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15 Cards in this Set

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  • Back
The spinal cord and spinal nerves mediate reactions to environmental changes. true or false
true
name three functions of the spinal cord
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
The spinal cord is protected by two connective tissue coverings...what are they?
the meninges and vertebra, and a cushion of cerebrospinal fluid (CSF)
The meninges are three coverings that run continuously around the spinal cord and brain what are they?
1. Dura mater (outermost layer)
2. Arachnoid (middle layer)
3. Pia mater (inner layer)
what inhibits assembly of new virus by blocking protease in progency virons
protease inhibitors for HIV therapy
saquinavir, ritonavir, indinavir, nelfinacir, amprenavir
the spinal cord passes through the vetebral canal? true or false
true
The connective tissue coverings of the brain and spinal cord from superficial to deep are...
Epidural space
Dura mater
Subdural space- contains interstitial fluid
Arachnoid layer
Subarachnoid space- contains CSF
Pia mater
The spinal cord begins as a continuation of the _____________ and terminates at about the L2 in an adult
medulla oblongata
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
a. Cervical enlargement: C4 – T1: nerves to the upper extremity
b. Lumbar enlargement: T9 – T12: nerves to the lower extremity
a. Filum terminale is an extension of the ____________ that anchors the spinal cord to the coccyx
pia mater
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
fact: Filum terminale is an extension of the pia mater that anchors the spinal cord to the coccyx
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
true
name the 31 pairs of spinal nerves...
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
_____________ are the paths of communication between the spinal cord and most of the body
Spinal nerves
The posterior/dorsal (sensory) root contains sensory nerve fibers and conducts nerve impulses from the periphery into the spinal cord...true or false
true