oblongata


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oblongata

 [ob″long-gah´tah]
oblong; see medulla oblongata.

me·dul·la ob·lon·ga·'ta

[TA]
the most caudal subdivision of the brainstem, immediately continuous with the spinal cord, extending from the lower border of the decussation of the pyramid to the pons; its anterior (ventral) surface resembles that of the spinal cord except for the bilateral prominence of the inferior olive; the posterior (dorsal) surface of its upper half forms part of the floor of the fourth ventricle. Motor nuclei of the medulla oblongata include the hypoglossal nucleus, the dorsal motor nucleus, inferior salivatory nucleus, and the nucleus ambiguus; sensory nuclei include the nuclei of the posterior column (gracile and cuneate), the cochlear and vestibular nuclei, the middle and caudal portions of the spinal trigeminal nucleus, and the nucleus of the solitary tract.
See also: medulla.
Synonym(s): myelencephalon [TA], oblongata

oblongata

/ob·lon·ga·ta/ (ob-long-gah´tah) medulla oblongata.oblonga´tal

me·dul·la ob·lon·ga·ta

(mĕ-dŭl'ă ob-long-gā'tă) [TA]
The most caudal subdivision of the brainstem, continuous with the spinal cord, extending from the lower border of the decussation of the pyramid to the pons; its ventral surface resembles that of the spinal cord except for the bilateral prominence of the inferior olive; the dorsal surface of its upper half forms part of the floor of the fourth ventricle. Motor nucleiof the medulla oblongata include the hypoglossal nucleus, the dorsal motor nucleus, inferior salivatory nucleus, and the nucleus ambiguus; sensory nuclei include the nuclei of the posterior column (gracile and cuneate), the cochlear and vestibular nuclei, the mid and caudal portions of the spinal trigeminal nucleus, and the nucleus of the solitary tract.
See also: medulla
Synonym(s): myelencephalon, oblongata.

oblongata

medulla oblongata. See also brain.
References in periodicals archive ?
Because the PVS patient's brainstem is not completely destroyed, the medulla oblongata can continue to facilitate breathing in the PVS patient.
Jannetta for an unrelated right-sided cranial nerve disease, arterial compression of the right anterolateral medulla oblongata was documented in every single case (Stroke 1999:30:1707-10).
For example, the medulla oblongata controls breathing, heart rate and blood pressure without conscious intervention from us.
Because this is such a broad area of research, this paper will focus particularly on the medulla oblongata region of the brain.
At the root of the medulla oblongata, these changes occupied the whole breadth of both the medullary fasciculi to the extent of half an inch in breadth from above downwards.
Regulation of breathing primarily falls on the central centers, the central chemoreceptors on the ventral surface of the medulla oblongata.
The myelencepahlon portion of the rhombencephalon develops into nerve fibers that form the medulla oblongata.
It has been reported in the literature that CXVO has effects of inhibiting cerebral activity, reducing autonomic activity of animal, inhibiting activities of vasomotor center (VMC), respiratory center (APC), and spinal reflex in the medulla oblongata, and is effective for experimental epilepsy.
The T-box area on the head is where the medulla oblongata is and acts like a light switch when shot.
Effect of prolonged clonidine treatment and its withdrawal on noradrenaline turnover in the cerebral cortex and medulla oblongata of the spontaneously hypertensive rat.
You just have to trust the animal part of your brain, the medulla oblongata.
Metabolism in sheep of gallic acid, tannic acid and hydrolyzable tannins from Terminalia oblongata, Aust.