Question 1

EPSPs on the distant dendrite's tree:

Accepted Answer

A) have maximum influence on an action potential. 
B) are easier to summate both spatially and temporally than EPSPs elsewhere. 
C) are less likely to have a dynamic effect than those close to the axon hillock. 
D) do not modulate action potentials. 
A) have maximum influence on an action potential. 
B) are easier to summate both spatially and temporally than EPSPs elsewhere. 
C) are less likely to have a dynamic effect than those close to the axon hillock. 
D) do not modulate action potentials.

Question 2

There are approximately _____ as many K+ ions inside a cell as outside it.

Accepted Answer

A) 20 times 
B) 2 times 
C) one-tenth 
D) half 
A) 20 times 
B) 2 times 
C) one-tenth 
D) half

Question 3

Two EPSPs occurring close together in time and location on the cell membrane is an example of:

Accepted Answer

A) spatial summation. 
B) temporal summation. 
C) both spatial and temporal summation. 
D) neither spatial nor temporal summation. 
A) spatial summation. 
B) temporal summation. 
C) both spatial and temporal summation. 
D) neither spatial nor temporal summation.

Question 4

During an action potential, the voltage of the cell membrane:

Accepted Answer

A) drops to zero and then returns to -70 mV. 
B) drops to zero, returns to about -100 mV, and then goes to 70 mV. 
C) goes to about +30 mV and then drops to -70 mV. 
D) goes to about +30 mV, drops to -100 mV, and then goes to -70 mV. 
A) drops to zero and then returns to -70 mV. 
B) drops to zero, returns to about -100 mV, and then goes to 70 mV. 
C) goes to about +30 mV and then drops to -70 mV. 
D) goes to about +30 mV, drops to -100 mV, and then goes to -70 mV.

Question 5

Saltatory conduction refers to:

Accepted Answer

A) sodium concentration in the extracellular fluid. 
B) action potentials that are facilitated by sodium. 
C) action potentials jumping from one node to the next. 
D) the leakage of the sodium channels that require the existence of a sodium-potassium pump. 
A) sodium concentration in the extracellular fluid. 
B) action potentials that are facilitated by sodium. 
C) action potentials jumping from one node to the next. 
D) the leakage of the sodium channels that require the existence of a sodium-potassium pump.

Question 6

Which of the following is NOT true?

Accepted Answer

A) The cell membrane is semipermeable, so it keeps in large negatively charged protein molecules. 
B) The membrane keeps out Na+ and allows K+ and Cl- to pass more freely. 
C) The membrane has a sodium-potassium pump that removes potassium from inside the cell and replaces it with sodium. 
D) The summed charges of the unequally distributed ions leave the inside of the membrane at -70 mV relative to the outside.This is the cell's resting potential. 
A) The cell membrane is semipermeable, so it keeps in large negatively charged protein molecules. 
B) The membrane keeps out Na+ and allows K+ and Cl- to pass more freely. 
C) The membrane has a sodium-potassium pump that removes potassium from inside the cell and replaces it with sodium. 
D) The summed charges of the unequally distributed ions leave the inside of the membrane at -70 mV relative to the outside.This is the cell's resting potential.

Question 7

What is the patch technique?

Accepted Answer

The patch technique refers to a method u

Question 8

Saltatory conduction is aided by _____ located at the _____.

Accepted Answer

A) sodium-potassium pumps; terminal buttons 
B) sodium and potassium channels; nodes of Ranvier 
C) calcium channels; nodes of Ranvier 
D) glial cells; nodes of Ranvier 
A) sodium-potassium pumps; terminal buttons 
B) sodium and potassium channels; nodes of Ranvier 
C) calcium channels; nodes of Ranvier 
D) glial cells; nodes of Ranvier

Question 9

If a small amount of dye is placed in a beaker of water, it will flow away from the initial point of contact. The ensuing process illustrates:

Accepted Answer

A) diffusion. 
B) concentration. 
C) charge. 
D) electrostatic pressure. 
A) diffusion. 
B) concentration. 
C) charge. 
D) electrostatic pressure.

Question 10

John C. Eccles won the Nobel Prize for his work:

Accepted Answer

A) recording the first dendrites ever to be observed. 
B) using techniques first developed to study squid axons in order to record large motor neurons in the vertebrate spinal cord. 
C) developing a cure for multiple sclerosis, based on recording neurons in the vertebrate spinal cord. 
D) using techniques first developed to study the vertebrate spinal cord in order to record large squid axons. 
A) recording the first dendrites ever to be observed. 
B) using techniques first developed to study squid axons in order to record large motor neurons in the vertebrate spinal cord. 
C) developing a cure for multiple sclerosis, based on recording neurons in the vertebrate spinal cord. 
D) using techniques first developed to study the vertebrate spinal cord in order to record large squid axons.

Question 11

Neurons in most animals, including humans, are approximately _____ micrometers in diameter.

Accepted Answer

A) 1 to 20 
B) 0.01 to 0.2 
C) 100 to 200 
D) up to 1 
A) 1 to 20 
B) 0.01 to 0.2 
C) 100 to 200 
D) up to 1

Question 12

What is back propagation, and how is it linked with neuroplasticity?

Accepted Answer

Back propagation is a method used in tra

Question 13

The speed at which nerve impulses travel down an axon are greatly increased by:

Accepted Answer

A) myelin. 
B) refractory periods. 
C) the length of the axon. 
D) calcium channels. 
A) myelin. 
B) refractory periods. 
C) the length of the axon. 
D) calcium channels.

