|an arrangement of five objects, as trees, in a square or rectangle, one at each corner and one in the middle.|
|a chattering or flighty, light-headed person.|
medulla oblongata medulla ob·lon·ga·ta (ŏb'lŏng-gā'tə, -gä'tə)
n. pl. medulla ob·lon·ga·tas or medullae ob·lon·ga·tae (-gā'tē, -gä'tē)
The lowermost portion of the vertebrate brain, continuous with the spinal cord and responsible for the control of respiration, circulation, and other bodily functions.
|medulla oblongata (ŏb'lông-gä'tə) Pronunciation Key
Plural medulla oblongatas or medullae oblongatae (ŏb'lông-gä'tē)
The lowermost portion of the brainstem in humans and other mammals. It is important in the reflex control of involuntary processes, including respiration, heartbeat, and blood pressure.
the lowest part of the brain and the lowest portion of the brainstem. The medulla oblongata is connected by the pons to the midbrain and is continuous posteriorly with the spinal cord, with which it merges at the opening (foramen magnum) at the base of the skull.
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