Deck 16: Recovery of Function Objectives

Question 1

Which of the following cannot initiate apoptosis?

A) Damage to the DNA of the neuron.
B) Damage cause by free radicals.
C) Withdrawal of tropic factors required for normal development.
D) The presence of nectrotic neurons nearby.
E) All of the above can initiate apoptosis.
F) None of the above can initiate apoptosis.

Answer 1

All of the above can initiate apoptosis.

Question 2

Which of the following is a means to compensate for the permanent loss of a neuron?

A) dendritic sprouting
B) collateral sprouting
C) neuronal growth
D) myelinization
E) regenerative sprouting

Answer 2

collateral sprouting

Question 3

__________ is the removal of something from the environments, whereas__________ is the addition of something to the environment.

A) dispossession; enrichment
B) deprivation; enhancement
C) dispossession; provision
D) deprivation; enrichment
E) deficiency; enhancement

Answer 3

deprivation; enrichment

Question 4

Which of the following tends to focus on inserting genes that enhance the production of selected molecules rather than the insertion or deletion of genes?

A) gene therapy
B) genetic engineering
C) genetic rehabilitation
D) gene analysis
E) DNA analysis

Question 5

__________ is the regulation of a cell's internal environment.

A) nuclear equilibrium
B) equilibrium
C) homeostasis
D) nuclear stability
E) None of the above.

Question 6

Which of the following is false regarding ischemia?

A) It can result in stroke.
B) It is associated with disruption in energy pathways of the neuron.
C) It is a common cause of necrotic cell death.
D) It leads to an affect on ion channels that are important for homeostasis in the neuron.
E) It is an influx of blood flow.

Question 7

__________ can result from the neuron exhausting its resources and overwhelming homeostatic mechanisms.

A) primary cell death
B) secondary cell death
C) crucial cell death
D) core death
E) static cell death

Question 8

What is the term for the death of neurons that occurs immediately following trauma?

A) secondary cell death
B) primary neural death
C) crucial cell death
D) traumatic neuronal death
E) static cell death

Question 9

Which of the following is false regarding regenerative sprouting?

A) This activity occurs only in the PNS.
B) This activity results in a permanent loss of structure.
C) This activity results in a permanent loss of function in the CNS.
D) This function does not occur in most mammals, including humans.
E) All of the above are true statements.

Question 10

Research involving the Kennard Effect has supported which of the following statements?

A) In humans, the period associated with greatest functional recovery is between the ages of 5 to 10 years of age.
B) Lesions that occur prior to the completion of basic development organization of the cortex cannot be compensated for.
C) Age is associated with the degree of functional recovery, therefore younger is always better.
D) In rats, the brain is till undergoing significant and basic developmental organization after 12 days of age.
E) The Kennard effect is only consistently found in rats.