Point 20


Intro

Pathway

Deficit

Overview

Problems


Contents

Anatomy

 

 

Point 20. Substantia Nigra

The substantia nigra lies in the midbrain immediately dorsal to the cerebral peduncles. This nucleus is an important motor center that will be discussed at greater length later in the course. Right now you need to know that some of the cells project to the caudate and putamen, two nuclei of the basal ganglia that together comprise what is called the STRIATUM. These NIGROSTRIATAL cells utilize the neurotransmitter DOPAMINE.

Level 9. Mesencephalon at Level of Inferior Colliculus

Level 9. Mesencephalon at Level of Inferior Colliculus

Level 10. Mesencephalon at Level of Superior Colliculus