Tags: Anatomical Structure, Brain.
The red nucleus or nucleus ruber is a structure in the rostral midbrain involved in motor coordination. It is pale pink in color; the color is believed to be due to iron which is present in the red nucleus in at least two different forms; hemoglobin and ferritin. It comprises a caudal magnocellular and a rostral parvocellular part. It is located in the tegmentum of the midbrain next to the substantia nigra.
