2021年2月4日 · The obex is the most caudal point within the fourth ventricle, as it narrows and communicates with the central canal of the spinal cord. It is one of four routes via which …

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 …

2024年5月23日 · The obex, Latin for barrier, is a small fold on the posterior surface of the medulla oblongata, located at the inferior apex of the fourth ventricle. It is formed by the unison of 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 …

The fourth ventricle extends from the cerebral aqueduct (aqueduct of Sylvius) to the obex, and is filled with cerebrospinal fluid (CSF). The fourth ventricle has a characteristic diamond shape in …

2025年1月8日 · The obex is the most caudal tip of the fourth ventricle. The fourth ventricle contains choroid plexus along its roof along the tela choroidea which may protrude out the …

The obex* is a thin, triangular, gray lamina, at which the fourth ventricle narrows to become the central canal of the spinal cord. It is located in the lower angle of the ventricle and is attached …

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 …

英文: In rat, from 0.8mm rostral of obex to .0mm caudal of obex, this area is .8mm long and 0.-. mm wide. 中文: 在大鼠该区从闩尾侧约.0mm平面至闩吻侧约0.8mm平面，吻尾长约.8mm，宽 …

The obex (from the Latin for barrier) is the point in the human brain at which the fourth ventricle narrows to become the central canal of the spinal cord. The obex occurs in the caudal …