This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Brainstem, cerebellum and ventricles, Subject name: Anatomy
Which is NOT a pa of basal ganglia 
Select and explain. 
A. Caudate nucleus, B. Thalamus, C. Lenticular nucleus, D. Globus pallidus
B: Thalamus
Answer: B: Thalamus 
Explanation: Basal ganglia: Structural components: Functional components Putamen Globus pallidus Amygdaloid nucleus Caudate nucleus subthalamic nucleus substantia nigra So thalamus being pa of diencephalon is not a structural pa of basal ganglia.