Test , Practice Questions, Verified Answer Key, and
Study Guide for ( 2026 Edition)|Brand NEW!!
The Central Nervous System (CNS) - ANSWER-Includes
the brain and the spinal cord
The Peripheral Nervous System (PNS) - ANSWER-
includes the nerves that connect the Central Nervous
system with the rest of the body
2 parts of nervous tissue - ANSWER-Glia Cells, and
neurons.
,Glia cell - ANSWER-are support cells of the brain
astrocytes, microglia, oligodendrocytes
Astrocytes - ANSWER-makes the blood brain barrier.
Connects to blood vessels and acts as the gate keeper.
Does allot with metabolism, mostly of medication
Microglia - ANSWER-immune cells of the brain. Migrate to
the area of injury, it covers it and cleans it up. It does not
have allot of T or B cells.
Oligodendrocytes - ANSWER-secretes allot of myelin. It is
important for the neuron. Actually wraps around portions of
the neuron.
,Myelin - ANSWER-increases the speed of the neuron. It is
the white matter of the brain and the spinal cord.
Neurons and Glia can grow back - ANSWER-but they
grow back very slowly.
neuron information only travels - ANSWER-in one
direction. That way there is no traffic jams or mixed
signals.
Dendrites - ANSWER-where the information comes in to
the neuron
, Cell Body - ANSWER-houses the nucleus and other cell
structures. Receives signal from the dendrites.
Axon - ANSWER-gets information from the cell body
Axon Terminals - ANSWER-Get information from the axon.
Is where we release all of the neuron transmitters.
Myelin - ANSWER-Not all neurons have ______ but those
that do move information quickly
Afferent Neurons - ANSWER-are sensory neurons. Carries
information to the Central nervous system.