Review Questions

1. Your patient has a stooped posture, shuffling gait, and a tremor in the fingers at rest. Which part of the brain will show neuronal degeneration?

(A) Metencephalon

(B) Diencephalon

(C) Mesencephalon

(D) Myelencephalon

(E) Telencephalon

2. Which neurotransmitter may be inhibited pharmacologically to reduce the effects seen in the patient in the previous case?

(B) Dopamine

(C) Glutamate

(D) Glycine

(E) Acetylcholine

3. A hypertensive patient suddenly develops violent flinging involuntary movements in an upper limb. The patient is able to suppress the movements for brief periods. The patient has suffered a vascular insult affecting the

4. A 47-year-old banker exhibits a personality change over a period of weeks. He becomes irritable and no longer seems to be getting along at work. He exhibits jerky movements when trying to pick up a cup of coffee or hold a pen to write. The patient's wife recalls that the patient's mother died in her 60s of a progressive illness that started like her husband's. CT imaging reveals apparent degeneration of a neural structure situated medial to the anterior limb of the internal capsule, which normally protrudes into the lateral ventricle. The affected structure in this patient is the

(A)

caudate nucleus

(B)

globus pallidus

(C)

corpus caOosum

(D)

thalamus

(E)

putamen

globus pallid us caudate nucleus internal capsule subthalamic nucleus substantia nigra

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