Back Origin/Insertions Flashcards
trapezius origin and insertion
origin- external occipital protuberance, spinous process of cervical to mid thoracic vertebra
insertion- clavicle, acromion, spine of scapula
innervation and action of trapezius
innervation- anterior rami C3-C4, motor nerve (XI)
action- elevate, retract, depress scapula
latissimus dorsi origin and insertion
origin- spinous process or mid thoracic to sacral (through thoracolumbar fascia), iliac crest
insertion- intertubercular sulcus (proximal humerus)
innervation and action of latissimus dorsi
innervation- thoracadorsal nerve
action-adduct arm from an abducted position, extend arm form a flexed position
origin and insertion of rhomboid major/minor
origin- spinous process of lower cervical to upper thoracic
insertion- medial border of scapula
innervation and action of rhomboid major/minor
innervation- dorsal scapular nerve
action- retract scapula
origin and insertion of levator scapulae
origin- transverse process of upper cervical
insertion- superior angle of scapulai
innervation and action of levator scapulae
innervation- dorsal scapular
aciton- elevates scapula, fixes scapula (resist downward force), downward rotation
origin and insertion of serratous posterior superior
origin- nuchal ligament, spinous process of C7-T3
insertion-n superior border of ribs 2-5
innervation and action of serratous posterior superior
innervation- anterior rami T2-T5
action- elevates superior ribs
origin and insertion of serratous posterior inferior
origin- spinous process of T11-L2
insertion- inferior border of ribs 9-12
innervation and action of serratous posterior inferior
innervation- anterior rami T9-T12
action- depresses inferior ribs
Origin and insertion of splenius capitits
origin- spinous process of cervical and upper thoracic vertebra
insertion- mastoid process and occipital bone
innervation and action of splenius capitis
innervation- dorsal rami C2-C6
action- extend/laterally bends neck and head , rotates head to same side
origin and insertion of splenius cervicis
origin- spinous process of cervical and upper thoracic vertebra
insertion- transverse process of upper cervical
innervation and action of splenius cervicis
innervation- dorsal rami C2-C6
action- extend/laterally bends neck and head, rotates head to same side
origin and insertion of iliocostalis
(most lateral of erector spinae)
origin-iliac crest, sacrum
insertion- lateral to costal angle
innervation and action of iliocostalis
innervation - dorsal rami C4-S5
action- extends and laterally bends the trunk and neck
origin and insertion of longissimus
origin- transverse process at inferior vertebral levels
insertion- medial to costal angle
innervation and action of longissimus
innervation- dorsal rami of C1- S1
action- extends and laterally bends the trunk, neck, and head
origin and insertion of spinalis
origin- spinous process at inferior vertebral levels
insertion- spinous process at superior vertebral levels
innervation and action of spinalis
innervation- dorsal rami of C2- L3
action- extends and laterally bends trunk, neck
origin and insertion of rotatores thoracis
origin- transverse process of thoracic
insertion- long: spinous process 2 levels above origin
brevis: spinous process one level above origini
innervationa and action of rotatores thoracic
innervation- dorsal rami C1-L5
action- rotates vertebral column to opposite side
origin and insertion of multifidus lomborum
origin- sacrum, transverse of C3-L5
insertion- spinous process of 2-4 vertebral levels superior to origin
innervation and action of multifidus lomborum
innervation- dorsal rami of C1-L5
action- extend/laterally bends trunk, rotate to opposite side
origin and insertion of semispinalis capitis
origin- articular processes of C4-C7, transverse processes of T1-T6
insertion- between superior and inferior nuchal lines of occipital bone
innervation and action of semispinalis capitis
innervation- greater occipital nerve
action- extension, lateral flexion, lateral rotation of neck
origin and insertion of semispinalis cervicis
origin- transverse processes of T1-T6
insertion- posterior surfaces of spinous processes of C2-C5
innervation and action of semispinalis cervicis
innervation- medial branches of posterior rami
action- laterally flexes neck, rotates neck to opposite side
origin and insertion of semispinalis thoarcis
origin- transverse processes of T6-T11
insertion- spinous process of C6-T4 vertebra
innervation and action of semispinalis thoracis
innervation- medial branches of posterior rami of thoracic nerves
action- extension, lateral flexion and rotation of thoracic spine
origin and insertion of interspinalis
origin- superior aspect of spinous processes of C3-T1
insertion- inferior aspect of spinous processes of cranially adjacent vertebra C2-C7
innervation and action of interspinalis
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
origin and insertion of levatores costorum
origin- transverse process of C7-T11
insertion- rib one level below vertebra or origin
innervation and action of levatores costarum
innervation- dorsal rami of C8-T11
action- elevates the ribs during respiration
origin and insertion of intertranersarii
origin- transverse process of one cervical vertebra (or lumbar)
insert- transverse process of adjacent vertebra
innervation and action of intertransversarii
innervation- anterior rami of spinal nerves
action- lateral flexion of vertebral column, stabilize the vertebral column
origin and insertion of rectus capitis posterior minor
origin- posterior tubercle of C1
insertion- medial part of inferior nuchal line of occipital bone
innervation and action of rectus capitis posterior minor
innervation- suboccipital nerve (posterior rami C1)
action- extend head on neck
origin and insertion of obliquus capitis superior
origin- transverse process of C1
insertion- occipital bone between superior inferior nuchal lines
innervation and action of obliquus capitis superior
innervation- suboccipital nerce (post rami C1)
action- contraction causes head extension at atlantoaxial joint
origin and insertion of rectus capitis posterior major
origin- spinous process of C2
insertion- lateral part of inferior nuchal line of occipital bone
innervation and action of rectus capitis posterior major
innervation- suboccipital nerve (C1 posterior rami)
action- extension and rotation of head
origin and insertion of obliquus capitis inferior
origin- lateral surface of spinous process of axis (C2)
insertion- posterior aspect of transverse process of atlas (C1)
innervation and action of obliquus capitis inferior
innervation- suboccipital nerce (posterior ramus C1)
action- rotates head to side
