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Problem L2.1
Huntington's disease is characterized by a loss of normal inhibition mediated by the basal nuclei. Predict the symptoms you are likely to see with this disease.
Problem L2.2
How could you tell the difference between an injury that damaged the cerebellum and one that damaged the basal nuclei?
Problem L2.3
Why do injuries to the hippocampus interfere with the formation of new declarative memories but do not impact memories already encoded in long-term memory? Why do such injuries not affect the formation of nondeclarative memories?
Problem L3.1
Ms. Norris is brought to the emergency department with injuries to the posterior of her head resulting from a motor vehicle accident. Which lobes of the cerebrum likely sustained injuries? Predict the main signs and symptoms you will see resulting from the injury to these cerebral lobes.
Problem L3.2
On further examination, Ms. Norris is shown to be in a state of unarousable unconsciousness, or coma. Which area or system of the brain is likely damaged? Explain.
Problem L3.3
In a diving accident, Arlene damages the left side of her upper thoracic spinal cord. On which side of the body will she lose: muscle control, tactile sensation, and pain sensation? Explain.
Problem L3.4
A new diet wonder drug is designed to block the release of orexins. How might this cause weight loss? Predict the potential adverse effects that might come from blocking orexin release.
Problem 1
The central nervous system is responsible for:
a. Integrative functions
b. Sensory functions
c. Motor functions
d. Both b and c are correct
Problem 2a
Mark the following statements about the brain as true or false. If a statement is false, correct it to make a true statement.
Humans use only 10% of their brains.
Problem 2b
Mark the following statements about the brain as true or false. If a statement is false, correct it to make a true statement.
The four main components of the brain are the cerebrum, the diencephalon, the cerebellum, and the brainstem.
Problem 2c
Mark the following statements about the brain as true or false. If a statement is false, correct it to make a true statement.
The right and left lateral ventricles are the largest of the ventricles in the brain and are located in the diencephalon.