ASU JP Hyatt: BIO 201 Exam 4 UPDATED
ACTUAL Exam Questions and CORRECT
Answers
What is the cytoplasm of the cell body of a neuron referred to as? - CORRECT
ANSWER - Perikaryon
What is the plasma membrane of the axon known as? - CORRECT ANSWER -
Axolemma
What are the three parts of each synapse? - CORRECT ANSWER - -Presynaptic cell
-Synaptic cleft
-Postsynaptic cell
Tru or false: The synaptic terminal can reabsorb and reuse neurotransmitter present in the
synaptic cleft. - CORRECT ANSWER - True
What are the four different types of neurons? - CORRECT ANSWER - Anaxonic, bipolar,
unipolar, and multipolar
What type of neuron is this? - CORRECT ANSWER - Anaxonic
What type of neuron is this? - CORRECT ANSWER - Unipolar
What type of neuron is this? - CORRECT ANSWER - Bipolar
What type of neuron is this? - CORRECT ANSWER - Multipolar
,Most multipolar neurons are __________. - CORRECT ANSWER - Interneurons
Essentially all bipolar neurons are ____________. - CORRECT ANSWER - Sensory
neurons
Most unipolar neurons are _________. - CORRECT ANSWER - Sensory neurons
Some multipolar neurons can be __________. - CORRECT ANSWER - Motor neurons
Where do afferent neurons carry information? - CORRECT ANSWER - To the spinal cord
Where do efferent neurons carry information? - CORRECT ANSWER - Away from the
spinal cord
What do interneurons do? - CORRECT ANSWER - communicate between neurons.
What is the highly selective permeable membrane with specialized capillaries and neuroglia to
regulate what enters the CSF from the plasma? - CORRECT ANSWER - Blood-brain
barrier
True or false: Myelin surrounds all axons. - CORRECT ANSWER - False
What is the function of myelin? - CORRECT ANSWER - Increase the speed at which the
action potential moves down the axon.
True or false: In white matter the axons are myelinated. - CORRECT ANSWER - True
True or false: In grey matter the axons are unmyelinated. - CORRECT ANSWER - True
, True or false: 1/2 of all neural tissue is comprised of neuroglia? - CORRECT ANSWER -
True
Name the neuroglia of the central nervous system. - CORRECT ANSWER - Ependymal
cells, astrocytes, microglia, oligodendrocytes.
Name the neuroglia of the peripheral nervous system. - CORRECT ANSWER - Satellite
cells, Schwann cells
What is the function of ependymal cells? - CORRECT ANSWER - Generate CSF
What is the function of astrocytes? - CORRECT ANSWER - -Maintain the blood-brain
barrier
-Regulate nutrients
-Structural support
What is the function of microglia? - CORRECT ANSWER - -Act as phagocytes
-Remove waste/ dead cells
What is the function of oligodendrocytes? - CORRECT ANSWER - -Production of myelin
-Structural support
What is the function of satellite cells? - CORRECT ANSWER - -Regulate nutrients at cell
bodies outside the brain & spinal cord
What is the function of Schwann cells? - CORRECT ANSWER - -Myelination outside the
brain and spinal cord
-Repair
ACTUAL Exam Questions and CORRECT
Answers
What is the cytoplasm of the cell body of a neuron referred to as? - CORRECT
ANSWER - Perikaryon
What is the plasma membrane of the axon known as? - CORRECT ANSWER -
Axolemma
What are the three parts of each synapse? - CORRECT ANSWER - -Presynaptic cell
-Synaptic cleft
-Postsynaptic cell
Tru or false: The synaptic terminal can reabsorb and reuse neurotransmitter present in the
synaptic cleft. - CORRECT ANSWER - True
What are the four different types of neurons? - CORRECT ANSWER - Anaxonic, bipolar,
unipolar, and multipolar
What type of neuron is this? - CORRECT ANSWER - Anaxonic
What type of neuron is this? - CORRECT ANSWER - Unipolar
What type of neuron is this? - CORRECT ANSWER - Bipolar
What type of neuron is this? - CORRECT ANSWER - Multipolar
,Most multipolar neurons are __________. - CORRECT ANSWER - Interneurons
Essentially all bipolar neurons are ____________. - CORRECT ANSWER - Sensory
neurons
Most unipolar neurons are _________. - CORRECT ANSWER - Sensory neurons
Some multipolar neurons can be __________. - CORRECT ANSWER - Motor neurons
Where do afferent neurons carry information? - CORRECT ANSWER - To the spinal cord
Where do efferent neurons carry information? - CORRECT ANSWER - Away from the
spinal cord
What do interneurons do? - CORRECT ANSWER - communicate between neurons.
What is the highly selective permeable membrane with specialized capillaries and neuroglia to
regulate what enters the CSF from the plasma? - CORRECT ANSWER - Blood-brain
barrier
True or false: Myelin surrounds all axons. - CORRECT ANSWER - False
What is the function of myelin? - CORRECT ANSWER - Increase the speed at which the
action potential moves down the axon.
True or false: In white matter the axons are myelinated. - CORRECT ANSWER - True
True or false: In grey matter the axons are unmyelinated. - CORRECT ANSWER - True
, True or false: 1/2 of all neural tissue is comprised of neuroglia? - CORRECT ANSWER -
True
Name the neuroglia of the central nervous system. - CORRECT ANSWER - Ependymal
cells, astrocytes, microglia, oligodendrocytes.
Name the neuroglia of the peripheral nervous system. - CORRECT ANSWER - Satellite
cells, Schwann cells
What is the function of ependymal cells? - CORRECT ANSWER - Generate CSF
What is the function of astrocytes? - CORRECT ANSWER - -Maintain the blood-brain
barrier
-Regulate nutrients
-Structural support
What is the function of microglia? - CORRECT ANSWER - -Act as phagocytes
-Remove waste/ dead cells
What is the function of oligodendrocytes? - CORRECT ANSWER - -Production of myelin
-Structural support
What is the function of satellite cells? - CORRECT ANSWER - -Regulate nutrients at cell
bodies outside the brain & spinal cord
What is the function of Schwann cells? - CORRECT ANSWER - -Myelination outside the
brain and spinal cord
-Repair
