Term
| the inferior end of the spinal cord. general location found by palpating L2 spinous process; newborns usually deep to L3 |
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Definition
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Term
| extends from level of L2 interspace to second sacral segment |
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Definition
| spinal subarachnoid space below the level of the spinal cord |
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Term
| CSF sampling or anesthesia are usually introduced here |
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Definition
| below level of L3 or L4 spine (level of intercristal line)...nerve roots usually slide away from needle |
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Term
| strips of skin with receptors supplied by a specific spinal nerve |
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Definition
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Term
| spinal cord begins at (a) and ends at (b) |
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Definition
a) foramen magnum of occipital bone
b) second lumbar vertebra in adult |
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Term
| corresponds to spinal cord segments associated with innervation of the muscles and skin of upper extremity |
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Definition
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Term
| corresponds to spinal cord segments associated with innervation of the muscles and skin of the lower extremities |
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Definition
| lumbosacral (lumbar) enlargement |
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Term
| How many pairs of spinal nerves are there and how many per section? |
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Definition
31 spinal nerves
8 cervical
12 thoracic
5 lumbar
5 sacral
1 coccygeal |
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Term
| provide strong attachments between the vertebral bodies, uniting them into a continuos semirigid column and the inferior half of the anterior border of the IV foramen |
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Definition
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Term
| bulging fibrous ring consisting of concentric lamellae of fibrocartilage forming the circumference of the IV discs |
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Definition
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Term
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Definition
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Term
| strong broad fibrous band that covers and connects the anterolateral aspects of the vertebral bodies and IV discs. goes from pelvic surface of sacrum up to C1 |
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Definition
| anterior longitudinal ligament- only ligament that limits extension |
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Term
| narrower, somewhat weaker band runs within the vertebral canal attached mostly to the IV discs and less to posterior aspect of the vertebral bodies...goes from C2 to sacrum |
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Definition
| posterior longitudinal ligament- limits flexion |
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Term
| bending of the vertebral column to the right or left of neutral (erect) position |
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Definition
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Term
| returning to the erect posture from a position of lateral flexion |
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Definition
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Term
| thoracic and sacral kyphoses develop during the fetal period in relation to the (flexed) fetal position |
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Definition
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Term
| cervical and lumbar lordoses result from extension from the flexed fetal position |
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Definition
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Term
| the major reflex center and conduction pathway between the body and brain |
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Definition
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Term
| the portion of the spinal cord giving rise to the rootlets and roots that ultimately form one pair of bilateral pair of spinal nerves |
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Definition
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Term
| How are the spinal nerves numbered? |
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Definition
| Besides for C8, all cervical spinal nerves share the same number as the cervical vertebrae that forms the inferior margin of the IV foramina. The other spinal nerves T1-Co1 share the same number as the spinal vertebrae that forms the superior margin of the IV foramina |
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Term
| enlargement of the subarachnoid space between the conus medullaris of spinal cord (about vertebral level L2) and inferior end of subarachnoid space and dura mater (about vertebral level S2); occupied by the posterior and anterior roots constituting the cauda equina, the terminal filum, and cerebrospinal fluid; site for lumbar puncture and spinal anesthesia. |
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Definition
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Term
| the bundle of spinal nerve roots arising from the lumbosacral enlargement and medullary cone and running through the lumbar cistern (subarachnoid space) within the vertebral canal below the first lumbar vertebra; it comprises the roots of all the spinal nerves below the first lumbar. |
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Definition
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Term
| vestigial remnant of the caudal part of the spinal cord that was in the tail-like caudal eminence of the embryo |
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Definition
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Term
| mainly tough fibrous with some elastic tissue, it is the outermost covering of the spinal cord |
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Definition
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Term
| the spinal dura mater is separated from the periosteum-covered bone and the ligaments that form the wall of the vertebral canal (a)...this space is occupied by the internal venous plexus embedded in a fatty matrix (b) |
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Definition
(a) epidural space
(b) epidural fat |
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Term
| a long tubelike sheath within the vertebral canal |
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Definition
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Term
| delicate, avascular membrane composed of fibrous and elastic tissue that lines the spinal dural sac and its dural root sheaths...it encloses the CSF-filled space |
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Definition
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