PSYC 101 Units 3 & 4 Module
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A neurotransmitter is defined as
a. a brain disease that results in loss of memory and motor control
b. a chemical substance that carries information in the nervous system
C. the part of the brain that controls speech and language functions
d. the part of the neuron that receives information from other neurons ANSW ✔✔ c
The portion of the nerve cell from which information is passed to other nerve cells is called
the
a. cell body.
b. myelin sheath.
C. axon terminal.
d. dendrite. ANSW ✔✔ c
The portion of the nerve cell from which information is passed to other nerve cells is called
the
a. cell body.
b. myelin sheath.
C. axon terminal.
d. dendrite. ANSW ✔✔ c
____ carry information to the brain.
Sensory neurons
,Motor neurons
Interneurons
Involuntary neurons ANSW ✔✔ sensory neurons
A myelin sheath
a. increases the velocity that the electrical impulses (carrying the messages) travel through
the axon
b. cannot prevent messages from short-circuiting on another
c. fire neurons
d. is the sensory apparatus involved in balance ANSW ✔✔ a
Which of the following is NOT one of the functions of glial cells?
They communicate messages within the nervous system.
They help repair damage that might occur to neurons.
They provide nourishment to neurons.
They nourish nerve cells. ANSW ✔✔ a
, The "all-or-none law" refers to which fact about the nervous system?
a. More intense stimuli provoke stronger action potentials.
b. Neurons are either "on" or "off"; there is no in-between.
c. Neurons will die if they do not have enough blood supply.
d. People cannot function if parts of their brains are removed. ANSW ✔✔ b
______ prevent or decrease the likelihood that a receiving neuron will fire.
a. Myelinated neurons
b. Dopamine neurotransmitters
c. Excitatory messages
d. Inhibitory neurons ANSW ✔✔ d
Motor neurons are also called ____ neurons and communicate information from the
nervous system to muscles and glands.
afferent
efferent
sensory
mirror ANSW ✔✔ e
The chemical substances that communicate information from one neuron to another are
called
Questions – 100% Correct, Expert
Verified Answers with A+ Grade
Assurance
A neurotransmitter is defined as
a. a brain disease that results in loss of memory and motor control
b. a chemical substance that carries information in the nervous system
C. the part of the brain that controls speech and language functions
d. the part of the neuron that receives information from other neurons ANSW ✔✔ c
The portion of the nerve cell from which information is passed to other nerve cells is called
the
a. cell body.
b. myelin sheath.
C. axon terminal.
d. dendrite. ANSW ✔✔ c
The portion of the nerve cell from which information is passed to other nerve cells is called
the
a. cell body.
b. myelin sheath.
C. axon terminal.
d. dendrite. ANSW ✔✔ c
____ carry information to the brain.
Sensory neurons
,Motor neurons
Interneurons
Involuntary neurons ANSW ✔✔ sensory neurons
A myelin sheath
a. increases the velocity that the electrical impulses (carrying the messages) travel through
the axon
b. cannot prevent messages from short-circuiting on another
c. fire neurons
d. is the sensory apparatus involved in balance ANSW ✔✔ a
Which of the following is NOT one of the functions of glial cells?
They communicate messages within the nervous system.
They help repair damage that might occur to neurons.
They provide nourishment to neurons.
They nourish nerve cells. ANSW ✔✔ a
, The "all-or-none law" refers to which fact about the nervous system?
a. More intense stimuli provoke stronger action potentials.
b. Neurons are either "on" or "off"; there is no in-between.
c. Neurons will die if they do not have enough blood supply.
d. People cannot function if parts of their brains are removed. ANSW ✔✔ b
______ prevent or decrease the likelihood that a receiving neuron will fire.
a. Myelinated neurons
b. Dopamine neurotransmitters
c. Excitatory messages
d. Inhibitory neurons ANSW ✔✔ d
Motor neurons are also called ____ neurons and communicate information from the
nervous system to muscles and glands.
afferent
efferent
sensory
mirror ANSW ✔✔ e
The chemical substances that communicate information from one neuron to another are
called
