Question 1

The substance curare, which is used by native South Americans for poisoning the tip of arrowheads,

Accepted Answer

A)  selectively blocks sodium channels. 
B)  selectively blocks potassium channels. 
C)  increases levels of acetylcholinesterase. 
D)  blocks acetylcholine receptors. 
A)  selectively blocks sodium channels. 
B)  selectively blocks potassium channels. 
C)  increases levels of acetylcholinesterase. 
D)  blocks acetylcholine receptors.

Question 2

During the _______ phase, an action potential cannot be initiated because Na+ channels are unresponsive.

Accepted Answer

Question 3

Give a step-by-step description of the generation of an action potential and its transmission along an axon. Describe how the presence or absence of myelin affects this process.

Accepted Answer

The generation of an action potential an

Question 4

Spike-and-wave EEG activity is evident for _______ seconds during a simple partial seizure.

Accepted Answer

A)  1‒5 
B)  5‒15 
C)  15‒30 
D)  30‒45 
A)  1‒5 
B)  5‒15 
C)  15‒30 
D)  30‒45

Question 5

Axo-axonic synapses

Accepted Answer

A)  do not exist in mammalian species. 
B)  often terminate near the axon terminal. 
C)  often terminate on the dendritic spine. 
D)  are always inhibitory. 
A)  do not exist in mammalian species. 
B)  often terminate near the axon terminal. 
C)  often terminate on the dendritic spine. 
D)  are always inhibitory.

Question 6

During an action potential, the small potential change after a spike is called the _______.

Accepted Answer

The answer of During an action potential, the small potential...

Question 7

Stimulation studies were able to create "maps" of how the various parts of the body are laid out on the cortex. These maps provided the basis for the cartoon depiction of areas of greatest representation in the brain. This cartoon depiction is referred to as the

Accepted Answer

A)  homunculus. 
B)  petite fille. 
C)  grand homme. 
D)  mini-self. 
A)  homunculus. 
B)  petite fille. 
C)  grand homme. 
D)  mini-self.

Question 8

What are event-related potentials, and how are they useful in studying the workings of the normal brain?

Accepted Answer

Event-related potentials (ERPs) are a ty

Question 9

_______velocity refers to the speed at which an action potential travels down the axon.

Accepted Answer

The answer of _______velocity refers to the speed at which...

Question 10

If you were to record EEG from six parts of the brain during a tonic-clonic seizure, you would see

Accepted Answer

A)  different gradations of spiking activity. 
B)  the same relative intensity of spiking from each part of the brain. 
C)  variable intensity of spiking depending on the locus of seizure onset. 
D)  no activity in brainstem structures during the seizure. 
A)  different gradations of spiking activity. 
B)  the same relative intensity of spiking from each part of the brain. 
C)  variable intensity of spiking depending on the locus of seizure onset. 
D)  no activity in brainstem structures during the seizure.

Question 11

Myelin increases the speed of conduction because it

Accepted Answer

A)  offers little resistance to the flow of ionic current. 
B)  releases special chemicals that aid conduction. 
C)  increases ionic transfer across the membrane. 
D)  offers considerable resistance to the flow of ionic current. 
A)  offers little resistance to the flow of ionic current. 
B)  releases special chemicals that aid conduction. 
C)  increases ionic transfer across the membrane. 
D)  offers considerable resistance to the flow of ionic current.

Question 12

_______ was a pioneer in mapping the brain through electric stimulation.

Accepted Answer

A)  John Hughlings Jackson 
B)  Marco Delgado 
C)  Wilder Penfield 
D)  Eric Kandel 
A)  John Hughlings Jackson 
B)  Marco Delgado 
C)  Wilder Penfield 
D)  Eric Kandel

Question 13

The equilibrium potential corresponds to

Accepted Answer

A)  the rising phase of the action potential. 
B)  the afterpotential. 
C)  the membrane potential at which the movement of ions across the membrane is balanced. 
D)  temporally summated graded potentials. 
A)  the rising phase of the action potential. 
B)  the afterpotential. 
C)  the membrane potential at which the movement of ions across the membrane is balanced. 
D)  temporally summated graded potentials.

Question 14

What is the electroencephalogram (EEG) and what does it detect?

Accepted Answer

The answer of What is the electroencephalogram (EEG) and what...

Question 15

The active ingredient in tobacco products _______ the action of _______.

Accepted Answer

A)  inhibits; acetylcholine 
B)  inhibits; GABA 
C)  mimics; acetylcholine 
D)  mimics; GABA 
A)  inhibits; acetylcholine 
B)  inhibits; GABA 
C)  mimics; acetylcholine 
D)  mimics; GABA

Question 16

Stimulation of the precentral and postcentral gyrus helped determine the location of _______ and _______ cortex, respectively.

Accepted Answer

A)  sensory; motor 
B)  motor; sensory 
C)  language; emotion 
D)  emotion; language 
A)  sensory; motor 
B)  motor; sensory 
C)  language; emotion 
D)  emotion; language

Question 17

The resting membrane potential is maintained by electrostatic pressure and _______ acting on the cation _______.

Accepted Answer

A)  permeability; sodium 
B)  local potential; calcium 
C)  afterpotential; chloride 
D)  diffusion; potassium 
A)  permeability; sodium 
B)  local potential; calcium 
C)  afterpotential; chloride 
D)  diffusion; potassium

Question 18

How is the absolute refractory period different from the relative refractory period?

Accepted Answer

The answer of How is the absolute refractory period different...

