BIOD 102 Exam 3 – Portage Learning Verified Questions &
Answers, Study Guide & Practice Test (Nervous, Muscle &
Cardiovascular Systems)
This document contains:
✓ BIOD 102 Exam 3 answers
✓ Portage Learning BIOD 102 Exam 3
✓ BIOD 102 Exam 3 study guide
✓ BIOD 102 nervous muscle cardiovascular exam
✓ BIOD 102 Exam 3 practice test
,Neurons - correct answers ✔✔communicating cells of the nervous system
Sensory neurons - correct answers ✔✔neurons that receive information from
the external and internal environment and transmit the information to the
brain
Interneurons - correct answers ✔✔Connecting neurons that integrate
information so a response can occur; usually part of a circuit; typically affect
communication between neurons located in the same region of the nervous
system
Motor neurons - correct answers ✔✔neurons that send outgoing messages
from the brain to muscle fibers to elicit a desired response.
Cell body of neuron - correct answers ✔✔contains nucleus and organelles
Dendrite - correct answers ✔✔branched extension extending out of a
neuron.
Axon hillock - correct answers ✔✔cone shaped area of cell body that meets
the axon; where signals (action potentials) are generated.
Axon - correct answers ✔✔Single extension that serves as the highway for
the transport of action potentials; where the signal travels along
Synaptic terminals - correct answers ✔✔Ends of axons that form one side of
the synaptic cleft; forms junction with the next neuron/target cell; location
where neurotransmitters are stored.
, What is responsible for collectively receiving signals from other cells? -
correct answers ✔✔dendrites and cell body
Where are signals (action potentials) generated? - correct answers ✔✔axon
hillock
Polarization - correct answers ✔✔the state of having a difference in the
charge/voltage across the membrane; overall charge inside the neuron
(negative) is different from the outside of the neuron (positive)
Potentials - correct answers ✔✔Changes in the membrane's voltage
Resting membrane potentials - correct answers ✔✔Membrane voltage inside
the neuron when the neuron is not actively firing (-70 mV), outside of
neuron is positive charge
Action potential - correct answers ✔✔a neural impulse; how information is
transmitted along the neuron; a brief electrical charge that travels down an
axon
Gated ion channels - correct answers ✔✔ion channels that open or close in
response to stimuli; typically closed to prevent flow of ions out of the cell.
2 types of gated ion channels - correct answers ✔✔Voltage-gated ion
channels, Ligand-gated ion channels
Answers, Study Guide & Practice Test (Nervous, Muscle &
Cardiovascular Systems)
This document contains:
✓ BIOD 102 Exam 3 answers
✓ Portage Learning BIOD 102 Exam 3
✓ BIOD 102 Exam 3 study guide
✓ BIOD 102 nervous muscle cardiovascular exam
✓ BIOD 102 Exam 3 practice test
,Neurons - correct answers ✔✔communicating cells of the nervous system
Sensory neurons - correct answers ✔✔neurons that receive information from
the external and internal environment and transmit the information to the
brain
Interneurons - correct answers ✔✔Connecting neurons that integrate
information so a response can occur; usually part of a circuit; typically affect
communication between neurons located in the same region of the nervous
system
Motor neurons - correct answers ✔✔neurons that send outgoing messages
from the brain to muscle fibers to elicit a desired response.
Cell body of neuron - correct answers ✔✔contains nucleus and organelles
Dendrite - correct answers ✔✔branched extension extending out of a
neuron.
Axon hillock - correct answers ✔✔cone shaped area of cell body that meets
the axon; where signals (action potentials) are generated.
Axon - correct answers ✔✔Single extension that serves as the highway for
the transport of action potentials; where the signal travels along
Synaptic terminals - correct answers ✔✔Ends of axons that form one side of
the synaptic cleft; forms junction with the next neuron/target cell; location
where neurotransmitters are stored.
, What is responsible for collectively receiving signals from other cells? -
correct answers ✔✔dendrites and cell body
Where are signals (action potentials) generated? - correct answers ✔✔axon
hillock
Polarization - correct answers ✔✔the state of having a difference in the
charge/voltage across the membrane; overall charge inside the neuron
(negative) is different from the outside of the neuron (positive)
Potentials - correct answers ✔✔Changes in the membrane's voltage
Resting membrane potentials - correct answers ✔✔Membrane voltage inside
the neuron when the neuron is not actively firing (-70 mV), outside of
neuron is positive charge
Action potential - correct answers ✔✔a neural impulse; how information is
transmitted along the neuron; a brief electrical charge that travels down an
axon
Gated ion channels - correct answers ✔✔ion channels that open or close in
response to stimuli; typically closed to prevent flow of ions out of the cell.
2 types of gated ion channels - correct answers ✔✔Voltage-gated ion
channels, Ligand-gated ion channels
