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50 Cards in this Set
- Front
- Back
The scapula ranges between what vertebrae?
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T2-T7
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What is Tuffier's line? What does it cross?
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An invisible line that connects the topes of the iliac crests. It crosses the L4-L5 junction.
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What vertebrae does the spinal cord end at?
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L1 or L2
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What causes scoliosis?
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Being born with an extra part of a vertebrae
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What is exaggeration of the lumbar curvature called?
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Lordosis
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What is exaggeration of the thoracic curvature called?
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Kyphosis
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What is spina bifida?
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A neural tube defect marked by congenital cleft of the spinal column usually with hernial protrusion of the meninges and sometimes the spinal cord
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What is the name of the joint between an upper and lower articulating vertebrae?
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Zygapophysial joint
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What is the name of the lip of the lateral body of a cervical vertebrae that forms a lateral joint?
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Uncinate process
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What artery is the first branch of the subclavian artery?
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Vertebral
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How much of the brain's blood supply do the right and left vertebral arteries supply?
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About a third
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What is between the superior articular and inferior articular process?
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The pars interarticularis
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What is spondyloisthesis?
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The forward displacement of a lumbar vertebra on the one below it and especially of the 5th lumbar vertabra on the sacrum, producing pain by compression of nerve roots
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What is the name of the canal that is created by S4 and S5 not fusing in the midline?
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Sacral hiatus
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Why is the intervertebral foramen an artificial foramen?
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Because a true foramen is a hole through one bone, while the intervertebral hole is formed by 2 vertebra
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What is ALL and where is it located?
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Anterior longitudinal ligament; runs from the sacrum to the base of the skull. It prevents hyperextension of the vertebral column
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What is PLL and where is it located?
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Posterior longitudinal ligament; runs within the vertebral canal along the posterior aspect of the vertebral bodies, attaches to the base of the skull (this articulation is known as the tectorial membrane)
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What does the PLL do?
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Inhibits hyperflexion of the spine and disc herniation
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What ligament is located on the underside of the lamina?
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Ligamentum flavum
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What does the ligamentum flavum do and become?
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It helps restore hyperextended and hyperflexed spinal columns to the neutral position. It becomes the posterior atlanta-occipital membrane
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What membrane does the vertebral artery pass through?
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The posterior atlanto-occipital membrane
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What is the name of the synovial, plane joints that occur between the superior and inferior articular processes of the vertebrae?
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Zygapophysial joints
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What innervates the zygapopphysial joints?
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Articular branches that arise from the medial branches of the posterior rami of spinal nerves
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Where does the nuchal ligament attach?
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The external occipital protuberance and posterior border of the foramen magnum to the spinous processes of the cervical vertebrae
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How much of our height do the intervertebral discs account for?
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one fourth
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what are the 2 portions of the intervertebral discs?
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the outer annulus fibrosis (cartilaginous) and the nucleus pulposus
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what is the name of the elaborate venous system that drains the spinal cord? what's special about it?
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Batson's plexus, it's valve-less
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what's the arterial blood supply to the posterior vertebral column?
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aorta and vertebral artery
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what muscle is known as the swimmer's muscle and what are it's functins?
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latissimus dorsi, adduction, internal rotation, and extension
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what does the serratus posterior inferior attach to and function in?
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the ribs and breathing
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what is the trianlge of petit bordered by?
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latissimus dorsi, the iliac crest, and the external abdominal oblique muscles
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what is the triangle of auscultation bordered by?
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the trapezius, latissimus dorsi, and scapula or rhomboid muscles
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what 3 muscles border the suboccipital triangle?
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superior posterior oblique, inferior posterior oblique, and rectus capitus major
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what are the functions of the superior and inferior oblique muscles?
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lateral rotation of the atlas on the axis
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what are the functions of the superior major and minor rectus capitus muscles?
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extension posteriorly of the neck and head
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what is the nerve that emerges through the suboccipital triangle?
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the suboccipital nerve
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the suboccipital nerve is made up of?
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the dorsal ramus of C1, which only has a motor component, not a sensory component (therefore it doesn't have a dorsal root ganglion)
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what nerve emerges below the inferior oblique and passes superiorly through the suboccipital triangle onto the base of the skull?
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the greater occipital nerve
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what innervates the muscles of the suboccipital triangle?
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the lesser occipital nerve from C3 and C2
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what are the divisions of the iliocostalis?
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lumborum, thoracis, and cervicis
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what are the divisions of the longissimus?
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thoracis, cervicis, and capitis
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what are the divisions of the spinalis?
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thoracis, cervicis, and capitis
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what innervates the erector spinae muscles?
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the dorsal rami of spinal nerves
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what is the arterial supply for the erector spinae muscles?
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the posterior intercostal arter, which is a branch of the intercostals which are segmental arteries coming off the descending aorta
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what is the name of the deepest muscles of the back, and where do they generally run to/from?
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the transversospinalis - they run from the transverse processes to the spine
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what are the muscles of the transversospinalis group?
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the semispinalis, the rotatores, and the multifidous
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what are the divisions of the semispinalis?
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capitis, cervicis, and thoracis
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where does the splenius capitus insert?
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the occipital bone inferior to the superious nuchal line
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where do the rotatores attach?
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from the transverse processes to the spines
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where do the multifidi attach?
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between 2 individual vertebrae
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