Exam 5 Flashcards
(321 cards)
What do nervous system functions include?
Sensory functions
Integrative
Motor planning
Which division of the nervous system is responsible for brain and spinal cord?
CNS
Which division is responsible for nerves and ganglia?
PNS
What are 3 physiolgical properties of a neuron?
Excitability, conductivity, secretion
Sensory Afferent neurons ..,,
Detect stimuli
Interneurons (association neurons) …
Receive signals from other neurons and make decisions about response
Motor (efferent) neurons…
Send signals to muscles to provide response
What is the control center of the neuron?
Neurosoma
What had compartmentalized ER?
Nissl bodies
What part if the neuron receives signals?
Dendrites
What part if the neuron sends action potentials?
Axons
What is the complex of branches at axons distal end?
Terminal arborization
What is the ending of an axon branch that communicates with another cell?
Synaptic knob
A neuron with many dendrites, one axon?
Multipolar
A neuron with one dendrite, one axon?
Bi polar
A neuron with no dendrites and has one axon?
Unipolar
A neuron with many dendrites and no axons?
Anaxonic
Of the CNS glia, Oligodendrocytes do what?
Myelinate to assist conductivity
What do the ependymal cells do?
Secrete and circulate cerebrospinal fluid
Why do microglia do?
Help in defense and disposal
What do astrocytes do?
Provide support and nourishment
Of the PNS glia, what does the Schwann cells do?
Myelinate to assist conduction
What do the satellite cells do?
Provide support and nourishment
What makes up the fatty white matter of CNS?
Oligodendrocytes