mamillary body n.
A small round paired cell group that protrudes into the interpeduncular fossa from the inferior aspect of the hypothalamus, receives a major bundle of hippocampal fibers from the fornix, and projects fibers to the anterior thalamic nuclei and into the tegmentum of the brainstem.
|one of two small round structures on the undersurface of the brain that form the terminals of the anterior arches of the fornix|
|a screen or mat covered with a dark material for shielding a camera lens from excess light or glare.|
|an extraordinary or unusual thing, person, or event; an exceptional example or instance.|