borrowed from Latin ventriculus "stomach, cavity in an organ" — more at ventricle Blood Flow in the Heart.
ventricle (plural ventricles) ( anatomy , zoology ) Any small cavity within a body; a hollow part or organ , especially: ( anatomy ) One of two lower chambers of the heart . 2) communicating: all ventricles are in open communication. Word origin: named after the Italian psychiatrist and neurologist Andrea Verga who first described it in 1851. The third ventricle is a median (midline) cavity in the brain, bounded by the thalamus and hypothalamus on either side. Anatomy.
ventricle definition: 1. either of two small, hollow spaces, one in each side of the heart, that force blood into the…. either of the two lower chambers on each side of the heart that receive blood from the atria and in turn force it into the … In front, the third ventricle communicates with the lateral ventricles, and in back it communicates with the aqueduct of the midbrain (the aqueduct of Sylvius). Medical Definition of ventricle. ; It is divided into four chambers: two atria and two ventricles. Diastole is a phase in the cardiac cycle, during which the heart relaxes and allows blood to refill each atrium and each ventricle.Diastole is the longer of the two phases, and the contraction of the muscles in the heart happens rather quickly. : a cavity of a bodily part or organ: as. "The right ventricle is triangular in form, and extends from the right atrium to near the apex of the heart . ventricle [L. ventriculus, the stomach ] A muscular chamber of the heart that receives blood from an atrium and pumps blood out of the heart, either to the lungs or to the body tissue s.
Explanation of Vieussens ventricle in the largest biology dictionary online.
ventricle of Arantius 1. the rhomboid fossa, especially its lower end. blockages occurs at 4th ventricle foraminae, subarachnoid space or arachnoid granulations. ventricle meaning: 1. either of two small, hollow spaces, one in each side of the heart, that force blood into the…. Zoology.
Brain ventricle: One of the communicating cavities within the brain. (Science: anatomy) The paired ( right and left) more muscular chambers of the heart that pump blood into the pulmonary ( right ventricle) and systemic ( left ventricle) circulation.
As blood flows through capillary beds in the right and left lungs, it loads O2 and unloads CO2. Definition noun A horizontal cleft formed between the commisura fornicis (or psalterium) and the corpus callosum when the two commissural plates failed to fuse completely during fetal development. In mammals and birds, the heart is also divided into four chambers: two atria and two ventricles (figure d). Biology 101: Intro to Biology ... By definition, a ventricle is a hollow area or cavity within an organ, usually filled with some kind of fluid. fourth ventricle a median cavity in the hindbrain, containing cerebrospinal fluid. See more.
History and Etymology for ventriculus. It is located in the bottom left portion of the heart below the left atrium, separated by the mitral valve. 2. cavity of septum pellucidum. In the heart, a ventricle is a heart chamber which collects blood from an atrium and pumps it out of the heart. For the term ventricle may also exist other definitions and meanings, the meaning and definition indicated above are indicative not be used for medical and legal or special purposes. Learn more. Its anterosuperior surface is rounded and convex, and forms the larger part of the sternocostal surface of the heart. fifth ventricle cavity of septum pellucidum. The heart pumps blood through the body with the help of structures such as ventricles, atria, and valves.
The right ventricle pumps the blood out of the heart to the lungs through the pulmonary artery (remember, arteries always take blood away from the heart). 4th ventricle would also enlarge here. (2) A space in the vertebrate brain, filled with cerebrospinal fluid. Biology 101: Intro to Biology Life Science: Middle School ... By definition, a ventricle is a hollow area or cavity within an organ, usually filled with some kind of fluid. Ventricles definition, any of various hollow organs or parts in an animal body.