Segital section of thebrain free#

The neuroembryological development of the brain results in a striking symmetry that is evident throughout the majority of the brain. Welcome to Soton Brain Hub- videos to help explain the mysteries of the brainIn her first video for Soton Brain Hub Ellie describes the anatomy of the brain. A good working knowledge of the normal neuroanatomy of the sagittal midline is essential so that the subtle abnormalities that may manifest here can be recognised. The lamina terminalis stretches upward to fill the interval between the optic chiasm and the rostrum of the corpus callosum. Anterior to this is the lamina terminalis cistern containing the anterior cerebral artery (ACA). Its A2 or postcommunicating segment extends anterior to the lamina and rostrum of the corpus callosum. The cut surface of the anterior communicating artery is also in view connecting the contralateral ACA. In addition, orbital branches of the ACA can be seen coursing on the orbital surface of the frontal lobe. Below the lamina terminalis is the stalk of the pituitary gland with the gland resting in the sella turcica just posterosuperior to the sphenoid sinus. The mammillary body is located on the inferior surface of the hypothalamus. (Image courtesy of AL Rhoton, Jr.The sagittal midline of the brain is one of the most important sectional planes in neuroimaging. The basilar artery terminates by giving off the posterior cerebral arteries within the interpeduncular cistern. Posterior to the basis pons is the pontine tegmentum. The basilar artery courses at or near the midline of the basilar pons. The midbrain tegmentum lies anterior to the cerebral aqueduct. The medial surface of the left cerebral hemisphere is in view. The pineal gland and great cerebral vein are contained within it. Mid-sagittal view of the brain and ventricular system. From the fourth ventricle cerebrospinal fluid exits into the cisterna magna via paired lateral apertures of Luschka (not labeled) and the median aperture (foramen of Magendie) located in the inferior aspect of the roof of the fourth ventricle. Posterior to the midbrain tectum (consisting of the paired superior and inferior colliculi, the corpora quadrigemina) is the quadrigeminal cistern, a dilation of the subarachnoid space between the splenium of the corpus callosum and superior surface of the cerebellum. The third ventricle communicates via the cerebral aqueduct with the fourth ventricle, which is bounded by the posterior surfaces of the pons and medulla and the cerebellum. The midline third ventricle can be seen, including the massa intermedia, a small, variably present connection of glial tissue between opposing surfaces of the two thalami. This sheet extends from the corpus callosum to the fornix.

The anterior horns of the lateral ventricles are separated by a thin, transparent membrane, the septum pellucidum. It consists of four parts: rostrum, genu, body, and splenium. The left and right cerebral hemispheres are connected by the corpus callosum, the largest commissural structure in the brain. The straight sinus empties posteriorly into the confluence of sinuses. Here, the straight sinus also receives the great cerebral vein (of Galen) which, in turn, receives blood from deep structures via the internal cerebral vein. Buy Human Body Skeleton Anatomical Model Median Sagittal Section Brain Model Otolaryngology Anatomy - Human Anatomical Head Model Brain Anatomical Model.

Segital section of thebrain free#

The lower free edge of this dural fold contains the inferior sagittal sinus, which enters the straight sinus at the intersection of the falx cerebri and tentorium cerebelli. A sagittal section separates left from right. It is separated from the right hemisphere by the midline falx cerebri (largely removed) occupying the interhemispheric fissure. A horizontal section (or slice) of the brain separates the top from the bottom.

This section of the website will explain large and minute details of sagittal brain. Mid-sagittal view of the brain and ventricular system. The medial surface of the left cerebral hemisphere is in view. This MRI brain cross sectional anatomy tool is absolutely free to use.