2025年3月7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 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 …

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 inferior portion of the cavity is known as the obex (Latin for barrier), and extends into the central canal of the brainstem, which in turn runs through the vertebral …

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 …

The obex is the zone of transition from the closed medulla, which has a conical pear-shaped appearance to the quadriconcave open medulla. The pyramids and inferior olivary nuclei …

An on-screen capture from the optical system is shown, illustrating the measured distance between the obex on images (more posterior) and the intraoperative localization (2.8-mm …

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 …

2025年2月23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 …