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Ex. 17 Nervous Tissue 1st Page
Ex. 17 Nervous Tissue 1st Page
18
Anatomy
Undergraduate 1
02/06/2010

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Term
The brain and spinal cord collectively
Definition
Central Nervous System (CNS)
Term
specialized supporting cells in the CNS
Definition
neuroglia
Term
junction or point of close contact between neurons
Definition
synapse
Term
bundle of nerve processes inside the CNS
Definition
tract
Term
neuron serving as part of the conduction pathway between sensory and motor neurons
Definition
association neurons
Term
ganglia and spinal and cranial nerves
Definition
Peripheral Nervous System (PNS)
Term
collection of nerve cell bodies found outside the CNS
Definition
ganglion
Term
neuron that conducts impulses away from the CNS to muscles and glands
Definition
efferent neurons
Term
neuron that conducts impulses towards the CNS from the body periphery
Definition
afferent neuron
Term
chemicals released by the neurons that stimulate or inhibit other neurons or effectors
Definition
neurotransmitters
Term
region of the cell body from which the axon originates
Definition
axon hillock
Term
secretes neurotransmitters
Definition
axon terminal
Term
receptive region of a neuron
Definition
dendrite
Term
insulates the nerve fibers
Definition
myelin sheath
Term
site of the nucleus and is the most important metabolic area
Definition
neuronal cell body
Term
may be involved in the transport of substances within the neuron
Definition
neurofibril
Term
Impulse generator and transmitter
Definition
axon
Term
Essentially rough endoplasmic reticulum imported metabolically
Definition
Nissl Bodies
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