ileocecal valve

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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.
semilunar v's the cardiac valves that have semilunar cusps; see aortic valve and pulmonary valve.
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.

ileal papilla

seen in the cadaver as a bilabial prominence of the terminal ileum protruding into the large intestine at the cecocolic junction; in a living person, it appears as a truncated cone with a star-shaped orifice.

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.

il·e·al or·i·fice

(il'ē-ăl ōr'i-fis) [TA]
The opening of the terminal ileum into the large intestine at the transition between the cecum and the ascending colon.
Synonym(s): ileocecal valve, ileocolic valve, ileocolic vein, ostium ileale.


Gaspard, Swiss anatomist, 1560-1624.
Bauhin gland - one of the small mixed glands deeply placed near the apex of the tongue on each side of the frenulum. Synonym(s): anterior lingual gland
Bauhin valve - Synonym(s): ileocecal valve


Nicholas (Nicolaus Tulpius), Dutch anatomist, 1593-1674.
Tulp valve - the bilabial prominence of the terminal ileum into the large intestine at the cecocolic junction as seen in cadavers. Synonym(s): ileocecal valve


Constantius (Costanzio), Italian anatomist and physician, 1543-1575.
pons varolii - in neuroanatomy, the part of the brainstem between the medulla oblongata caudally and the mesencephalon rostrally. Synonym(s): pons
valve of Varolius - the bilabial prominence of the terminal ileum into the large intestine at the cecocolic junction as seen in cadavers. Synonym(s): ileocecal valve


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.
References in periodicals archive ?
The ileocecal valve will be palpable, tender and either spasmed open or closed, both syndromes have been recognized.
Typically, one will find paraspinal muscle involvement, especially in the thoracolumbar junction from T10-L2, which feeds the thoracic and lumbar paraspinal musculature, the superior mesenteric ganglion, and the ileocecal valve itself.
Ileocecal valve syndrome is diagnosed by ruling out organic conditions and other functional type problems.
This is thought to result from reflux of an incompetent ileocecal valve.
6) The tumor of patient 1 protruded in a cauliflower-like pattern into the bowel lumen adjacent to the ileocecal valve.
Approximately 90% of intussusceptions are ileocolic, in which the terminal ileum is carried through the ileocecal valve into the colon; it may reach the rectum.
Air is then insufflated into the colon, where it encounters the intussusceptum and, it is hoped, pushes the mass back through the ileocecal valve (Figure 15).
The following potential pitfalls in the interpretation of CT colonography have to be considered: Fluid-filled segments and collapsed segments, retained stool, complex and bulbous folds, lipomas, foreign bodies, diverticulosis, the ileocecal valve, and extrinsic compression defects.
A common source of error is to mistake the ileocecal valve for a polypoid mass or vice versa.
The green discoloration of the large bowel began abruptly at the ileocecal valve and was most concentrated in the cecum.
Meckel's diverticulum is a remnant of the vitelline duct that is usually located 45 to 60 cm proximal to the ileocecal valve on the antimesenteric border of the ileum.
In a positive study, the intussusceptum is usually encountered in the transverse colon, and the initial reduction proceeds rapidly to the ileocecal valve (Figures 10A and 10B).