psych102 ch.2 EXAM QUESTIONS
AND CORRECT ANSWERS
(EXPERT VERIFIED) JUST
RELEASED| 2025/2026 | SURE TO
PASS !!
1. chemical reactions - ANSWER ✓ neurons generate electricity
from _____ ____
2. senses, neurons - ANSWER ✓ neurons transmit messages
when stimulated by our _____ or neighboring _____
3. action potential - ANSWER ✓ a neural impulse; a brief
electrical charge that travels down an axon
4. action potential - ANSWER ✓ how does a neuron send a
message?
5. spinal cord - ANSWER ✓ two way information highway
connecting the peripheral nervous system and the brain
,6. sensory, motor-control - ANSWER ✓ ascending neural fibers
send up _______ information, and descending neural fibers
send down _________ information
7. reflex - ANSWER ✓ a simple autonomic response to a
sensory stimulus
8. sensory, motor, interneuron - ANSWER ✓ a simple spinal
reflex pathway is composed of a single _____ neuron and a
single _____ neuron. these often communicate through an
_______
9. endocrine system - ANSWER ✓ the body's "slow" chemical
communication system; a set of glands that secrete hormones
into the bloodstream
10. ions - ANSWER ✓ in neuron's chemistry to electricity
process, ____ are exchanged
11. selectively permeable - ANSWER ✓ a property of cell
membranes that allows some substances to pass through,
while others cannot
12. resting potential - ANSWER ✓ the positive-
outside/negative-inside state of an axon
, 13. threshold - ANSWER ✓ the level of stimulation required to
trigger a neural impulse
14. Depolarization - ANSWER ✓ the loss of the inside/outside
charge difference
15. Repolarization - ANSWER ✓ what is is called when once
the cell reaches its action potential, +40mV, the charge
descents and becomes more negative?
16. excitatory - ANSWER ✓ accelerates neuron's firing speed
17. excitatory - ANSWER ✓ most neural signals are _______,
like pushing a gas pedal.
18. inhibitory - ANSWER ✓ some neural signals are ______,
like pushing the break pedal
19. threshold, action potential - ANSWER ✓ if the excitatory
signal exceeds the inhibitory signals by a _________, the
combined signals trigger and _____ _____
AND CORRECT ANSWERS
(EXPERT VERIFIED) JUST
RELEASED| 2025/2026 | SURE TO
PASS !!
1. chemical reactions - ANSWER ✓ neurons generate electricity
from _____ ____
2. senses, neurons - ANSWER ✓ neurons transmit messages
when stimulated by our _____ or neighboring _____
3. action potential - ANSWER ✓ a neural impulse; a brief
electrical charge that travels down an axon
4. action potential - ANSWER ✓ how does a neuron send a
message?
5. spinal cord - ANSWER ✓ two way information highway
connecting the peripheral nervous system and the brain
,6. sensory, motor-control - ANSWER ✓ ascending neural fibers
send up _______ information, and descending neural fibers
send down _________ information
7. reflex - ANSWER ✓ a simple autonomic response to a
sensory stimulus
8. sensory, motor, interneuron - ANSWER ✓ a simple spinal
reflex pathway is composed of a single _____ neuron and a
single _____ neuron. these often communicate through an
_______
9. endocrine system - ANSWER ✓ the body's "slow" chemical
communication system; a set of glands that secrete hormones
into the bloodstream
10. ions - ANSWER ✓ in neuron's chemistry to electricity
process, ____ are exchanged
11. selectively permeable - ANSWER ✓ a property of cell
membranes that allows some substances to pass through,
while others cannot
12. resting potential - ANSWER ✓ the positive-
outside/negative-inside state of an axon
, 13. threshold - ANSWER ✓ the level of stimulation required to
trigger a neural impulse
14. Depolarization - ANSWER ✓ the loss of the inside/outside
charge difference
15. Repolarization - ANSWER ✓ what is is called when once
the cell reaches its action potential, +40mV, the charge
descents and becomes more negative?
16. excitatory - ANSWER ✓ accelerates neuron's firing speed
17. excitatory - ANSWER ✓ most neural signals are _______,
like pushing a gas pedal.
18. inhibitory - ANSWER ✓ some neural signals are ______,
like pushing the break pedal
19. threshold, action potential - ANSWER ✓ if the excitatory
signal exceeds the inhibitory signals by a _________, the
combined signals trigger and _____ _____
