Portage BIOD 152 Module 1
Exam Study Guide and
Practice Questions
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, Portage Biod 152 module 1 exam 2026-04-10 Portage Biod 152 module 1 exam.pdf
Portage Biod 152 module 1 exam
Study online at https://quizlet.com/_cnn5ol
this is a collection of cell bodies found in the peripheral nervous system ganglia
This part of the autonomic system accelerates the heart beat and increases breathing rate. sympathetic nervous system
the dorsal root of a nerve contains what type of neurons? sensory/ afferent
this part of a neuron conducts nerve impulses towards the cell body dendrites
A neuron going to the bicep of the forearm is part of the: central nervous system and autonomic nervous system
bipolar
the neuron pictured below is best described as
T/F: neurons do not physically touch one another true
-neurotransmitters are chemicals stored inside secretory vesicles (axon terminal vesicles) at
the end of the axon terminals
describe the function and release of neurotransmitters
-when neurotransmitters are released by the axon terminal vesicles, they carry the transmis-
sion of the nerve impulse from one neuron to another
an afferent neuron carries information: From the peripheral to the central nervous system
a postsynaptic neuron would be found: after the synapse
-PNS
what is the location and function of satellite cells?
-regulation of environment of neuron cell bodies
a patient's thumb was severed in a cooking accident and then reattached during surgery. yes; PNS nerves can regenerate the length of the axon through axonal regeneration because
would the patient be expected to regrow axons in their thumb? why or why not of the growth of Schwann cells ahead of the axon
-depolarization: the sodium gates open and sodium rushes into the axon during the depo-
larization phase of the action potential
-voltage travels past zero and then on up to +40mV
name and describe what is occurring in the neuron cell membrane in section 2 of the diagram.
include the charge of the membrane during this phase
at rest, a neuron plasma membrane is: Polarized (around -70mV)
which of the following is false concerning the sodium potassium pump the overall effect is a negative charge on the outside of the membrane
T/F: a sensory neuron is signaling the body of a light touch. this means that the strength of False. there is no variation in the strength of action potentials (it is an all or nothing response)
the action potential is weaker than usual. explain your reasoning. there is variation in the number and frequency of neurons firing.
which of the following statements is true concerning the neuromuscular junction The NMJ terminates on a muscle fiber
What prevents continuous stimulation of a nerve synapse and how is this accomplished?
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