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28 Cards in this Set
- Front
- Back
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Which cranial nerves cause eyeball movement
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CN: III, IV, VI
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Which CN are mixed in fxn
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CN: V, VII, IX, X
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Meninges
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Protect brain and spinal cord
(dura mater, arachnamater, pia mater) |
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Cerebrospinal fluid
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brain floats in
shock absorber |
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the THORACOLUMBAR outflow of the AUTONOMIC nervous system is called the
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Sympathetic division
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Which cranial nerves cause eyeball movement
|
CN: III, IV, VI
|
|
|
Which CN are mixed in fxn
|
CN: V, VII, IX, X
|
|
|
Meninges
|
Protect brain and spinal cord
(dura mater, arachnamater, pia mater) |
|
|
Cerebrospinal fluid
|
brain floats in
shock absorber |
|
|
the THORACOLUMBAR outflow of the AUTONOMIC nervous system is called the
|
Sympathetic division
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RESTING potential
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-70MV
Na gates closed K open |
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the cell bodies of PARASYMPATHETIC POST-GANGLIONIC NEURONS lie w/in
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terminal ganglia
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a graded potential
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can be hyperpolarizing
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when VR K channels open the neuron becomes
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more polarized
repolarized |
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saltatory conduction
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occurs by the opening and closing of voltage reg. channels at the nodes of ranvier
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alpha 2 receptors
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inhibit cell fxn
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phosphodiesterase
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decreases cAMP
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VR NA channels are located
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axonal hillock
nodes of Ranvier |
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Resting potential is
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maintained by action of NA/K pumps
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hyperpolarization is due to
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an EFFLUX of K
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the action of a neurotransmitter is due to
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the receptor type it binds to
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an EPSP is
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spread by local current
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spatial summation
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when many neurons release neurotransmitters
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B1 receptors are
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found almost exclusively at the heart
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the receptor at a sympathetic neuromuscular jxn can be
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alpha
beta |
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a local current
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will degrade
spread is proportional to the amt of chem. reg. NA channels opened |
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myelinated large diameter axon
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faster than unmyelinated axon
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alpha 2 receptors
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associated w/ parasympathetic neuroeffector jxns
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