Term
|
Definition
|
|
Term
|
Definition
|
|
Term
|
Definition
-afferent
-delivers info to CNS |
|
|
Term
|
Definition
-efferent
-carries info to periphery (muscles, glands) |
|
|
Term
|
Definition
| -found throughout brain and spinal cord |
|
|
Term
|
Definition
| found in retina and inner ear |
|
|
Term
|
Definition
| found in ganglia (clusters or neurons) adjacent to spinal cord |
|
|
Term
| nissibodies (chromatophilic bodies) |
|
Definition
| -RER clusters of free ribosomes that produces protein (neurotransmitters) |
|
|
Term
|
Definition
cytoskeleton of neuron
maintains shape |
|
|
Term
|
Definition
| transmit info to cell body |
|
|
Term
|
Definition
one per unit
transmits info from cell body |
|
|
Term
|
Definition
-produced by oligodendrocytes in CNS and Schwann cells in PNS
-composed of lipids
-conducts electrical impulse |
|
|
Term
|
Definition
| cell wall of oligodendrocyte or Schwann cell |
|
|
Term
|
Definition
| area of axon not covered with myelin |
|
|
Term
|
Definition
|
|
Term
|
Definition
| -oligodendrocyte, microglia, astrocyte, ependymal cells |
|
|
Term
|
Definition
| -produces myelin covering in CNS |
|
|
Term
|
Definition
phagocyte
ingests dead/damaged tissue |
|
|
Term
|
Definition
-assists in the nourishment of neurons
-helps form blood brain barrier |
|
|
Term
|
Definition
-astrocyte, basement membrane, endothelial wall of capillary
-regulates what substances pass from bloodstream into CNS |
|
|
Term
|
Definition
| line cavities and ventricles of brain |
|
|
Term
|
Definition
| -Schwann cells, satellite cells |
|
|
Term
|
Definition
|
|
Term
|
Definition
| regulate nourishment to neurons in PNS |
|
|
Term
|
Definition
| cluster of neurons in CNS |
|
|
Term
|
Definition
| cluster of neurons in PNS |
|
|
Term
|
Definition
|
|
Term
|
Definition
|
|
Term
|
Definition
| site of communication b/w neurons |
|
|
Term
| conduction of nerve impulse |
|
Definition
-electrical impulse causes change in permeability of membrane
-Na in
-K out
-electrical impulse travels along outside to nodes of Ranvier |
|
|
Term
|
Definition
|
|
Term
|
Definition
|
|
Term
|
Definition
|
|
Term
|
Definition
|
|
Term
|
Definition
| neurotransmitter in neuromuscular junction |
|
|
