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 …

2023年8月8日 · The area postrema is a highly vascular paired structure in the medulla oblongata in the brainstem. It lies in the caudal fourth ventricular floor, overlying the inferior portion of vagal trigone while facing the foramen of Magendie and rostral to the obex, the inferior point of the floor of the fourth ventricle.

2024年6月14日 · Area postrema syndrome is a disorder of the chemoreceptor trigger zone (area postrema) which is located on the medial posteroinferior surface of the medulla oblongata. It is usually a demyelinating disorder, as one of the core clinical characteristics of neuromyelitis optica spectrum disorder 1,2.

2022年12月14日 · The area postrema, also known as the chemoreceptor trigger zone is one of the so-called circumventricular organs located on the dorsal inferior surface of the medulla oblongata at the caudal end of the fourth ventricle 1.

The area postrema refers to a small region on the floor of the fourth ventricle in the brain. It is believed to be responsible for detecting toxins and triggering reflexive actions that lead to illness. AI generated definition based on: Encyclopedia of Neuroscience, 2009

The area postrema is a highly vascular structure located in the caudal part of the floor of the fourth ventricle of the brainstem, positioned just rostral to the obex and separated from the vagal triangle by a semitransparent ridge called the funiculus separans.

Area postrema syndrome (APS) is part of the neuromyelitis optica spectrum of disorders, and can present solely with nausea, vomiting and hiccups and no neurological symptoms.

2021年2月3日 · Nausea is an unpleasant sensation of visceral malaise that remains poorly understood at a molecular and cellular level. Here, we use genetic tools based on an area postrema cell atlas to identify neurons and receptors that mediate nausea-related behaviors triggered by visceral poisons.

The area postrema (AP) is a small, circumventricular organ located in the dorsal medulla and is characterized by an anastomosed capillary network with no blood-brain barrier. It contains the chemoreceptor trigger zone for vomiting, which is activated by noxious stimuli in the blood.

1994年12月1日 · The area postrema (AP) has been implicated as a chemoreceptor trigger zone for vomiting (emesis) for over 40 years. The AP is located on the dorsal surface of the medulla oblongata at the caudal end of the fourth ventricle.