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Related Flashcards
Cards In This Set
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Gray matter
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The cortex of the brain which contains nerve cell bodies, heavy & unmyelinated
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Cervical enlargement
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A swelling of the spinal cord in cervical area of the spinal cord
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Lumbar enlargement
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A swelling of the spinal cord beginning at the level of the tenth thoracic vertebra and tapering into the medullary cone
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Dorsal root ganglia
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A group of nerve cell bodies, located outside the central nervous system
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Ventral roots
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The motor division of each spinal nerve, attached centrally to the spinal cord and joining peripherally with the dorsal root
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Cauda equina
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The cauda equina is a collection of intradural nerve roots at the end of the spinal cord (horse's tail)
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Meninges
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The membranes that cover the brain and spinal cord
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List the 3 spinal meninges in order.
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Dura mater, arachnoid, pia mater
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Dura mater
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Most superficial, thick, contains collagen fibers, has epidural space and epidural block
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The arachnoid
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2nd, middle layer, subarachnoid space where CSF circulates, spinal tap taken from here
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The Pia Mater
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The innermost later, attached directly to the nervous tissue, elastic and collagen fiebers, NO blood supply (blood brain barrier)
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Anterior median fissure
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A longitudinal furrow along the midline of the anterior aspect of the spinal cord and medulla oblongata
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Posterior median sulcus
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A shallow vertical groove dividing the spinal cord throughout its whole length in the midline posteriorly
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White matter
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Part of the brain & spinal cord that contains myelinated nerve fibers
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Gray matter
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The cortex of the brain & spinal cord which contains nerve cell bodies, unmyelinated
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