Medullary structure in the brain that controls vomiting
Area postrema
Rhomboid fossa. (Area postrema labeled at bottom center.)
Human caudal brainstem posterior view description (Area postrema is #8)
Details
Part of
Medulla
Identifiers
Acronym(s)
AP
MeSH
D031608
NeuroNames
772
NeuroLex ID
birnlex_2636
TA98
A14.1.04.258
TA2
6009
FMA
72607
Anatomical terms of neuroanatomy
[edit on Wikidata]
The area postrema, a paired structure in the medulla oblongata of the brainstem,[1] is a circumventricular organ having permeable capillaries and sensory neurons that enable its dual role to detect circulating chemical messengers in the blood and transduce them into neural signals and networks.[2][3][4] Its position adjacent to the bilateral nuclei of the solitary tract and role as a sensory transducer allow it to integrate blood-to-brain autonomic functions. Such roles of the area postrema include its detection of circulating hormones involved in vomiting, thirst, hunger, and blood pressure control.[1][5]
^ abMirza M, Das JM (8 July 2019). Neuroanatomy, Area Postrema. StatPearls; Treasure Island (FL): StatPearls Publishing. PMID 31334969. Retrieved 4 December 2019.
^Cite error: The named reference gross was invoked but never defined (see the help page).
^Cite error: The named reference hoyda was invoked but never defined (see the help page).
^Cite error: The named reference gross2 was invoked but never defined (see the help page).
^McKinley, Michael J.; Denton, Derek A.; Ryan, Philip J.; Yao, Song T.; Stefanidis, Aneta; Oldfield, Brian J. (14 March 2019). "From sensory circumventricular organs to cerebral cortex: Neural pathways controlling thirst and hunger". Journal of Neuroendocrinology. 31 (3): e12689. doi:10.1111/jne.12689. hdl:11343/285537. ISSN 0953-8194. PMID 30672620. S2CID 58947441.
The areapostrema, a paired structure in the medulla oblongata of the brainstem, is a circumventricular organ having permeable capillaries and sensory...
vomiting center to initiate vomiting. The CTZ is located within the areapostrema, which is on the floor of the fourth ventricle and is outside of the...
rapid neurohumoral exchange include the subfornical organ (SFO), the areapostrema (AP), the vascular organ of lamina terminalis (VOLT — also known as...
cervical spinal cord can cause respiratory insufficiency. Lesions in the areapostrema of the medulla oblongata can cause vomiting or hiccups, as well as pain...
system in the areapostrema and nucleus tractus solitarii. Cardiopulmonary receptors sense a decreased blood volume, and signal to areapostrema and nucleus...
dorsal nucleus of vagus nerve. The vagal trigone is separated from the areapostrema by a narrow strip of thickened ependyma – the funiculus separans. Funiculus...
vice-counties, subdivisions of Great Britain or Ireland Vomiting center (areapostrema), a structure in the brain Vital capacity, a maximum amount of air a...
sudden inflammation of the pancreas Alkaline phosphatase, an enzyme Areapostrema, a part of the brain Colporrhaphy or A&P repair, of vaginal walls Ammonium...
pregnancy, and to combat opioid nausea. H1 receptors in central areas include areapostrema and vomiting center in the vestibular nucleus. Also, many of...
human brain, MCs can be located in various areas, such as the pituitary stalk, the pineal gland, the areapostrema, the choroid plexus, thalamus, hypothalamus...
chemoreceptor trigger zone, known as the areapostrema, stimulation of which can lead to vomiting. The areapostrema is a circumventricular organ and as such...
wary of predators. Areapostrema, the part of the brain that controls vomiting Chemoreceptor trigger zone, the part of the areapostrema that relays signals...
neurons project from a nucleus that is adjacent (ventrolateral) to the areapostrema and from a nucleus in the dorsal region of the solitary tract. Dopamine...
PAI-2. Angiotensin II increases thirst sensation (dipsogen) through the areapostrema and subfornical organ of the brain, decreases the response of the baroreceptor...
nerve terminals and centrally in the chemoreceptor trigger zone of the areapostrema in the medulla. Serotonin is released by the enterochromaffin cells...
of aversive stimuli. The vomiting center in the medulla, called the areapostrema, contains high concentrations of substance P and its receptor, in addition...
tongue-shaped area, the areapostrema. On section it is seen that the funiculus separans is formed by a strip of thickened ependyma, and the areapostrema by loose...
breathing and blood pressure. Another important medullary structure is the areapostrema whose functions include the control of vomiting. Cross-section of the...
zone (CTZ): The CTZ is located in the areapostrema in the floor of the fourth ventricle within the brain. This area is outside the blood brain barrier,...
blood can be detected directly in the areapostrema of the brain and trigger the emetic reflex. The areapostrema is a structure located on the floor of...
human brain, MCs can be located in various areas, such as the pituitary stalk, the pineal gland, the areapostrema, the choroid plexus, thalamus, hypothalamus...
(the others being the subfornical organ, the median eminence, and the areapostrema). The VOLT, median eminence, and subfornical organ are interconnected...
This elevation similarly stimulates the medullary vomiting center and areapostrema, leading to morning vomiting. Other symptoms and findings depend largely...
respond to changes in body fluids—such as the pineal gland, areapostrema, and some areas of the hypothalamus. There is a similar blood–cerebrospinal...
electrical stimulation of another area of the cerebral cortex. The chemoreceptor trigger zone is within the areapostrema of the medulla oblongata in which...
Global Information
