valve (valv) a membranous fold in a canal or passage that prevents backward flow of material passing through it. 
ileocecal valve
valve [valv]
)
Valves of the heart.
aortic valve that guarding the entrance to the aorta from the left ventricle.
artificial cardiac valve a substitute, mechanical or composed of tissue, for a cardiac valve.
atrioventricular valves the valves between the right atrium and right ventricle (tricuspid v. ) and the left atrium and left ventricle (mitral v. ).
Béraud's valve a fold of mucous membrane sometimes occurring at the beginning of the nasolacrimal duct.
bicuspid valve mitral v.
bileaflet valve a heart valve prosthesis consisting of a circular sewing ring to which are attached two semicircular occluding disks that swing open and closed to regulate blood flow.
bioprosthetic valve an artificial cardiac valve composed of biological tissue, usually porcine.
caged-ball valve a heart valve prosthesis comprising a sewing ring attached to a cage composed of curved struts that contains a free-floating ball.
cardiac valves those controlling the flow of blood through and from the heart.
coronary valve that at the entrance of the coronary sinus into the right atrium.
flail mitral valve a cardiac valve having a cusp that has lost its normal support (as in ruptured chordae tendineae) and flutters in the blood stream.
Houston's valves permanent transverse folds, usually numbering three, in the rectum.
ileocecal valve , ileocolic valve that guarding the opening between the ileum and cecum.
mitral valve that between the left atrium and left ventricle, usually having two cusps (anterior and posterior).
pulmonary valve that at the entrance of the pulmonary trunk from the right ventricle.
pyloric valve a prominent fold of mucous membrane at the pyloric orifice of the stomach.
semilunar valve one having semilunar cusps, i.e., the aortic and pulmonary valves; sometimes used to designate the semilunar cusps composing these valves.
thebesian valve coronary v.
tilting-disk valve a heart valve prosthesis consisting of a sewing ring and a valve housing containing a suspended disk that swings between open and closed positions.
tricuspid valve that guarding the opening between the right atrium and right ventricle.
ureteral valve a congenital transverse fold across the lumen of the ureter, composed of redundant mucosa made prominent by circular muscle fibers; it usually disappears in time but may rarely cause urinary obstruction.
| ileocecal valve n. The bilabial prominence of the terminal ileum into the large intestine at the cecocolic junction in cadavers; it appears as a truncated cone with a star-shaped orifice in the living. Also called ileocolic valve. |
ileocecal valve
Etymology: L, ileum, intestine, caecus, blind, valvarum, folding door
the sphincter muscle between the ileum of the small intestine and the cecum of the large intestine. It consists of two flaps that project into the lumen of the large intestine, immediately above the vermiform appendix, preventing food from reentering the small intestine.
valve [valv]
a membranous fold in a canal or passage that prevents backward flow of material passing through it.
aortic valve a semilunar valve that separates the left ventricle and the aorta; it opens with end diastole, causing the second heart sound.
atrioventricular v's the cardiac valves between the right atrium and right ventricle (tricuspid valve) and the left atrium and left ventricle (mitral valve).
bicuspid valve mitral valve.
bicuspid aortic valve a congenital anomaly of the aortic valve, caused by incomplete separation of two of the three cusps; it is generally asymptomatic early in life but is predisposed to calcification and stenosis later on.
Braschi valve a one-way valve put into the inspiratory limb of a ventilator circuit in order to measure the intrinsic positive end-expiratory pressure.
cardiac v's valves that control flow of blood through and from the heart.
coronary valve a valve at the entrance of the coronary sinus into the right atrium.
flail mitral valve a mitral valve having a cusp that has lost its normal support (as in ruptured chordae tendineae) and flutters in the blood stream.
heart v's cardiac valves.
Heimlich valve a small one-way valve used for chest drainage, emptying into a flexible collection device; the valve prevents return of gases or fluids into the pleural space. The Heimlich valve is less than 13 cm (5 inches) long and facilitates patient ambulation; it can be used in many patients instead of a traditional water seal drainage system.
ileocecal valve (ileocolic valve) the valve guarding the opening between the ileum and cecum.
mitral valve the cardiac valve between the left atrium and left ventricle, usually having two cusps (anterior and posterior). Called also bicuspid valve.
Valves of the heart. The right heart pumps the venous blood into the lungs. The oxygenated blood returns from the lungs into the left atrium and is propelled by the left ventricle into the aorta. The insets show closed valves: the tricuspid valve has three leaflets, whereas the mitral valve has two leaflets. The aortic and pulmonary artery valves have three leaflets and resemble one another except for the fact that the coronary arteries originate from behind the cusps in the aorta. From Damjanov, 1996.
posterior urethral valve any of various types of congenital folds across the proximal part of the male urethra near the seminal colliculus, the most common cause of urethral obstruction in male infants.
pulmonary valve (pulmonic valve) the pocketlike cardiac valve that protects the orifice between the right ventricle and the pulmonary artery.
pyloric valve a prominent fold of mucous membrane at the pyloric orifice of the stomach.
thebesian valve coronary valve.
tricuspid valve the cardiac valve guarding the opening between the right atrium and right ventricle.
valve of vein (venous v's) any of the small cusps or folds found in the tunica intima of many veins, serving to prevent backflow of blood.
ileocecal
pertaining to the ileum and cecum.
ileocecal valve
the valve guarding the opening between the ileum and cecum; called also ileocolic valve.
ileocecal valve frenulum
see retinaculum morgagni.
ileocecal valve impaction
is common in horses as result of feeding on finely chopped indigestible roughage. Causes mild colic initially, followed by evidence of acute intestinal obstruction. Fatal without surgical correction. See also intestinal obstruction colic.
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