Question 14

Hair receptors are associated with:

Accepted Answer

A) taste. 
B) vision. 
C) hearing and balance. 
D) touch. 
A) taste. 
B) vision. 
C) hearing and balance. 
D) touch.

Question 15

Which of the following treatments is (are) used to help reduce epilepsy?

Accepted Answer

A) medication 
B) deep brain stimulation 
C) a high-fat, low-carbohydrate diet 
D) All of the answers are correct. 
A) medication 
B) deep brain stimulation 
C) a high-fat, low-carbohydrate diet 
D) All of the answers are correct.

Question 16

An end plate is found on:

Accepted Answer

A) a muscle membrane. 
B) a dendrite membrane. 
C) an axon. 
D) touch receptors. 
A) a muscle membrane. 
B) a dendrite membrane. 
C) an axon. 
D) touch receptors.

Question 17

Small voltage fluctuations in the cell membrane that occur in the vicinity of the axon are called:

Accepted Answer

A) action potentials. 
B) graded potentials. 
C) ion fluctuations. 
D) nerve impulses. 
A) action potentials. 
B) graded potentials. 
C) ion fluctuations. 
D) nerve impulses.

Question 18

Myelin is important for propagating action potential (AP) because:

Accepted Answer

A) it increases the AP's conduction speed. 
B) it reduces the need for sodium and potassium. 
C) it conserves energy. 
D) it both increases the AP's conduction speed and conserves energy. 
A) it increases the AP's conduction speed. 
B) it reduces the need for sodium and potassium. 
C) it conserves energy. 
D) it both increases the AP's conduction speed and conserves energy.

Question 19

How does the sodium-potassium pump work?

Accepted Answer

The sodium-potassium pump, also known as

Question 20

What is multiple sclerosis (MS)? What are some of the identified risk factors for MS?

Accepted Answer

Multiple sclerosis (MS) is a chronic aut

EPSPs on the distant dendrite's tree:

There are approximately _____ as many K⁺ ions inside a cell as outside it.

Two EPSPs occurring close together in time and location on the cell membrane is an example of:

During an action potential, the voltage of the cell membrane:

Saltatory conduction refers to:

Which of the following is NOT true?

What is the patch technique?

Saltatory conduction is aided by _ located at the _.

If a small amount of dye is placed in a beaker of water, it will flow away from the initial point of contact. The ensuing process illustrates:

John C. Eccles won the Nobel Prize for his work:

Neurons in most animals, including humans, are approximately _____ micrometers in diameter.

What is back propagation, and how is it linked with neuroplasticity?

The speed at which nerve impulses travel down an axon are greatly increased by:

Hair receptors are associated with:

Which of the following treatments is (are) used to help reduce epilepsy?

An end plate is found on:

Small voltage fluctuations in the cell membrane that occur in the vicinity of the axon are called:

Myelin is important for propagating action potential (AP) because:

How does the sodium-potassium pump work?

What is multiple sclerosis (MS)? What are some of the identified risk factors for MS?

What Are the Origins of Brain and Behavior

What Is the Nervous Systems Functional Anatomy

What Are the Nervous Systems Functional Units

How Do Neurons Communicate and Adapt

How Do Drugs and Hormones Influence the Brain and Behavior

How Do We Study the Brains Structures and Functions

How Does the Nervous System Develop and Adapt

How Do We Sense, Perceive, and See the World

How Do We Hear, Speak, and Make Music

How Does the Nervous System Respond to Stimulation and Produce Movement

What Causes Emotional and Motivated Behavior

Why Do We Sleep and Dream

How Do We Learn and Remember

How Does the Brain Think

What Happens When the Brain Misbehaves

Filters

Exam 4: How Do Neurons Use Electrical Signals to Transmit Information

EPSPs on the distant dendrite's tree:

There are approximately _____ as many K+ ions inside a cell as outside it.

Two EPSPs occurring close together in time and location on the cell membrane is an example of:

During an action potential, the voltage of the cell membrane:

Saltatory conduction refers to:

Which of the following is NOT true?

What is the patch technique?

Saltatory conduction is aided by _____ located at the _____.

If a small amount of dye is placed in a beaker of water, it will flow away from the initial point of contact. The ensuing process illustrates:

John C. Eccles won the Nobel Prize for his work:

Neurons in most animals, including humans, are approximately _____ micrometers in diameter.

What is back propagation, and how is it linked with neuroplasticity?

The speed at which nerve impulses travel down an axon are greatly increased by:

Hair receptors are associated with:

Which of the following treatments is (are) used to help reduce epilepsy?

An end plate is found on:

Small voltage fluctuations in the cell membrane that occur in the vicinity of the axon are called:

Myelin is important for propagating action potential (AP) because:

How does the sodium-potassium pump work?

What is multiple sclerosis (MS)? What are some of the identified risk factors for MS?

What Are the Origins of Brain and Behavior

What Is the Nervous Systems Functional Anatomy

What Are the Nervous Systems Functional Units

How Do Neurons Communicate and Adapt

How Do Drugs and Hormones Influence the Brain and Behavior

How Do We Study the Brains Structures and Functions

How Does the Nervous System Develop and Adapt

How Do We Sense, Perceive, and See the World

How Do We Hear, Speak, and Make Music

How Does the Nervous System Respond to Stimulation and Produce Movement

What Causes Emotional and Motivated Behavior

Why Do We Sleep and Dream

How Do We Learn and Remember

How Does the Brain Think

What Happens When the Brain Misbehaves

Filters

There are approximately _____ as many K⁺ ions inside a cell as outside it.

Saltatory conduction is aided by _ located at the _.