses inferior ribs

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13
Q

Origin and insertion of splenius capitits

A

origin- spinous process of cervical and upper thoracic vertebra

insertion- mastoid process and occipital bone

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14
Q

innervation and action of splenius capitis

A

innervation- dorsal rami C2-C6

action- extend/laterally bends neck and head , rotates head to same side

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15
Q

origin and insertion of splenius cervicis

A

origin- spinous process of cervical and upper thoracic vertebra

insertion- transverse process of upper cervical

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16
Q

innervation and action of splenius cervicis

A

innervation- dorsal rami C2-C6

action- extend/laterally bends neck and head, rotates head to same side

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17
Q

origin and insertion of iliocostalis

A

(most lateral of erector spinae)

origin-iliac crest, sacrum

insertion- lateral to costal angle

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18
Q

innervation and action of iliocostalis

A

innervation - dorsal rami C4-S5

action- extends and laterally bends the trunk and neck

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19
Q

origin and insertion of longissimus

A

origin- transverse process at inferior vertebral levels

insertion- medial to costal angle

20
Q

innervation and action of longissimus

A

innervation- dorsal rami of C1- S1

action- extends and laterally bends the trunk, neck, and head

21
Q

origin and insertion of spinalis

A

origin- spinous process at inferior vertebral levels

insertion- spinous process at superior vertebral levels

22
Q

innervation and action of spinalis

A

innervation- dorsal rami of C2- L3

action- extends and laterally bends trunk, neck

23
Q

origin and insertion of rotatores thoracis

A

origin- transverse process of thoracic

insertion- long: spinous process 2 levels above origin
brevis: spinous process one level above origini

24
Q

innervationa and action of rotatores thoracic

A

innervation- dorsal rami C1-L5

action- rotates vertebral column to opposite side

25
Q

origin and insertion of multifidus lomborum

A

origin- sacrum, transverse of C3-L5

insertion- spinous process of 2-4 vertebral levels superior to origin

26
Q

innervation and action of multifidus lomborum

A

innervation- dorsal rami of C1-L5

action- extend/laterally bends trunk, rotate to opposite side

27
Q

origin and insertion of semispinalis capitis

A

origin- articular processes of C4-C7, transverse processes of T1-T6

insertion- between superior and inferior nuchal lines of occipital bone

28
Q

innervation and action of semispinalis capitis

A

innervation- greater occipital nerve

action- extension, lateral flexion, lateral rotation of neck

29
Q

origin and insertion of semispinalis cervicis

A

origin- transverse processes of T1-T6

insertion- posterior surfaces of spinous processes of C2-C5

30
Q

innervation and action of semispinalis cervicis

A

innervation- medial branches of posterior rami

action- laterally flexes neck, rotates neck to opposite side

31
Q

origin and insertion of semispinalis thoarcis

A

origin- transverse processes of T6-T11

insertion- spinous process of C6-T4 vertebra

32
Q

innervation and action of semispinalis thoracis

A

innervation- medial branches of posterior rami of thoracic nerves

action- extension, lateral flexion and rotation of thoracic spine

33
Q

origin and insertion of interspinalis

A

origin- superior aspect of spinous processes of C3-T1

insertion- inferior aspect of spinous processes of cranially adjacent vertebra C2-C7

34
Q

innervation and action of interspinalis

A

innervation- medial branches of posterior division of spinal nerves

action- aid in extension of cervical spine and stabilize the cervical spine and maintain body posture

35
Q

origin and insertion of levatores costorum

A

origin- transverse process of C7-T11

insertion- rib one level below vertebra or origin

36
Q

innervation and action of levatores costarum

A

innervation- dorsal rami of C8-T11

action- elevates the ribs during respiration

37
Q

origin and insertion of intertranersarii

A

origin- transverse process of one cervical vertebra (or lumbar)

insert- transverse process of adjacent vertebra

38
Q

innervation and action of intertransversarii

A

innervation- anterior rami of spinal nerves

action- lateral flexion of vertebral column, stabilize the vertebral column

39
Q

origin and insertion of rectus capitis posterior minor

A

origin- posterior tubercle of C1

insertion- medial part of inferior nuchal line of occipital bone

40
Q

innervation and action of rectus capitis posterior minor

A

innervation- suboccipital nerve (posterior rami C1)

action- extend head on neck

41
Q

origin and insertion of obliquus capitis superior

A

origin- transverse process of C1

insertion- occipital bone between superior inferior nuchal lines

42
Q

innervation and action of obliquus capitis superior

A

innervation- suboccipital nerce (post rami C1)

action- contraction causes head extension at atlantoaxial joint

43
Q

origin and insertion of rectus capitis posterior major

A

origin- spinous process of C2

insertion- lateral part of inferior nuchal line of occipital bone

44
Q

innervation and action of rectus capitis posterior major

A

innervation- suboccipital nerve (C1 posterior rami)

action- extension and rotation of head

45
Q

origin and insertion of obliquus capitis inferior

A

origin- lateral surface of spinous process of axis (C2)

insertion- posterior aspect of transverse process of atlas (C1)

46
Q

innervation and action of obliquus capitis inferior

A

innervation- suboccipital nerce (posterior ramus C1)

action- rotates head to side

Anatomy S1 (2 decks)

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