Term
| What is Nissl substance and where is it? |
|
Definition
| rER, lots in soma of neurons |
|
|
Term
| Where are nt's and other proteins made and transported? |
|
Definition
| Made in soma, delivered to axon and synaptic terminals |
|
|
Term
| flow of information between neurons |
|
Definition
| dendrite-->soma-->axon-->synapse |
|
|
Term
| what can neurons synapse onto? |
|
Definition
| dendrites, soma, axons, dendrite-dendrite, muscle and other cell types |
|
|
Term
| common biogenic amine neurotransmitters |
|
Definition
| acetylcholine, dopamine, norepinephrine, epinephrine, serotonin |
|
|
Term
| common amino acid neurotransmitters |
|
Definition
|
|
Term
| common peptide neurotransmitters |
|
Definition
vasoactive intestinal polypeptide
substance P
enkephalin
endorphin |
|
|
Term
| How does a cell receive a signal/nt? |
|
Definition
| must have receptor for that nt |
|
|
Term
| resting sodium, potassium, and chlorine concentrations |
|
Definition
| Na and Cl denser outside, K denser inside, Na/K pump maintains--> -70mV resting potential |
|
|
Term
|
Definition
| voltage-gated Na channels opening from first depolarization |
|
|
Term
|
Definition
| star-shaped glial cells in the CNS, surround most synapses, support, scaffolding, BBB, local blood flow, neuronal metabolism, recycle nt's, insulate synapses |
|
|
Term
|
Definition
| from schwann cells in PNS, oligodendrocytes in CNS, wrap around axons with membrane, makes saltatory conduction |
|
|
Term
|
Definition
| nerves (bundles of axons) and ganglia (collections of cell bodies) |
|
|
Term
|
Definition
brain, spinal cord, and retina
white matter-tracts-bundles of axons
grey matter-cell bodies-in nuclei or layered structures |
|
|
Term
|
Definition
| somatosensory (heat/pain), visceral, special sensory (including vestibular) |
|
|
Term
|
Definition
| somatic, special, autonomic (sympathetic and parasympathetic) |
|
|
Term
| afferent and efferent in spinal cord |
|
Definition
dorsal: sensory, afferent
ventral: motor, efferent |
|
|
Term
|
Definition
preganglion: brainstem to cranial nerves/ventral roots
ganglion: near target |
|
|
Term
|
Definition
preganglion: spinal cord, ventral root
ganglion: along vertebral column |
|
|
Term
|
Definition
|
|
Term
| sensory systems general plan |
|
Definition
receptor neuron
relay neuron(s)
thalamic nucleus
cortex primary sensory area |
|
|
Term
|
Definition
pain, temp, touch
small: DRG, dorsal horn, VPLN, S1 layer 4 |
|
|
Term
|
Definition
proprioception, movement, discriminative touch
large: DRG
gracile/cuneate nucleus
VPLN
S1 layer 4 |
|
|
Term
|
Definition
pigment epithelium
neural retina: photoreceptors, synaptic layer, inner nuclear cells, synaptic layer, ganglion cells, optic fiber layer |
|
|
Term
|
Definition
suprachiasmatic nucleus
LGN
pretectal nucleus
superior colliculus |
|
|
