BIOD 102 (2) Questions with CORRECT Answers
Question:
Neurons
Answer:
communicating cells of the nervous system
Question:
Interneurons
Answer:
Connecting neurons that integrate information so a response can occur; usually
part of a circuit; typically attect communication between neurons located in the
same region of the nervous system
Question:
Motor neurons
Answer:
neurons that send outgoing messages from the brain to muscle fibers to elicit a
desired response.
Question:
Dendrite
Answer:
branched extension extending out of a neuron.
Question:
Axon hillock
Answer:
cone shaped area of cell body that meets the axon; where signals (action
potentials) are generated.
Question:
Axon
Answer:
Single extension that serves as the highway for the transport of action
potentials; where the signal travels along
, Question:
Polarization
Answer:
the state of having a ditterence in the charge/voltage across the membrane;
overall charge inside the neuron (negative) is ditterent from the outside of the
neuron (positive)
Question:
Potentials
Answer:
Changes in the membrane's voltage
Question:
Changes in the
Answer:
membrane potential are necessary to initiate and propagate an action potential
(t/f)
Question:
Depolarization
Answer:
The movement of the membrane potential of a cell away from resting potential in a
more positive direction when positive ions flow into the cell or negative ions
flow out.
Question:
If depolarization
Answer:
is large enough, it will initiate the generation of an action potential (t/f)
Question:
Graded poten
Answer:
tials are proportional to the magnitude of the stimulus (t/f)
Question:
Neurons
Answer:
communicating cells of the nervous system
Question:
Interneurons
Answer:
Connecting neurons that integrate information so a response can occur; usually
part of a circuit; typically attect communication between neurons located in the
same region of the nervous system
Question:
Motor neurons
Answer:
neurons that send outgoing messages from the brain to muscle fibers to elicit a
desired response.
Question:
Dendrite
Answer:
branched extension extending out of a neuron.
Question:
Axon hillock
Answer:
cone shaped area of cell body that meets the axon; where signals (action
potentials) are generated.
Question:
Axon
Answer:
Single extension that serves as the highway for the transport of action
potentials; where the signal travels along
, Question:
Polarization
Answer:
the state of having a ditterence in the charge/voltage across the membrane;
overall charge inside the neuron (negative) is ditterent from the outside of the
neuron (positive)
Question:
Potentials
Answer:
Changes in the membrane's voltage
Question:
Changes in the
Answer:
membrane potential are necessary to initiate and propagate an action potential
(t/f)
Question:
Depolarization
Answer:
The movement of the membrane potential of a cell away from resting potential in a
more positive direction when positive ions flow into the cell or negative ions
flow out.
Question:
If depolarization
Answer:
is large enough, it will initiate the generation of an action potential (t/f)
Question:
Graded poten
Answer:
tials are proportional to the magnitude of the stimulus (t/f)
