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Myology 1
Lecture 12
| Question | Answer |
|---|---|
| muscles of posterior trunk | transversospinalis group,quadratus lumborum,interspinals, intertransversarii,levator costarum,subcostales |
| transversospinalis group OIAN | O=pelvis,I=spine & head,A=bilat extends head,neck & trunk,anter tilt of pelvis.unilateral lateral flexion of head neck and trunk,contralateral rotation of neck and trunk(opposite side pelvis elevate).N=dorsal rami of cervical,thoracic and lumbar spinal nn |
| transversospinalis group | very deep in back and lie in the laminar groove btw SP's and TP's.trunk=deep to erector spinae group,neck=deep to trap,SCM,splenius capitis.attach from TP inf to SP sup,3=semispinalis,multifidis,rotatores |
| transversospinalis superficial to deep | semispinalis-multifidid-rotatores |
| paraspinal musculature | erector spinae and transversospinalis |
| semispinalis | attaches superiorly to verebrae 5 or more levels above,attaches onto head |
| multifidis | attaches superiorly 2-4 levels above,attaches onto pelvis |
| rotatores | attaches superiorly 1-2 levels |
| semispinalis thoracis OIAN | O=TP T6-T10.I-SP C6-T4.A=bilat extends head, neck and trunk.unilat later flex head neck and trunk contralateral rotatotion of neck and trunk.N=dorsal rami of the cervical,throacic and lumbar spinal nn |
| multifidis OIAN | O=post sacrum,PSIS,L5-C4.I=SP 2-4 levels sup to inf attachment.A=bilat extension of neck and trunk.anterior tilt pelvis.unilateral lateral flex of neck and trunk,contralateral rotation of neck and trunk,elevate pelvis.N=dorsal rami of CTL spinal nn |
| rotatores OIAN | O=TP of lumbar,thoracic and cervical vertebrae.I=lamina of the vertebrae one to two levels above.A=bilat extends neck and trunk.unilat contraction contralateral rotation o neck and trunk |
| quadratus lumborum | QL,very deep and forms part of posterior abdominal wall.deep to erector spinae,palp later to medial,can elevate pelvis=hip hiking |
| quadratus lumborum OIAN | O=rib 12,L1-4 TP.I=posterior iliac crest.A=bilat extension of trunk,anterior tilt.unilateral lateral trunk flex,hip hiking, depress 12th rib.N=lumbar plexus |
| interspinals | paired muscles that are located on either side of the interspinous ligaments between the apices of the SP of adjacent vertebrae,deep to supraspinous lig,not located thru entire spine,in cervical and lumbar region(lordotic curve areas),fixate spine |
| interspinals OIAN | O=from a SP(except C1-no SP),I=SP directly superior (not in throacic spine).A=extension of neck and trunk.N=dorsal rami of the CTL spinal nn |
| intertransversarii | btw TP and very deep.attach onto anterior tubercles and posterior tubercles of TP in cervical spine.not in thoracic region since levator costarum and intercostals take their place.fixators of spine. |
| intertransversarii OIAN | O=from TP of a vertebrae,I=TP directly superior (in thoracic region T10-L1)A=lateral flexion of neck and trunk.N=dorsal rami of the CTL spinal nn |
| levator costarum | elevate ribs,attach from vertebrae TP and run iferiolaterally on to rib directly inferior,are respiratory mm that move ribs or move/fixate spinal joints,most superficial of deep |
| levator costarum OIAN | O=TP of C7-T11.I=Rib 1-12.A=primarily elevation of ribs,contribute to extension of trunk bilaterally,unilaterally lateral flexion of trunk.N=dorsal rami of thoracic spinal nn |
| subcostales | usually well developed in lower thoracic region.deep to ribcage and superficial to plural membranes.respiratory mm depress ribs for forced expiration |
| subcostales OIAN | O=ribs 10-12,I=ribs 8-10,A=depression of ribs 8-10.N=intercostal nn 8-11 |
| semispinalis Cervicic OIAN | O=TP T1-T5.I=SP C2-C5.A=bilat extends head,neck,trunk.unilat lateral flex head,neck,trunk.contralateral rot neck and trunkN=dorsal rami of CTL spinal nn |
| semispinalis capitis OIAN | TP of C7-T6 and AP of C4-C6.I=occiput.bilat extends head,neck,trunk.unilat lateral flex head,neck,trunk.contralateral rot of neck and trunk.N=dorsal rami of CTL spinal nn |
| which layer deep are transversospinalis mm | 5th layer deep |
| which mm attaches to head | semispinalis |
| which mm extends head | semispinalis capitis |
| with mm bilaterally extend neck and trunk | semispinalis thoraicis and cervicis, rotatores,multifidis,interspinalis |
| which mm unilaterally lateral flex trunk | semispinalis thoracic and cervicis, multifidis,levator costarum |
| which mm bilateral anterior tilt pelvis | multifidis,QL |
| which mm unilaterally contralateral rotation of neck and trunk | semispinalis thorcis and cervicis, multifidis,rotatores |
| which mm have dorsal rami CTL spinal nn | semispinalis,multifidis,rotatores,interspinalis,intertransversii, |
| which mm attach from TP inferiorly to SP superiorly | semispinalis and rotatores |
| which mm attaches to pelvis | multifidis, QL (PSIS) |
| what are the different levels of attachment | semispinalis 5 levels superiorly, multifidis 2-4 levels,rotatores 1-2 levels |
| which mm has superior to inferior attachment | multifidis |
| which mm elevates the pelvis contraleterally | multifidis |
| which mm attaches to lamina not SP | rotatores |
| which mm does unilateral contralateral rotation only | rotatores |
| what is nn innervation of QL | lumbar plexus |
| which region of spine are interspinalis located | lordotic curves, cervical and lumbar region |
| which mm attach btw SP | interspinalis,directly superior |
| which vertebrae does interspinalis not attach to | C1 no SP |
| which mm is btw TP | intertransversii |
| where do intertransversii attach in cervical spine | anterior and posterior tubercles of TP |
| which region does not have intertransversii | thoracic region since levator costarum and intercostals take their place |
| which mm fixate spine | interspinalis and intertransversii, levator costarum |
| which mm bilat extends trunk | QL,levator costarum |
| which mm attaches from TP to TP | intertransversii, TP to TP directly superior(in Thoracic region found btw T10-L1 due to levator costarum and intercostals attach to ribs |
| which mm is innervated by dorsal rami of thoracic spinal nn | levator costarum |
| which mm elevate ribs | QL,levator costarum |
| which mm depress ribs | subcostales, deep in ribcage,forced expiration |
| which mm only does lateral flex of neck and trunk | intertransversii |
| which mm runs from TP inferiolaterally to rib | levator costarum, elevates rib |
| which ribs do Levator costarum attach | Insert inferiorly on Rib 1-12 |
| which ribs does subcostalis depress | ribs 8-10 |
| which mm innervated by intercostal nn | 8-11 |
| which mm attach to ribs but not innervated by intercostals | levator costarum, dorsal rami of thoracic spinal nn |
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mloft
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