PSY 121 Unit 2 MSU questions with
verified answers passed
Myelin sheath - ANS ✔Which part of the neuron improves the speed of the neural impulse?
Action potential - ANS ✔What is the brief electrical impulse that travels down the axon called?
positively charged - ANS ✔At its resting state, the outside of a neuron is more ______________
than the inside of the neuron.
positively; electrical - ANS ✔An action potential occurs when the inside of a cell becomes more
__________ charged and the ___________ charge moves down the axon.
synaptic vesicles; synapse - ANS ✔In the process of neurotransmission, the action potential
causes neurotransmitters to be released from the ______________ into the _______________.
Glutamate - ANS ✔Danny has terrible migraines that interfere with his ability to complete his
work. He just learned from his psychology class that the migraines could be caused by an
overabundance of which neurotransmitter?
True - ANS ✔You are born with all the brain cells you will ever have in life. While the
connections strengthen with age, you are not able to grow more brain cells.
negative; positive - ANS ✔A neuron at rest maintains a _____________ charge due to the
presence of a high number of _________ charged ions inside the neuron.
,stimulation depolarizes the cell by making the inside of the cell more positive --> a threshold is
reached triggering an action potential --> the electrical charge moves down to the end of the
axon. - ANS ✔An action potential consists of the following stages:
4---> 6--->5 - ANS ✔Choose the correct order of the three steps that occur during an action
potential:
1. The threshold is not reached.
2. The inside of the cell becomes more negatively charged.
3. The electrical charge stops where it is.
4. The inside of the cell becomes more positively charged.
5. The electrical charge moves down the axon.
6. The threshold is reached.
terminal buttons; vesicles; synapse - ANS ✔Action potentials are both electrical and chemical.
The chemical part of the action potential takes place when the impulse reaches the
___________, and causes the ____________ to release the neurotransmitter into the
________________.
3 --> 2 --> 4 - ANS ✔Choose the correct order of three of the steps that occur during
neurotransmission:
1. The action potential reaches the dendrites of the neuron.
2. The synaptic vesicles burst.
3. The action potential reaches the terminal buttons.
4. The neurotransmitter is released into the synapse.
5. The neurotransmitter is released from the soma.
6. Sodium is released into the s
agonist - ANS ✔A drug like nicotine that produces a biological response in the brain is called a(n)
______________.
, eflex; spinal cord - ANS ✔When you touch a hot stove and immediately withdraw your hand, it
is called a ________ and is the result of interneurons within the __________.
turn into other specialized cells in the body - ANS ✔Clayton incurred a spinal cord injury, and
the doctors wanted to enroll him in a clinical trial that used stem cells in the treatment. Stem
cells are special because they can ______________________________.
hormones - ANS ✔Chemical substances in the body that regulate bodily activities such as
growth, metabolism, and sexual reproduction are called ____________.
Pituitary gland - ANS ✔The endocrine system consists of many glands that release hormones for
different functions. Which gland is considered the master gland that communicates with all the
other glands?
Hypothyroidism - ANS ✔Javier has been complaining of being fatigued, cold, and depressed
lately. His doctor decides to run some tests on his endocrine system. What condition might the
doctor test for given his symptoms?
synaptic plasticity - ANS ✔Tomas has been playing the piano since age 5. Throughout his
adolescence, he also taught himself to play guitar, bass, and the drums. Due to his practice with
musical instruments, Tomas's brain would show improved ________.
PET) - ANS ✔How do the brains of children and adults differ with regard to energy
consumption?
EEG - ANS ✔2. In what ways do brain waves change as a person falls asleep? METHOD =
CT - ANS ✔3. What is the precise location of a suspected brain tumor?
verified answers passed
Myelin sheath - ANS ✔Which part of the neuron improves the speed of the neural impulse?
Action potential - ANS ✔What is the brief electrical impulse that travels down the axon called?
positively charged - ANS ✔At its resting state, the outside of a neuron is more ______________
than the inside of the neuron.
positively; electrical - ANS ✔An action potential occurs when the inside of a cell becomes more
__________ charged and the ___________ charge moves down the axon.
synaptic vesicles; synapse - ANS ✔In the process of neurotransmission, the action potential
causes neurotransmitters to be released from the ______________ into the _______________.
Glutamate - ANS ✔Danny has terrible migraines that interfere with his ability to complete his
work. He just learned from his psychology class that the migraines could be caused by an
overabundance of which neurotransmitter?
True - ANS ✔You are born with all the brain cells you will ever have in life. While the
connections strengthen with age, you are not able to grow more brain cells.
negative; positive - ANS ✔A neuron at rest maintains a _____________ charge due to the
presence of a high number of _________ charged ions inside the neuron.
,stimulation depolarizes the cell by making the inside of the cell more positive --> a threshold is
reached triggering an action potential --> the electrical charge moves down to the end of the
axon. - ANS ✔An action potential consists of the following stages:
4---> 6--->5 - ANS ✔Choose the correct order of the three steps that occur during an action
potential:
1. The threshold is not reached.
2. The inside of the cell becomes more negatively charged.
3. The electrical charge stops where it is.
4. The inside of the cell becomes more positively charged.
5. The electrical charge moves down the axon.
6. The threshold is reached.
terminal buttons; vesicles; synapse - ANS ✔Action potentials are both electrical and chemical.
The chemical part of the action potential takes place when the impulse reaches the
___________, and causes the ____________ to release the neurotransmitter into the
________________.
3 --> 2 --> 4 - ANS ✔Choose the correct order of three of the steps that occur during
neurotransmission:
1. The action potential reaches the dendrites of the neuron.
2. The synaptic vesicles burst.
3. The action potential reaches the terminal buttons.
4. The neurotransmitter is released into the synapse.
5. The neurotransmitter is released from the soma.
6. Sodium is released into the s
agonist - ANS ✔A drug like nicotine that produces a biological response in the brain is called a(n)
______________.
, eflex; spinal cord - ANS ✔When you touch a hot stove and immediately withdraw your hand, it
is called a ________ and is the result of interneurons within the __________.
turn into other specialized cells in the body - ANS ✔Clayton incurred a spinal cord injury, and
the doctors wanted to enroll him in a clinical trial that used stem cells in the treatment. Stem
cells are special because they can ______________________________.
hormones - ANS ✔Chemical substances in the body that regulate bodily activities such as
growth, metabolism, and sexual reproduction are called ____________.
Pituitary gland - ANS ✔The endocrine system consists of many glands that release hormones for
different functions. Which gland is considered the master gland that communicates with all the
other glands?
Hypothyroidism - ANS ✔Javier has been complaining of being fatigued, cold, and depressed
lately. His doctor decides to run some tests on his endocrine system. What condition might the
doctor test for given his symptoms?
synaptic plasticity - ANS ✔Tomas has been playing the piano since age 5. Throughout his
adolescence, he also taught himself to play guitar, bass, and the drums. Due to his practice with
musical instruments, Tomas's brain would show improved ________.
PET) - ANS ✔How do the brains of children and adults differ with regard to energy
consumption?
EEG - ANS ✔2. In what ways do brain waves change as a person falls asleep? METHOD =
CT - ANS ✔3. What is the precise location of a suspected brain tumor?
