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Fourth ventricle location shown in red (E), pons (B); the floor of the ventricle is to the right, the roof to the left. The fourth ventricle has a roof at its upper (posterior) surface and a floor at its lower (anterior) surface, and side walls formed by the cerebellar peduncles (nerve bundles joining the structure on the posterior side of the ventricle to the structures on the anterior side).
The ventricles contained within the rhombencephalon become the fourth ventricle, and the ventricles contained within the mesencephalon become the aqueduct of Sylvius. Separating the anterior horns of the lateral ventricles is the septum pellucidum : a thin, triangular, vertical membrane which runs as a sheet from the corpus callosum down to the ...
A ventricle is one of two large chambers located toward the bottom of the heart that collect and expel blood towards the peripheral beds within the body and lungs. The blood pumped by a ventricle is supplied by an atrium , an adjacent chamber in the upper heart that is smaller than a ventricle.
The superior medullary velum (anterior medullary velum) is a thin, transparent lamina of white matter [citation needed] which - together with the inferior medullary velum - forms the roof of the fourth ventricle. It extends between the two superior cerebellar peduncles. The lingula of cerebellum covers - and adheres to - its dorsal surface. [1]
Atrium (heart) Blood; Cavoatrial junction; Fourth heart sound; Heart; Human body; Inferior vena cava; Lutembacher's syndrome; Mitral valve; Mitral valve repair; Pressure–volume diagram; Pulmonary artery; Pulmonary regurgitation; Pulmonary valve; Pulmonary vein; Ross procedure; Third heart sound; Tissue engineering of heart valves; Tricuspid ...
The heart is a muscular organ situated in the mediastinum.It consists of four chambers, four valves, two main arteries (the coronary arteries), and the conduction system. The left and right sides of the heart have different functions: the right side receives de-oxygenated blood through the superior and inferior venae cavae and pumps blood to the lungs through the pulmonary artery, and the left ...
Enjoy a classic game of Hearts and watch out for the Queen of Spades!
The facial colliculus is an elevated area located in the pontine tegmentum (dorsal pons), [citation needed] within the floor of the fourth ventricle (i.e. the rhomboid fossa). It is formed by fibres from the facial motor nucleus looping over the abducens nucleus. The facial colliculus is an essential landmark of the rhomboid fossa. [1]