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15 Cards in this Set
- Front
- Back
The spinal cord and spinal nerves mediate reactions to environmental changes. true or false
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true
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name three functions of the spinal cord
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1. It processes reflexes
2. It is the site for integration of EPSPs and IPSP that arise locally or are triggered by nerve impulses from the periphery and brain 3. It is a conduction pathway for sensory and motor nerve impulses |
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The spinal cord is protected by two connective tissue coverings...what are they?
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the meninges and vertebra, and a cushion of cerebrospinal fluid (CSF)
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The meninges are three coverings that run continuously around the spinal cord and brain what are they?
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1. Dura mater (outermost layer)
2. Arachnoid (middle layer) 3. Pia mater (inner layer) |
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what inhibits assembly of new virus by blocking protease in progency virons
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protease inhibitors for HIV therapy
saquinavir, ritonavir, indinavir, nelfinacir, amprenavir |
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the spinal cord passes through the vetebral canal? true or false
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true
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The connective tissue coverings of the brain and spinal cord from superficial to deep are...
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Epidural space
Dura mater Subdural space- contains interstitial fluid Arachnoid layer Subarachnoid space- contains CSF Pia mater |
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The spinal cord begins as a continuation of the _____________ and terminates at about the L2 in an adult
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medulla oblongata
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The spinal cord contains cervical and lumbar enlargements that serve as points of origin for nerves to the extremities..name the location of both the cervical and lumbar enlargements
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a. Cervical enlargement: C4 – T1: nerves to the upper extremity
b. Lumbar enlargement: T9 – T12: nerves to the lower extremity |
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a. Filum terminale is an extension of the ____________ that anchors the spinal cord to the coccyx
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pia mater
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fact: Cauda equine “horses tail” peripheral nerves that exit the spine from below the conus medullaris; the roots of these nerves angle inferiory in the vertebral canal
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fact: Filum terminale is an extension of the pia mater that anchors the spinal cord to the coccyx
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The 31 pairs of spinal nerves are named and numbered according to the region and level of the spinal cord from which they emerge...true or false
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true
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name the 31 pairs of spinal nerves...
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1. 8 cervical nerves (C1-C8)
2. 12 thoracic nerves (T1-T12) 3. 5 lumbar nerves (L1-L5) 4. 5 sacral nerves (S1-S5) 5. 1 coccygeal nerve |
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_____________ are the paths of communication between the spinal cord and most of the body
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Spinal nerves
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The posterior/dorsal (sensory) root contains sensory nerve fibers and conducts nerve impulses from the periphery into the spinal cord...true or false
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true
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