WGU D117 OBJECTIVE ASSESSMENT
Comprehensive Resource To Help You Ace
2026-2027 Includes Frequently Tested
Questions With ELABORATED 100% Correct
COMPLETE SOLUTIONS
Guaranteed Pass First Attempt!!
Current Update!!
1. Biological psychologists - ANSWER the scientific study of the links
between biological and psychological processes.
2. Neuron - ANSWER a nerve cell; the basic building block of the nervous
system.
3. Dendrites - ANSWER the bushy, branching extensions of a neuron that
receive messages and conduct impulses toward the cell body.
4. Axon - ANSWER the neuron extension that passes and electrical
messages through its branches to other neurons or to muscles or glands.
5. Myelin sheath - ANSWER a layer of fatty tissue segmentally encasing the
fibers of many neurons; enables vastly greater transmission speed of neural
impulses as the impulse hops from one node to the next.
,6. Action potential - ANSWER a neural impulse; a brief electrical charge
that travels down an axon.
7. Refractory period - ANSWER a period of inactivity after a neuron has
fired.
8. Threshold - ANSWER the level of stimulation required to trigger a neural
impulse.
9. All-or-nothing response - ANSWER a neuron's reaction of either firing or
not firing.
10.Synapse - ANSWER the junction between the axon tip of the sending
neuron and the dendrite or cell body of the receiving neuron. The tiny gap
at this junction is called the synaptic gap or synaptic cleft.
11.Neurotransmitters - ANSWER chemical messengers that cross the
synaptic gaps between neurons. When released by the sending neuron,
they travel across the synapse and bind to receptor sites on the receiving
neuron, thereby influencing whether that neuron will generate a neural
impulse.
12.Reuptake - ANSWER a neurotransmitter's reabsorption by the sending
neuron.
,13.Endorphins - ANSWER "morphine within"—natural, opiate-like
neurotransmitters linked to pain control and to pleasure.
14.Agonist - ANSWER A chemical that mimics the action of a
neurotransmitter.
15.Antagonists - ANSWER Chemical substances that block or reduce a cell's
response to the action of other chemicals or neurotransmitters.
16.Nervous system - ANSWER the body's speedy, electrochemical
communication network, consisting of all the nerve cells of the peripheral
and central nervous systems.
17.Central nervous system (CNS) - ANSWER the brain and the spinal cord
18.Peripheral nervous system (PNS) - ANSWER the sensory and motor
neurons that connect the central nervous system to the rest of the body
19.Nerves - ANSWER bundled axons that form neural "cables" connecting
the central nervous system with muscles, glands, and sense organs.
20.Sensory (afferent) neurons - ANSWER neurons that carry incoming
information from the sensory receptors to the brain and spinal cord.
, 21.Motor (efferant) neurons - ANSWER neurons that carry outgoing
information from the brain and spinal cord to the muscles and glands.
22.Interneurons - ANSWER neurons within the brain and spinal cord that
communicate internally and intervene between the sensory inputs and
motor outputs.
23.Somatic nervous system - ANSWER the division of the peripheral
nervous system that controls the body's skeletal muscles (skeletal nervous
system)
24.Autonomic nervous system - ANSWER the part of the peripheral
nervous system that controls the glands and the muscles of the internal
organs. It's sympathetic system arouses and parasympathetic calms.
25.Sympathetic nervous system - ANSWER the division of the autonomic
nervous system that arouses the body, mobilizing its energy in stressful
situations. (If you get scared)
Parasympathetic nervous system - ANSWER the division of the autonomic
nervous system that calms the body, conserving its energy (Your PARents come
home and calm you down)
Reflexes - ANSWER simple, automatic responses to sensory stimuli, such as
the knee-jerk response
Comprehensive Resource To Help You Ace
2026-2027 Includes Frequently Tested
Questions With ELABORATED 100% Correct
COMPLETE SOLUTIONS
Guaranteed Pass First Attempt!!
Current Update!!
1. Biological psychologists - ANSWER the scientific study of the links
between biological and psychological processes.
2. Neuron - ANSWER a nerve cell; the basic building block of the nervous
system.
3. Dendrites - ANSWER the bushy, branching extensions of a neuron that
receive messages and conduct impulses toward the cell body.
4. Axon - ANSWER the neuron extension that passes and electrical
messages through its branches to other neurons or to muscles or glands.
5. Myelin sheath - ANSWER a layer of fatty tissue segmentally encasing the
fibers of many neurons; enables vastly greater transmission speed of neural
impulses as the impulse hops from one node to the next.
,6. Action potential - ANSWER a neural impulse; a brief electrical charge
that travels down an axon.
7. Refractory period - ANSWER a period of inactivity after a neuron has
fired.
8. Threshold - ANSWER the level of stimulation required to trigger a neural
impulse.
9. All-or-nothing response - ANSWER a neuron's reaction of either firing or
not firing.
10.Synapse - ANSWER the junction between the axon tip of the sending
neuron and the dendrite or cell body of the receiving neuron. The tiny gap
at this junction is called the synaptic gap or synaptic cleft.
11.Neurotransmitters - ANSWER chemical messengers that cross the
synaptic gaps between neurons. When released by the sending neuron,
they travel across the synapse and bind to receptor sites on the receiving
neuron, thereby influencing whether that neuron will generate a neural
impulse.
12.Reuptake - ANSWER a neurotransmitter's reabsorption by the sending
neuron.
,13.Endorphins - ANSWER "morphine within"—natural, opiate-like
neurotransmitters linked to pain control and to pleasure.
14.Agonist - ANSWER A chemical that mimics the action of a
neurotransmitter.
15.Antagonists - ANSWER Chemical substances that block or reduce a cell's
response to the action of other chemicals or neurotransmitters.
16.Nervous system - ANSWER the body's speedy, electrochemical
communication network, consisting of all the nerve cells of the peripheral
and central nervous systems.
17.Central nervous system (CNS) - ANSWER the brain and the spinal cord
18.Peripheral nervous system (PNS) - ANSWER the sensory and motor
neurons that connect the central nervous system to the rest of the body
19.Nerves - ANSWER bundled axons that form neural "cables" connecting
the central nervous system with muscles, glands, and sense organs.
20.Sensory (afferent) neurons - ANSWER neurons that carry incoming
information from the sensory receptors to the brain and spinal cord.
, 21.Motor (efferant) neurons - ANSWER neurons that carry outgoing
information from the brain and spinal cord to the muscles and glands.
22.Interneurons - ANSWER neurons within the brain and spinal cord that
communicate internally and intervene between the sensory inputs and
motor outputs.
23.Somatic nervous system - ANSWER the division of the peripheral
nervous system that controls the body's skeletal muscles (skeletal nervous
system)
24.Autonomic nervous system - ANSWER the part of the peripheral
nervous system that controls the glands and the muscles of the internal
organs. It's sympathetic system arouses and parasympathetic calms.
25.Sympathetic nervous system - ANSWER the division of the autonomic
nervous system that arouses the body, mobilizing its energy in stressful
situations. (If you get scared)
Parasympathetic nervous system - ANSWER the division of the autonomic
nervous system that calms the body, conserving its energy (Your PARents come
home and calm you down)
Reflexes - ANSWER simple, automatic responses to sensory stimuli, such as
the knee-jerk response
