APHY 201 Ch 8 Neurons Ivy Tech Exam Questions with Correct Answers
Question 1:
Choose an answer 1
Axon 2
Dendrites 3
Neuron 4
Answer:
potentials due to the presence of voltage-gated channels.
Question 2:
Don't know?
Terms in this set (94) Original
Neuron chemical signals. Nerve impulse
Answer:
Myelin
an electrically excitable cell that processes and transmits information through electrical and a
signal transmitted along a nerve fiber. It consists of a wave of electrical depolarization that
reverses the potential difference across the nerve cell membranes. It is the same regardless of
the
Question 3:
Functional Classes of Neurons
Answer:
stimulus. aka action potential
Question 4:
Grouped by direction in which nerve impulse travels relative to CNS
Answer:
Sensory Neurons,
Question 5:
Dendrites, Cell Body, and Axon.
Answer:
General Regions of Neurons
, Question 6:
Receptive region of the neuron along with the cell body. Receive stimuli from the environment
Answer:
Dendrites
Question 7:
Convey incoming messages toward cell body as graded potentials (short distance signals).
Answer:
or from other neurons. Highly branched. Typically covered with ligand-gated ion channels.
Question 8:
Contains the nucleus and other organelles. Biosynthetic center of neuron that synthesizes
potentials to axon hillock due to presence of ligand-gated channels.
Answer:
Cell Body (Perikaryon)
proteins, membranes, and other chemicals. Part of receptive region and can convey graded
Question 9:
Carries information away from the cell body and toward other cells. Can convey action
potentials due to the presence of voltage-gated channels.
Answer:
Axon
Question 10:
Origin of the axon from the cell body.
Answer:
Axon Hillock
Question 11:
This segment of the axon lies distally adjacent to the axon hillock. It is the trigger zone where an
action potential is initiated due to the presence of voltage-gated channels.
Answer:
Initial Segment
Question 1:
Choose an answer 1
Axon 2
Dendrites 3
Neuron 4
Answer:
potentials due to the presence of voltage-gated channels.
Question 2:
Don't know?
Terms in this set (94) Original
Neuron chemical signals. Nerve impulse
Answer:
Myelin
an electrically excitable cell that processes and transmits information through electrical and a
signal transmitted along a nerve fiber. It consists of a wave of electrical depolarization that
reverses the potential difference across the nerve cell membranes. It is the same regardless of
the
Question 3:
Functional Classes of Neurons
Answer:
stimulus. aka action potential
Question 4:
Grouped by direction in which nerve impulse travels relative to CNS
Answer:
Sensory Neurons,
Question 5:
Dendrites, Cell Body, and Axon.
Answer:
General Regions of Neurons
, Question 6:
Receptive region of the neuron along with the cell body. Receive stimuli from the environment
Answer:
Dendrites
Question 7:
Convey incoming messages toward cell body as graded potentials (short distance signals).
Answer:
or from other neurons. Highly branched. Typically covered with ligand-gated ion channels.
Question 8:
Contains the nucleus and other organelles. Biosynthetic center of neuron that synthesizes
potentials to axon hillock due to presence of ligand-gated channels.
Answer:
Cell Body (Perikaryon)
proteins, membranes, and other chemicals. Part of receptive region and can convey graded
Question 9:
Carries information away from the cell body and toward other cells. Can convey action
potentials due to the presence of voltage-gated channels.
Answer:
Axon
Question 10:
Origin of the axon from the cell body.
Answer:
Axon Hillock
Question 11:
This segment of the axon lies distally adjacent to the axon hillock. It is the trigger zone where an
action potential is initiated due to the presence of voltage-gated channels.
Answer:
Initial Segment
