Brain and Behavior Exam 1
Drug treatment is ineffective in about _____ of all cases of epilepsy. correct answers
30% to 40%
Microelectrodes are typically made of: correct answers Insulated wire or glass
Na+-K+ pumps take _____ from the intracellular fluid and inject _____ into the fluid.
correct answers Na+ : K-
Julius Bernstein suggested that _____ produces an electrical potential that is then
utilized in the nervous system. correct answers Neural chemistry
Consider these two statements: (1) An electroencephalogram depicts electrical activity
from the brain; (2) A voltmeter records the difference in electrical potential between two
points. Which statements are correct? correct answers Both statements are correct.
Stimulating an excitatory postsynaptic pathway (EPSP) results in: correct answers
Depolarization
Dilantin is used to treat: correct answers Epilepsy
Jacob is dissecting a Loligo vulgaris and can see giant axons leading to the creature's:
correct answers Mantle
A neuron's input takes the form of specific ions flowing through channels in the
membrane of: correct answers Both its dendrites and its cell body.
If someone says that neural activity travels down an axon in a wave of ionic potential,
they mean that: correct answers Only changes in chemicals travel down the axon.
Lei is in a neuroscience lab studying the axons of a Loligo vulgaris. In order to keep one
of the axons alive and functioning, Lei has: correct answers submerged it in a salty
bath.
Professor Hamid applies a small negative charge inside the membrane of the resting
cell. The result will be _____ of the cell. correct answers Hyperpolarization
One of the first researchers to stimulate the neocortex to produce movement in
nonhuman species was: correct answers Hitzig
, Alina places the tip of a microelectrode on the surface of an axon and inserts the tip of a
second microelectrode into the axon. Alina is attempting to measure: correct answers
Voltage across the cell membrane.
Professor Hickson is studying electrical charges in a single neuron. To do so, the
professor will attach a voltmeter to a(n): correct answers Axon.
Professor Clasen applies a small negative charge inside the membrane of a cell. The
resulting resting potential is MOST likely to be _____ mV. correct answers -73
If Descartes observed a man burning his toe on a flame and consequently pulling his
toe away from the fire, he would think that the leg pulled back because of: correct
answers muscles contracting after becoming full of cerebrospinal fluid.
As Annike creates a diagram of a resting neuron, she makes sure that she places
_____ times as many potassium cells inside the cell as outside it. correct answers 20
Medications aren't helping to control Mackayla's epileptic seizures, so they have
decided to try _____ as an alternative treatment. correct answers - Surgery.
- High-fat/low-carbohydrate ketogenic diet.
Professor Gottlieb is labeling the inside and the outside of a cell diagram in preparation
for a lecture on electrical activity across membranes. Professor Gottlieb follows
convention and labels the outside of a membrane with a charge of _____ mV. correct
answers 0
The Nernst equation calculates the _____ potential—that is, the _____. correct
answers equilibrium; membrane potential for an individual ion, at which there is no net
flow of that ion from one side of the membrane to the other
When a biopsychology instructor mentions the Nernst potential in a lecture, a student
recognizes that the instructor is referring to the _____ potential. correct answers
Equilibrium
Giant depolarizing potentials may be produced by some cells in the brain's developing
_____. correct answers Hippocampus
On small, unmyelinated axons, nerve impulses can only travel at about _____ meters
per second, as compared to 120 m/s on large, myelinated ones. correct answers 30
During tactile stimulation, a(n) _____ stretches, opening stretch-activated channels.
correct answers Dendrite
There are voltage-activated channels on the: correct answers Initial segment
Drug treatment is ineffective in about _____ of all cases of epilepsy. correct answers
30% to 40%
Microelectrodes are typically made of: correct answers Insulated wire or glass
Na+-K+ pumps take _____ from the intracellular fluid and inject _____ into the fluid.
correct answers Na+ : K-
Julius Bernstein suggested that _____ produces an electrical potential that is then
utilized in the nervous system. correct answers Neural chemistry
Consider these two statements: (1) An electroencephalogram depicts electrical activity
from the brain; (2) A voltmeter records the difference in electrical potential between two
points. Which statements are correct? correct answers Both statements are correct.
Stimulating an excitatory postsynaptic pathway (EPSP) results in: correct answers
Depolarization
Dilantin is used to treat: correct answers Epilepsy
Jacob is dissecting a Loligo vulgaris and can see giant axons leading to the creature's:
correct answers Mantle
A neuron's input takes the form of specific ions flowing through channels in the
membrane of: correct answers Both its dendrites and its cell body.
If someone says that neural activity travels down an axon in a wave of ionic potential,
they mean that: correct answers Only changes in chemicals travel down the axon.
Lei is in a neuroscience lab studying the axons of a Loligo vulgaris. In order to keep one
of the axons alive and functioning, Lei has: correct answers submerged it in a salty
bath.
Professor Hamid applies a small negative charge inside the membrane of the resting
cell. The result will be _____ of the cell. correct answers Hyperpolarization
One of the first researchers to stimulate the neocortex to produce movement in
nonhuman species was: correct answers Hitzig
, Alina places the tip of a microelectrode on the surface of an axon and inserts the tip of a
second microelectrode into the axon. Alina is attempting to measure: correct answers
Voltage across the cell membrane.
Professor Hickson is studying electrical charges in a single neuron. To do so, the
professor will attach a voltmeter to a(n): correct answers Axon.
Professor Clasen applies a small negative charge inside the membrane of a cell. The
resulting resting potential is MOST likely to be _____ mV. correct answers -73
If Descartes observed a man burning his toe on a flame and consequently pulling his
toe away from the fire, he would think that the leg pulled back because of: correct
answers muscles contracting after becoming full of cerebrospinal fluid.
As Annike creates a diagram of a resting neuron, she makes sure that she places
_____ times as many potassium cells inside the cell as outside it. correct answers 20
Medications aren't helping to control Mackayla's epileptic seizures, so they have
decided to try _____ as an alternative treatment. correct answers - Surgery.
- High-fat/low-carbohydrate ketogenic diet.
Professor Gottlieb is labeling the inside and the outside of a cell diagram in preparation
for a lecture on electrical activity across membranes. Professor Gottlieb follows
convention and labels the outside of a membrane with a charge of _____ mV. correct
answers 0
The Nernst equation calculates the _____ potential—that is, the _____. correct
answers equilibrium; membrane potential for an individual ion, at which there is no net
flow of that ion from one side of the membrane to the other
When a biopsychology instructor mentions the Nernst potential in a lecture, a student
recognizes that the instructor is referring to the _____ potential. correct answers
Equilibrium
Giant depolarizing potentials may be produced by some cells in the brain's developing
_____. correct answers Hippocampus
On small, unmyelinated axons, nerve impulses can only travel at about _____ meters
per second, as compared to 120 m/s on large, myelinated ones. correct answers 30
During tactile stimulation, a(n) _____ stretches, opening stretch-activated channels.
correct answers Dendrite
There are voltage-activated channels on the: correct answers Initial segment
