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29 Cards in this Set
- Front
- Back
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Reflex circuits |
Control rapid reactions |
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Gray matter is a site |
For integration of postsynaptic potentials |
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White matter contains |
Major sensory and nervous tracts |
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Dura mater |
Forms a sac around entire cord |
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Epidural space |
Runs between dura mater and ligamentum flavum |
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Subdural space |
Between dura and arachnoid |
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Pia mater has |
21 pair of denticulate ligaments |
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Cervical enlargement |
Sensory input and motor output to upper extremities |
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Lumbar enlargement |
Motor output and sensory input to and from lower extremities |
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2 bundles of axons are called |
Roots |
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The posterior root ganglion |
Contains cell bodies of neurons |
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The anterior root |
Contains axons of motor neurons |
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Site used for most lumbar punctures |
Between 3rd and 4th or 4th and 5th |
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In the spinal cord, white matter |
Is on the outside, gray inside |
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A tract is |
A bundle of neuronal axons that are all located in a specific area |
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A dermatome is |
An area of skin that's innervated by a single nerve |
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Spinal nerves are |
paths of communication between spinal cord and specific regions of the body |
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Cervical plexus |
Formed by anterior rami of c1-c5 |
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Brachial plexus |
Formed by anterior rami of c5-c8. Divided into roots, trunks, divisions, cords, nerves |
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Major nerves coming from brachial plexus |
Musculocutaneous, axillary, radial, median, ulnar, long thoracic |
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Erbs palsy |
Paralysis of arm |
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Median nerve injury results in |
Numbness tingling and pain. Carpal tunnel |
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Ulnar nerve |
Funny bone |
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Long thoracic nerve |
Results in winged scapula |
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Lumbar plexus |
Formed by anterior rami of l1-l4 |
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Sacral plexus |
Contains sciatic nerve |
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Spinal reflexes |
Can be monosynaptic or polysynaptic |
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Reflex arc |
Pathway a nerve impulse follows to produce a reflex |
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Babinski reflex |
Big toe curls when sole of foot is stimulated |
