8.1 Nervous System Questions - Group 2 Flashcards
Afferent neurons are also called:
Sensory Neurons
Afferent neurons carry nerve signals :
Towards the CNS
The Schwann cell is found in the PNS or CNS?
PNS
The neuroglia that are small phagocytic cells that wander around in the CNS are called:
Microglia
Motor neurons are also called:
Efferent neurons
The term “efferent” means:
“away from”
Neurons that are said to “make decisions” are called:
Interneurons
Interneurons store information and process information thus their function is:
a. motor
b. sensory
c. Integrative
Integrative
What cell in the CNS is responsible for myelination?
Oligodendrocytes
The purpose of the myelin sheath is for:
Insulation of nerve fibers
What cell begins in the CNS and extends to muscles and gland cells that carry out its commands?
Motor (efferent) neuron
What does the acronym CSF stand for?
Cerebrospinal fluid
The only neuron that is entirely found within the CNS is the:
Interneuron
Cilia help to circulate the CSF in the brain and spinal cord. What neuroglia makes the CSF?
Ependymal cells
What glial cell forms the blood-brain-barrier?
Astrocyte
What glial cell forms myelin sheaths in the PNS?
Schwann cell
What does the acronym PNS stand for?
Peripheral Nervous System
Schwann cells are the only glial cell capable of:
Regeneration and healing of a nerve fiber.
When the axons of neurons are myelinated, what are the spaces of exposed nerve fiber called?
Nodes of Ranvier
Bundles of myelinated nerve fibers called tracts are found in:
White matter
Cell bodies, dendrites and synapses are located in:
Gray matter
Bundles of myelinated nerve fibers that travel up and down the spinal cord; and between areas of the brain are called:
Tracts
