Mini Quiz 11
Myelinated, large
A nerve impulse travels fastest along _____ axons of _____ diameter.
Pools
Billions of CNS interneurons are grouped in complex patterns called neuronal
Unmyelinated axons
Continuous conduction of a nerve impulse occurs only along
Are smaller and capable of mitosis
Glial cells differ from neurons in that they
Astrocyte
The glial cell that helps to form the blood-brain barrier is the
The high lipid content of the myelin sheath
The glossy-white appearance of most axons is due to
False
True/False All axons in the CNS and PNS are myelinated.
Spinal Cord
Which does not belong to the peripheral nervous system?
perineurium
the connective tissue wrapping that surrounds bundles (fascicles) of axons is the ____________
epineurium, perineurium, endoneurium
the connective tissue wrappings of a nerve, beginning at the OUTERMOST layer, are __________________
microglial
the glial cell that defends the body against pathogens is the ________ cell
ependymal
the glial cell that helps to form cerebrospinal fluid is the _________ cell
neurolemmocyte
the glial cell that myelinates and insulates axons in the peripheral nervous system (PNS) is the _______________
oligodendrocyte
the glial cell that myelinates and insulates axons within the CNS is the _______________
satellite
the glial cell that protects neuron cell bodies located within ganglia is the __________ cell
astrocyte
the most abundant glial cell in the CNS is the __________
interneurons
the neurons that are responsible for integrating information by retrieving, processing, storing, and "deciding" how the body responds to stimuli are ____________
False
true/false regeneration of axons occurs more readily in the CNS than in the PNS
True
true/false saltatory conduction of a nerve impulse occurs only along myelinated axons
converging
you walk into a restaurant and amidst the sights, sounds, and smells of food preparation, you notice that you have begun to salivate. this is evidence that a particular neuronal circuit has been activated. which one?