Nervous System Part I Flashcards
excitability
conductivity
nerve impulse
what is the function of neurons?
the nervous tissue contained within the cranium
the brain
the extension of nervous tissue within the vertebral column
the spine
the brain and spinal cord make up the…
central nervous system (CNS)
every component other than the brain and spinal cord of the nervous system is within…
peripheral nervous system (PNS)
provides a framework of tissue that supports the neurons and their activities
glial cells
neuron
the cell body
parts of a neuron
soma
the extension of a cell
parts of a neuron
process
the fiber connecting the neuron with its target
parts of a neuron
axon
regions within the nervouse system with many cell bodies and dendrites
gray matter
receive most of the input from other neurons, are also extensions of the soma
parts of a neuron
dendrites
regions within the nervous system with many axons
white matter
collection of neuron cell bodies in the CNS, contains DNA
nucleus
cluster of neuron cell bodies in the PNS, group of nuclei conected together
ganglion
bundle of axons or fibres found in the CNS
tract
bundle of axons or fibres in the PNS
nerve
