The basic functional unit of the nervous system.
Major function of this cell type (Neuron)
to transmit & generate messages (nerve impulses from one another
Name 4 types of neuroglia in the CNS & list the function for each of these cels
Astrocytes, ependymal, microglial , oligodendrocytes
helps regulate the extra cellular composition of brain fluid.
secretes cerebrospinal fluids helps move CBF in brain & spinal cord.
phagocytic cells in the CNS
form part of the myelin sheaths of axons w/in the CNS
the PNS glial cell the forms myelin
( looks like hot dog buns)
neuron that conducts impulse toward the CNS from the body periphery
(outside to the left towards the body -in)
neuron that conducts impulses away form the CNS to muscle & glands.
( inside to the right -the body- out)
PNS glial cell that surrounds dorsal root ganglion neurons.
collection of nerve cell bodies found outside the CNS
Central Nervous System
brain & spinal cord collectively
neuron serving as part of the conduction pathway between sensory & motor neurons ( middle)
specialized supporting cells in the CNS
chemicals released by neurons that stimulate or inhibit other neurons or effectors.
a bundle of nerve processes inside the CNS
neuron cell bodies are found in the CNS in clusters
(occasionally the reside in ganglia)
Peripheral Nervous System PNS
The part of the nervous system that lies outside the centra nervous system consisting of nerves & ganglia.
junction or point of close contact between neurons
ganglia &spinal & cranial nerves.
impulses generator & transmitter
region of the cell body from which the axon originates
receptive region of a neuron
insulates the nerve fibers
may be involved in the transport of substances w/in the neuron
neuronal cell body
site of the nucleus and most important metabolic area
essential rough endoplasmic reticulum important metabolically
What substances is found in synaptic vesicles of the axon terminal