ASU BIO 181 EXAM 3 LATEST ACTUAL EXAM 100
QUESTIONS AND CORERCT DETAILED ANSWERS
(VERIFIED ANSWERS) |ALREADY GRADED A+
Terms in this set (100)
Excitatory synapses make False
the post-synaptic cell less
likely to fire.
The neural tissues are: Spinal cord, sensory neurons, and brain
How do the glial cells (i.e., The cell wraps extensions of a fatty insulating substance
myelin sheath) speed up the (myelin) around the axons of neurons.
firing of neurons?
The action potential is: A result of the movement of ions.
Receptors are made from True
membrane-bound
polyribosomes.
Microglia: cleans up cellular debris- Astrocytes: support
List the 4 types of glial cells
and repair neurons- Schwann Cells: myelinates axons of
and list a phrase to
the neurons in the PNS- Satellite: form the brain-blood
describe their function.
barrier within the CNS
Acetylcholine exocytosed True
from the presynaptic cell
travels to the postsynaptic
cell to start the action
potential in the
postsynaptic cell.
, When the presynaptic cell True
contacts a muscle cell, the
synapse area is called a
motor end plate.
Potassium ions are at high True
concentrations inside of
cells including in neurons.
The membrane potential True
(resting potential) is largely
set by the Na-K- ATPase
pump.
Draw an action potential in
the axon of a neuron and
indicate which ions flow into
the neuron and out of the
neuron as the action
potential passes at the point
where the electrodes are in
the cell. Be sure to assign
on the Y-axis the mV of each
of these areas. This should
be as described in my
lectures.
Fast neurons as described False
in lecture are fast because
they are surrounded by a
type of glial cell that results
in a myelin coating.
Voltage-gated ion channels False
open when a protein binds
to the receptor.
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