Question 1

Which of the following statements is TRUE?

Accepted Answer

A)   In the central nervous system Schwann cells serve as guideposts to show axons where to terminate when regeneration occurs.
B)   In the peripheral nervous system Schwann cells serve as signposts to guide axons to their appropriate end points.
C)   Schwann cells cannot help damaged axons,because neither nervous system can regenerate.
D)   Schwann cells are present only in the developing organism and thus have nothing to do with regeneration.

Question 2

Because the gene that leads to Huntington disease is dominant,a child who has one parent with Huntington disease has a _____ chance of developing the disorder.

Accepted Answer

A)   50 percent
B)   100 percent
C)   25 percent
D)   75 percent

Question 3

The _____ help(s) regulate the concentration of different ions inside and outside of the neuron.

Accepted Answer

A)   cell membrane
B)   nuclear membrane
C)   microfilaments
D)   lysosomes

Question 4

Abnormalities on chromosome _____ cause sickle-cell anemia.

Accepted Answer

A)   4
B)   17
C)   11
D)   24

Question 5

Ependymal cells are associated with:

Accepted Answer

A)   the blood-brain barrier.
B)   the production of cerebrospinal fluid.
C)   the production of myelin.
D)   the healing of damaged tissue.

Question 6

_____ are tumors that begin in one part of the body and spread to another part of the body.

Accepted Answer

A)   Meningiomas
B)   Gliomas
C)   Metastatic tumors
D)   Gangliomas

Question 7

Expressed genetic traits of an individual are referred to as their:

Accepted Answer

A)   genotype.
B)   phenotype.
C)   wild type.
D)   mutation.

Question 8

The simplest way to select for specific genetic traits in animals (e.g. ,dogs) is through the use of:

Accepted Answer

A)   cloning.
B)   selective breeding.
C)   transgenic techniques.
D)   gene therapy.

Question 9

Which of the following are NOT a type of bipolar neuron?

Accepted Answer

A)   retinal neurons
B)   sensory neurons in the skin
C)   sensory neurons in muscle
D)   motor neurons

Question 10

Which of the following is NOT characteristic of a pyramidal cell?

Accepted Answer

A)   long axon
B)   pyramid-shaped body
C)   two sets of dendrites
D)   one set of dendrites

Question 11

_____ is the technique that allows researchers to label different neurons by marking them with distinct colors.

Accepted Answer

A)   Straining
B)   Defragmentation
C)   Brainbow
D)   Bluetooth

Question 12

Humans have approximately:

Accepted Answer

A)   20,000 genes.
B)   75,000 genes.
C)   125,000 genes.
D)   175,000 genes.

Question 13

_____ are glial cells that have nutritive and supportive functions.

Accepted Answer

A)   Ependymal cells
B)   Purkinje cells
C)   Telodendria
D)   Astrocytes

Question 14

The _____ contain(s) the chromosomes and genes of a cell.

Accepted Answer

A)   nucleus
B)   Golgi body
C)   lysosomes
D)   endoplasmic reticulum

Question 15

_____ are a special type of interneuron found in the cerebellum.

Accepted Answer

A)   Purkinje cells
B)   Motor neurons
C)   Bipolar neurons
D)   Glial cells

Question 16

Which of the following is NOT an interneuron?

Accepted Answer

A)   Purkinje cell
B)   stellate cell
C)   pyramidal cell
D)   Schwann cell

Exam 3:What Are the Nervous System's Functional Units? Part C

Which of the following statements is TRUE?

Correct Answer
verified

_____ are glial cells that have nutritive and supportive functions.

Correct Answer
verified

Ependymal cells are associated with:

Correct Answer
verified

_____ are a special type of interneuron found in the cerebellum.

Correct Answer
verified

Because the gene that leads to Huntington disease is dominant,a child who has one parent with Huntington disease has a _____ chance of developing the disorder.

Correct Answer
verified

_____ is the technique that allows researchers to label different neurons by marking them with distinct colors.

Correct Answer
verified

Which of the following are NOT a type of bipolar neuron?

Correct Answer
verified

The _____ help(s) regulate the concentration of different ions inside and outside of the neuron.

Correct Answer
verified

Humans have approximately:

Correct Answer
verified

Expressed genetic traits of an individual are referred to as their:

Correct Answer
verified

Which of the following is NOT an interneuron?

Correct Answer
verified

The _____ contain(s) the chromosomes and genes of a cell.

Correct Answer
verified

The simplest way to select for specific genetic traits in animals (e.g. ,dogs) is through the use of:

Correct Answer
verified

Which of the following is NOT characteristic of a pyramidal cell?

Correct Answer
verified

Abnormalities on chromosome _____ cause sickle-cell anemia.

Correct Answer
verified

_____ are tumors that begin in one part of the body and spread to another part of the body.

Correct Answer
verified

Exam 3:What Are the Nervous System's Functional Units? Part C

Which of the following statements is TRUE?

Correct AnswerverifiedShow Answer

_____ are glial cells that have nutritive and supportive functions.

Correct AnswerverifiedShow Answer

Ependymal cells are associated with:

Correct AnswerverifiedShow Answer

_____ are a special type of interneuron found in the cerebellum.

Correct AnswerverifiedShow Answer

Because the gene that leads to Huntington disease is dominant,a child who has one parent with Huntington disease has a _____ chance of developing the disorder.

Correct AnswerverifiedShow Answer

_____ is the technique that allows researchers to label different neurons by marking them with distinct colors.

Correct AnswerverifiedShow Answer

Which of the following are NOT a type of bipolar neuron?

Correct AnswerverifiedShow Answer

The _____ help(s) regulate the concentration of different ions inside and outside of the neuron.

Correct AnswerverifiedShow Answer

Humans have approximately:

Correct AnswerverifiedShow Answer

Expressed genetic traits of an individual are referred to as their:

Correct AnswerverifiedShow Answer

Which of the following is NOT an interneuron?

Correct AnswerverifiedShow Answer

The _____ contain(s) the chromosomes and genes of a cell.

Correct AnswerverifiedShow Answer

The simplest way to select for specific genetic traits in animals (e.g. ,dogs) is through the use of:

Correct AnswerverifiedShow Answer

Which of the following is NOT characteristic of a pyramidal cell?

Correct AnswerverifiedShow Answer

Abnormalities on chromosome _____ cause sickle-cell anemia.

Correct AnswerverifiedShow Answer

_____ are tumors that begin in one part of the body and spread to another part of the body.

Correct AnswerverifiedShow Answer

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