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Systems Pharmacology II
Synapses and PNS
24
Biology
Graduate
01/29/2012

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Term
electrical synapses
Definition
synchronizes activity of interconnected neurons
Term
what does it take to be a NT?
Definition
-cause a response when injected into the synaptic cleft
-occur naturally in presynaptic neurons
-be released when the presynaptic neurons are stimulated
Term
NT characteristics
Definition
-synthesized in axon terminal
-stored in vesicles
-bind to pre and post synaptic receptors
-taken back up into presynaptic to be stored or degraded
Term
NT release
Definition
-mediated thru SNAREs that are activated by Ca
Term
stimulus in dendrite
Definition
-GRADED potential
-no voltage gated Na channels
-more NT=larger graded potential
-longer NT is there=longer the potential
Term
simple reflex arc
Definition
-receptor
-sensory neuron
-integration center (interneuron)
-motor neuron
-effector
Term
nerve structure
Definition
-axon, myelin sheath, endoneurium, perineurium, fascicle,epineurium
Term
olfactory
Definition
I
Term
optic
Definition
II
Term
oculomotor
Definition
III
Term
trochlear
Definition
IV
Term
trigeminal
Definition
V
Term
abducens
Definition
VI
Term
facial
Definition
VII
Term
vestibulo-cochlear
Definition
VIII
Term
glossopharyngeal
Definition
IX
Term
vagus
Definition
X
Term
accessory
Definition
XI
Term
hypoglossal
Definition
XII
Term
sensory cranial nerves cell bodies location
Definition
outside CNS
Term
motor cranial nerve cell bodies location
Definition
brain stem
Term
5 divisions of spinal nerves
Definition
-cervical
-thoracic
-lumbar
-sacral
-coccygeal
Term
dorsal contain
Definition
sensory fibers
Term
ventral contain
Definition
motor fibers
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