| ventricle of rhombencephalon | A cavity of irregular tentlike shape extending from the obex rostralward to its communication with the sylvian aqueduct, enclosed between the cerebellum dorsally and the rhombencephalic tegmentum ventrally, having a rhomboid-shaped floor (rhomboid fossa) and a tentlike roof which in its caudal part is formed by the tela choroidea and the posterior medullary velum, in its middle part by the white matter of the cerebellum, and in its narrowing rostral part (recessus superior) by the anterior medullary velum. The fourth ventricle reaches its greatest width at the pontomedullary transition, where it expands laterally behind the cerebellar peduncles into the spoutlike lateral recess, and its greatest height at the fastigial recess, which reaches up into the cerebellar white matter. Direct communication of the brain's ventricle system and the subarachnoid space is established at the level of the fourth ventricle by a median opening in the tela choroidea, the medial aperture of Magendie's foramen, which opens into the cerebellomedullary cistern, and on both sides by the lateral aperture or foramen of Luschka, which connects the lateral recess with the interpeduncular cistern. Synonym: ventriculus quartus, ventricle of rhombencephalon. (05 Mar 2000) |
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| ventricle of Sylvius | A slitlike, fluid-filled space of variable width between the left and right transparent septum, which occurs in less than 10% of human brains and may communicate with the third ventricle. Synonym: cavum septi pellucidi, Duncan's ventricle, fifth ventricle, pseudocele, pseudoventricle, sylvian ventricle, ventricle of Sylvius, ventriculus quintus, Vieussens' ventricle, Wenzel's ventricle. (05 Mar 2000) |
| ventricles | Chambers of an organ. For example, the four connected cavities (hollow spaces) in the central brain or the four chambers of the heart. (12 Dec 1998) |
| ventricles of heart | One of the two lower chambers of the heart. Synonym: ventriculus cordis. (05 Mar 2000) |
| ventricose | Bulging or swollen on one side or unequally. (05 Mar 2000) |
| ventricous | Swelling out on one side or unequally; bellied; ventricular; as, a ventricose corolla. Ventricose shell. <zoology> A spiral shell having the body whorls rounded or swollen in the middle. A bivalve shell in which the valves are strongly convex. Origin: NL. Ventricosus, fr. L. Venter belly. Source: Websters Dictionary (01 Mar 1998) |
| ventricular | <anatomy> Pertaining to a ventricle. (18 Nov 1997) |
| ventricular aberration | Abnormal intraventricular conduction of a supraventricular beat, especially where surrounding beats are normally conducted. Synonym: ventricular aberration. (05 Mar 2000) |
| ventricular afterload | Formerly, the arterial pressure or some other measure of the force that a ventricle must overcome while it contracts during ejection, contributed to by aortic or pulmonic artery impedance, peripheral vascular resistance, and mass and viscosity of blood; now, more rigorously expressed in terms of the wall stress, i.e., the tension per unit cross-sectional area in the ventricular muscle fibres (calculated by an expansion of Laplace's law utilizing pressure, internal radius, and wall thickness) that is required to produce the intracavitary pressure required during ejection. (05 Mar 2000) |
| ventricular aneurysm | Aneurysm of the ventricular portion of the membranous septum, an aneurysm that bulges toward the right in systole, often consisting of the anterior leaflet of the tricuspid valve. Synonym: cardiac aneurysm. (05 Mar 2000) |
| ventricular arrhythmia | <cardiology> A cardiac arrhythmia which originates from within the ventricles. Isolated ventricular contractions are referred to as premature ventricular contractions. Frequent premature ventricular contractions can be potentially unstable and can degrade to a more serious rhythm or cardiac arrest. (12 Jan 1998) |
| ventricular arrhythmias | Abnormal rapid heart rhythms (arrhythmias) that originate in the lower chambers of the heart (the ventricles). Ventricular arrhythmias include ventricular tachycardia and ventricular fibrillation. Both are life threatening arrhythmias most commonly associated with heart attacks or scarring of the heart muscle from previous heart attack. (12 Dec 1998) |
| ventricular arteries | Branches of the right and left coronary arteries distributed to the muscle of the ventricles. Synonym: arteriae ventriculares. (05 Mar 2000) |
| ventricular assist device | A device that supports or replaces the function of a ventricle (LVAD or RVAD indicates which ventricle). The patient's heart remains in place when this device or system is used. The device is used in patients with potentially salvageable myocardium, where centrifugal or pneumatic devices can be placed in either heterotopic or orthotopic positions (the latter is termed a total artificial heart). The function of either the left, right, or both ventricles can thus be supported for days to weeks. Either recovery of heart function or need for transplantation then becomes apparent. (05 Mar 2000) |
| ventricular band of larynx | One of the pair of folds of mucous membrane stretching across the laryngeal cavity from the angle of the thyroid cartilage to the arytenoid cartilage; they enclose a space called the rima vestibuli or false glottis. Synonym: plica vestibularis, false vocal cord, plica ventricularis, ventricular band of larynx, ventricular fold. (05 Mar 2000) |
Synonyms : Angiographies, First-Pass Radionuclide, Angiography, First-Pass Radionuclide, First Pass Radionuclide Angiography, First Pass Ventriculography, First-Pass Radionuclide Angiographies, First-Pass Radionuclide Ventriculographies, First-Pass Ventriculographies
Synonyms : Ventriculo-peritoneal Shunt, Shunt, Ventriculo-peritoneal, Shunt, Ventriculoperitoneal, Shunts, Ventriculo-peritoneal, Shunts, Ventriculoperitoneal, Ventriculo peritoneal Shunt, Ventriculo-peritoneal Shunts, Ventriculoperitoneal Shunts
Synonyms : Ventriculocisternostomies, Ventriculostomies
Synonyms : Nucleus, Ventromedial Hypothalamic
| ventricle |
The chambers of the heart that pump the blood to the body or lungs.
출처: www.peteducation.com/dict_alpha_listing.cfm
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| ventricular fibrillation |
A fast, chaotic heart rhythm that prevents the heart from pumping blood. This life-threatening arrhythmia requires immediate emergency treatment.
출처: https://www.healthforums.com/library/1,1277,articl...
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| ventricular tachycardia |
A rapid heart rhythm that originates in the ventricles. This is a serious arrhythmia that can be life-threatening without emergency treatment.
출처: https://www.healthforums.com/library/1,1277,articl...
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| ventricose |
swollen, often in the middle or to one side; of a lamella, broader midway between the stipe and the margin of the pileus.
출처: www.anbg.gov.au/glossary/webpubl/fungloss.htm
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| ventral |
front, or lower surface; of a thallus, facing towards the substratum. cf. dorsal.
출처: www.anbg.gov.au/glossary/webpubl/lichglos.htm
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