PSYC 2301 EXAM 1 STUDY GUIDE 2026 TESTED
QUESTIONS AND PRACTICE SOLUTION
GRADED A+
◉ synapse.
Answer: - tiny gap btwn terminal bud of one axon and neighboring
dendrite
- junction between neurons where communication occurs
- DSAT
◉ myelin sheath.
Answer: insulating covering that surrounds an axon with multiple
spiral layers of myelin
◉ glial cells.
Answer: surround neurons and provide support for and insulation
between them
◉ sensory neurons.
Answer: - bring input to brain; light or sound, smell, taste, skin
senses, info from internal organs
- communicate info from environment to central nervous system
,◉ motor neurons.
Answer: - communicate info to muscles and glands of body
- communicate info from central nervous system to muscles
◉ inter-neurons.
Answer: - communicate info between neurons
- most of neurons in nervous system are these
◉ neuron electrical charge.
Answer: moving positive and negative ions back and forth through
its outer membrane
◉ action potential.
Answer: occurs when the membrane potential of a specific axon
location rapidly rises and falls
◉ refractory period.
Answer: a period immediately following stimulation during which a
nerve or muscle is unresponsive to further stimulation
◉ nodes of ranvier.
, Answer: a gap in the myelin sheath of a nerve, between adjacent
Schwann cells.
◉ saltatory conduction.
Answer: propagation of action potentials along myelinated axons
from one node of Ranvier to the next node
◉ vesicles.
Answer: fluid- or air-filled cavity or sac
◉ acetylcholine.
Answer: - triggers muscles to contract
- first neurostransmitter discovered
- blocking this has bad effects
◉ Dopamine.
Answer: plays central role in positive reinforcement and
dependency
◉ endorphins.
Answer: reduces pain and elevates mood
QUESTIONS AND PRACTICE SOLUTION
GRADED A+
◉ synapse.
Answer: - tiny gap btwn terminal bud of one axon and neighboring
dendrite
- junction between neurons where communication occurs
- DSAT
◉ myelin sheath.
Answer: insulating covering that surrounds an axon with multiple
spiral layers of myelin
◉ glial cells.
Answer: surround neurons and provide support for and insulation
between them
◉ sensory neurons.
Answer: - bring input to brain; light or sound, smell, taste, skin
senses, info from internal organs
- communicate info from environment to central nervous system
,◉ motor neurons.
Answer: - communicate info to muscles and glands of body
- communicate info from central nervous system to muscles
◉ inter-neurons.
Answer: - communicate info between neurons
- most of neurons in nervous system are these
◉ neuron electrical charge.
Answer: moving positive and negative ions back and forth through
its outer membrane
◉ action potential.
Answer: occurs when the membrane potential of a specific axon
location rapidly rises and falls
◉ refractory period.
Answer: a period immediately following stimulation during which a
nerve or muscle is unresponsive to further stimulation
◉ nodes of ranvier.
, Answer: a gap in the myelin sheath of a nerve, between adjacent
Schwann cells.
◉ saltatory conduction.
Answer: propagation of action potentials along myelinated axons
from one node of Ranvier to the next node
◉ vesicles.
Answer: fluid- or air-filled cavity or sac
◉ acetylcholine.
Answer: - triggers muscles to contract
- first neurostransmitter discovered
- blocking this has bad effects
◉ Dopamine.
Answer: plays central role in positive reinforcement and
dependency
◉ endorphins.
Answer: reduces pain and elevates mood
