Chapter 5
Biological Psychology · 11 exercises
Problem 1
What are the two kinds of stroke and what causes each kind?
3 step solution
Problem 1
Which develops first, a neuron's axon or its dendrites?
3 step solution
Problem 2
Why is tPA not recommended in cases of hemorrhage?
4 step solution
Problem 3
In which brain areas do new neurons form in adults?
5 step solution
Problem 6
Is denervation supersensitivity a change in axons or dendritic receptors?
3 step solution
Problem 7
Cite an example in which reorganization of the brain is helpful and one in which it is harmful.
3 step solution
Problem 8
Suppose someone has suffered a spinal cord injury that interrupts all sensation from the left arm. Now he or she uses only the right arm. Of the following, which is the most promising therapy: electrically stimulate the skin of the left arm, tie the right arm behind the person's back, or blindfold the person?
3 step solution
Problem 8
What class of chemicals prevents apoptosis?
3 step solution
Problem 9
At what age does a person have the greatest number of neurons \(-\) as an embryo, newborn, child, adolescent, or adult?
4 step solution
Problem 10
Anesthetic drugs increase inhibition of neurons, blocking most action potentials. Why would we predict that prolonged exposure to anesthetics would be dangerous to the brain of a fetus?
4 step solution
Problem 11
An "enriched" environment promotes growth of axons and dendrites. What is known to be one important reason for this action?
3 step solution