medulla oblongata


medulla ob·lon·ga·ta

noun \-ˌäb-ˌlŋ-ˈgät-ə\
plural medulla oblongatas or medullae ob·lon·ga·tae \-ˈgät-ē, -ˈgä-ˌtī\

Definition of MEDULLA OBLONGATA

: the somewhat pyramidal last part of the vertebrate brain developed from the posterior portion of the hindbrain and continuous posteriorly with the spinal cord, enclosing the fourth ventricle, and containing nuclei associated with most of the cranial nerves, major fiber tracts and decussations that link spinal with higher centers, and various centers mediating the control of involuntary vital functions (as respiration)

Illustration of MEDULLA OBLONGATA

Seen & Heard

What made you want to look up medulla oblongata? Please tell us where you read or heard it (including the quote, if possible).

Get Our Free Apps
Voice Search, Favorites,
Word of the Day, and More
Join Us on FB & Twitter
Get the Word of the Day and More