Question 19

Which characteristic is not a factor in the speed of the knee-jerk reflex?

Accepted Answer

A)  Myelination 
B)  Fast synapses 
C)  IPSPs 
D)  Axon diameter 
A)  Myelination 
B)  Fast synapses 
C)  IPSPs 
D)  Axon diameter

Question 20

Inside the neuron there is a high concentration of _______ ions, while outside the cell there is a high concentration of _______ ions.

Accepted Answer

A)  potassium; sodium 
B)  sodium; potassium 
C)  calcium; sodium 
D)  calcium; chloride 
A)  potassium; sodium 
B)  sodium; potassium 
C)  calcium; sodium 
D)  calcium; chloride

The substance curare, which is used by native South Americans for poisoning the tip of arrowheads,

During the _______ phase, an action potential cannot be initiated because Na⁺ channels are unresponsive.

Give a step-by-step description of the generation of an action potential and its transmission along an axon. Describe how the presence or absence of myelin affects this process.

Spike-and-wave EEG activity is evident for _______ seconds during a simple partial seizure.

Axo-axonic synapses

During an action potential, the small potential change after a spike is called the _______.

Stimulation studies were able to create "maps" of how the various parts of the body are laid out on the cortex. These maps provided the basis for the cartoon depiction of areas of greatest representation in the brain. This cartoon depiction is referred to as the

What are event-related potentials, and how are they useful in studying the workings of the normal brain?

_______velocity refers to the speed at which an action potential travels down the axon.

If you were to record EEG from six parts of the brain during a tonic-clonic seizure, you would see

Myelin increases the speed of conduction because it

_______ was a pioneer in mapping the brain through electric stimulation.

The equilibrium potential corresponds to

What is the electroencephalogram (EEG) and what does it detect?

The active ingredient in tobacco products _ the action of _.

Stimulation of the precentral and postcentral gyrus helped determine the location of _ and _ cortex, respectively.

The resting membrane potential is maintained by electrostatic pressure and _ acting on the cation _.

How is the absolute refractory period different from the relative refractory period?

Which characteristic is not a factor in the speed of the knee-jerk reflex?

Inside the neuron there is a high concentration of _ ions, while outside the cell there is a high concentration of _ ions.

Introduction: Building the Minds Machine

Cells and Structures: the Anatomy of the Nervous System

The Chemistry of Behavior: Neurotransmitters and Neuropharmacology

Development of the Brain

The Sensorimotor System

Hearing, Balance, Taste, and Smell

Vision: From Eye to Brain

Hormones and Sex

Homeostasis: Active Regulation of the Internal Environment

Biological Rhythms and Sleep

Emotions, Aggression, and Stress

Psychopathology: The Biology of Behavioral Disorders

Memory, Learning, and Development

Attention and Higher Cognition

Language and Lateralization

Filters

Exam 3: Neurophysiology: The Generation, Transmission, and Integration of Neural Signals

The substance curare, which is used by native South Americans for poisoning the tip of arrowheads,

During the _______ phase, an action potential cannot be initiated because Na+ channels are unresponsive.

Give a step-by-step description of the generation of an action potential and its transmission along an axon. Describe how the presence or absence of myelin affects this process.

Spike-and-wave EEG activity is evident for _______ seconds during a simple partial seizure.

Axo-axonic synapses

During an action potential, the small potential change after a spike is called the _______.

Stimulation studies were able to create "maps" of how the various parts of the body are laid out on the cortex. These maps provided the basis for the cartoon depiction of areas of greatest representation in the brain. This cartoon depiction is referred to as the

What are event-related potentials, and how are they useful in studying the workings of the normal brain?

_______velocity refers to the speed at which an action potential travels down the axon.

If you were to record EEG from six parts of the brain during a tonic-clonic seizure, you would see

Myelin increases the speed of conduction because it

_______ was a pioneer in mapping the brain through electric stimulation.

The equilibrium potential corresponds to

What is the electroencephalogram (EEG) and what does it detect?

The active ingredient in tobacco products _______ the action of _______.

Stimulation of the precentral and postcentral gyrus helped determine the location of _______ and _______ cortex, respectively.

The resting membrane potential is maintained by electrostatic pressure and _______ acting on the cation _______.

How is the absolute refractory period different from the relative refractory period?

Which characteristic is not a factor in the speed of the knee-jerk reflex?

Inside the neuron there is a high concentration of _______ ions, while outside the cell there is a high concentration of _______ ions.

Introduction: Building the Minds Machine

Cells and Structures: the Anatomy of the Nervous System

The Chemistry of Behavior: Neurotransmitters and Neuropharmacology

Development of the Brain

The Sensorimotor System

Hearing, Balance, Taste, and Smell

Vision: From Eye to Brain

Hormones and Sex

Homeostasis: Active Regulation of the Internal Environment

Biological Rhythms and Sleep

Emotions, Aggression, and Stress

Psychopathology: The Biology of Behavioral Disorders

Memory, Learning, and Development

Attention and Higher Cognition

Language and Lateralization

Filters

During the _______ phase, an action potential cannot be initiated because Na⁺ channels are unresponsive.

The active ingredient in tobacco products _ the action of _.

Stimulation of the precentral and postcentral gyrus helped determine the location of _ and _ cortex, respectively.

The resting membrane potential is maintained by electrostatic pressure and _ acting on the cation _.

Inside the neuron there is a high concentration of _ ions, while outside the cell there is a high concentration of _ ions.