Examination of a tissue sample from the central nervous system reveals many darkly pigmented cells. This tissue probably came from the
A) nucleus gracilis.
B) red nucleus.
C) substantia nigra.
D) nucleus cuneatus.
E) motor cortex.

Question

Quizplus · Accepted Answer

The substantia nigra is known for its darkly pigmented cells due to the presence of neuromelanin, which gives it a characteristic dark appearance.

Examination of a Tissue Sample from the Central Nervous System