BIO-201 Nervous System Review Questions and Correct Answers
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Course
BIO 201
Institution
BIO 201
What are the properties of neurons? -excitability -conductivity -secretion
What are the major functions of the human nervous system? neurons
Which are the 2 major types/groups of cells that make up nervous tissue? CNS and PNS
What are the 4 neuroglia of the CNS? neuroglia (glial cells) -astrocyt...
BIO-201 Nervous System Review
Questions and Correct Answers
What are the properties of neurons? ✅-excitability
-conductivity
-secretion
What are the major functions of the human nervous system? ✅neurons
Which are the 2 major types/groups of cells that make up nervous tissue? ✅CNS and
PNS
What are the 4 neuroglia of the CNS? ✅neuroglia (glial cells)
-astrocytes, microglia, epdendymal cells and oligodendrocytes
What are the 2 neuroglia of the PNS? ✅satellite cells and schwann cells
Axons vs. dendrites? ✅Axons:
-only 1 per neuron
-carries electrical signal (action potential)
-axon structure is critical to function
Dendrites:
-highly branched
-dendrite spines:
- many fine processes
-receive info from other neurons
-80%-90% of neuron surface area
Axon telodendria=__? ✅fine extensions of distal axons
Synaptic terminals=__? ✅tips of axon
What is myelin and what is its primary function? ✅white, fattish protein layer that
protects and electrically insulates the axon and speeds up nerve impulses (up to 150x
faster)
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