NU670 FINAL TEST 2026 QUESTIONS
WITH CORRECT ANSWERS GRADED
A+
◍ Nervous System.
Answer: The system that includes the peripheral and central nervous system.
◍ Somatic Nervous System.
Answer: Part of CNS that controls movement of skeletal muscle.
◍ Sympathetic Nervous System.
Answer: Excitatory system responsible for fight or flight responses.
◍ Parasympathetic Nervous System.
Answer: Calming system that promotes rest and digest functions.
◍ What is the central nervous system (CNS)?.
Answer: The CNS consists of the brain and spinal cord, responsible for
processing and transmitting information throughout the body.
◍ Autonomic Nervous System.
Answer: Part of the CNS that controls self-regulating actions and internal
organs.
◍ Glial Cells.
Answer: Structures that form the myelin sheath around neurons.
◍ Dendrites.
Answer: Fingers that receive information to the cell body.
◍ Axon.
Answer: Carries information away from the cell body.
◍ Synapse.
, Answer: Connection site for communication between neurons.
◍ Action Potential.
Answer: An electrical signal that travels along the neuron.
◍ Depolarization.
Answer: Excitatory response where calcium and sodium ions flow into the
cell.
◍ Repolarization.
Answer: Resting period where potassium leaves the cell and chloride enters.
◍ Neurotransmitters.
Answer: Chemicals that transmit signals across a synapse.
◍ Criteria for Neurotransmitters.
Answer: Must be present in neuroterminal, released in sufficient quantities,
and metabolized at the synapse.
◍ What is the peripheral nervous system (PNS)?.
Answer: The PNS includes all the nerves outside the CNS, connecting the
brain and spinal cord to the rest of the body.
◍ Dopamine (DA).
Answer: A neurotransmitter with a precursor of tyrosine, involved in
cognition and motor control.
◍ What does the somatic nervous system control?.
Answer: The somatic nervous system controls voluntary movements and
transmits sensory information to the CNS.
◍ What is the role of the autonomic nervous system?.
Answer: The autonomic nervous system regulates involuntary bodily
functions, such as heart rate and digestion.
◍ Norepinephrine (NE).
Answer: A neurotransmitter with a precursor of tyrosine, involved in mood
and anxiety.
, ◍ What is the difference between the sympathetic and parasympathetic
nervous systems?.
Answer: The sympathetic nervous system prepares the body for 'fight or
flight' responses, while the parasympathetic nervous system promotes 'rest
and digest' activities.
◍ Epinephrine (E).
Answer: A neurotransmitter produced by the adrenal glands, involved in
fight or flight response.
◍ What are neurons?.
Answer: Neurons are the primary cells of the nervous system that transmit
information through electrical and chemical signals.
◍ Serotonin (5HT).
Answer: A neurotransmitter with a precursor of tryptophan, involved in
mood and anxiety.
◍ Mesocortical Pathway.
Answer: Dopamine pathway related to cognition and executive function.
◍ Mesolimbic Pathway.
Answer: Dopamine pathway regulating emotion, associated with positive
symptoms of schizophrenia.
◍ What are glial cells?.
Answer: Glial cells support and protect neurons, providing structural
support, insulation, and nutrients.
◍ What is the function of dendrites?.
Answer: Dendrites receive signals from other neurons and transmit them to
the cell body.
◍ What is the role of axons?.
Answer: Axons transmit electrical impulses away from the neuron's cell
body to other neurons or muscles.
◍ Nigrostriatal Pathway.
WITH CORRECT ANSWERS GRADED
A+
◍ Nervous System.
Answer: The system that includes the peripheral and central nervous system.
◍ Somatic Nervous System.
Answer: Part of CNS that controls movement of skeletal muscle.
◍ Sympathetic Nervous System.
Answer: Excitatory system responsible for fight or flight responses.
◍ Parasympathetic Nervous System.
Answer: Calming system that promotes rest and digest functions.
◍ What is the central nervous system (CNS)?.
Answer: The CNS consists of the brain and spinal cord, responsible for
processing and transmitting information throughout the body.
◍ Autonomic Nervous System.
Answer: Part of the CNS that controls self-regulating actions and internal
organs.
◍ Glial Cells.
Answer: Structures that form the myelin sheath around neurons.
◍ Dendrites.
Answer: Fingers that receive information to the cell body.
◍ Axon.
Answer: Carries information away from the cell body.
◍ Synapse.
, Answer: Connection site for communication between neurons.
◍ Action Potential.
Answer: An electrical signal that travels along the neuron.
◍ Depolarization.
Answer: Excitatory response where calcium and sodium ions flow into the
cell.
◍ Repolarization.
Answer: Resting period where potassium leaves the cell and chloride enters.
◍ Neurotransmitters.
Answer: Chemicals that transmit signals across a synapse.
◍ Criteria for Neurotransmitters.
Answer: Must be present in neuroterminal, released in sufficient quantities,
and metabolized at the synapse.
◍ What is the peripheral nervous system (PNS)?.
Answer: The PNS includes all the nerves outside the CNS, connecting the
brain and spinal cord to the rest of the body.
◍ Dopamine (DA).
Answer: A neurotransmitter with a precursor of tyrosine, involved in
cognition and motor control.
◍ What does the somatic nervous system control?.
Answer: The somatic nervous system controls voluntary movements and
transmits sensory information to the CNS.
◍ What is the role of the autonomic nervous system?.
Answer: The autonomic nervous system regulates involuntary bodily
functions, such as heart rate and digestion.
◍ Norepinephrine (NE).
Answer: A neurotransmitter with a precursor of tyrosine, involved in mood
and anxiety.
, ◍ What is the difference between the sympathetic and parasympathetic
nervous systems?.
Answer: The sympathetic nervous system prepares the body for 'fight or
flight' responses, while the parasympathetic nervous system promotes 'rest
and digest' activities.
◍ Epinephrine (E).
Answer: A neurotransmitter produced by the adrenal glands, involved in
fight or flight response.
◍ What are neurons?.
Answer: Neurons are the primary cells of the nervous system that transmit
information through electrical and chemical signals.
◍ Serotonin (5HT).
Answer: A neurotransmitter with a precursor of tryptophan, involved in
mood and anxiety.
◍ Mesocortical Pathway.
Answer: Dopamine pathway related to cognition and executive function.
◍ Mesolimbic Pathway.
Answer: Dopamine pathway regulating emotion, associated with positive
symptoms of schizophrenia.
◍ What are glial cells?.
Answer: Glial cells support and protect neurons, providing structural
support, insulation, and nutrients.
◍ What is the function of dendrites?.
Answer: Dendrites receive signals from other neurons and transmit them to
the cell body.
◍ What is the role of axons?.
Answer: Axons transmit electrical impulses away from the neuron's cell
body to other neurons or muscles.
◍ Nigrostriatal Pathway.
