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{adj: atrioventricular, auriculoventricular} relating to or affecting the atria and ventricles of the heart
"atrioventricular disease"

{adj: intraventricular} within the system of ventricles in the brain
"intraventricular pressure"

{adj: ventricular} of or relating to a ventricle (of the heart or brain)

{n: Purkinje network, Purkinje's tissue, Purkinje's system} a network of Purkinje fibers that carry the cardiac impulse from the atrioventricular node to the ventricles of the heart and causes them to contract

{n: aorta} the large trunk artery that carries blood from the left ventricle of the heart to branch arteries

{n: aortic valve} a semilunar valve between the left ventricle and the aorta; prevents blood from flowing from the aorta back into the heart

{n: ascending aorta} the ascending part of the aorta as it emerges from the left ventricle

{n: asystole, cardiac arrest, cardiopulmonary arrest} absence of systole; failure of the ventricles of the heart to contract (usually caused by ventricular fibrillation) with consequent absence of the heart beat leading to oxygen lack and eventually to death

{n: atrioventricular bundle, bundle of His, atrioventricular trunk, truncus atrioventricularis} a bundle of modified heart muscle that transmits the cardiac impulse from the atrioventricular node to the ventricles causing them to contract

{n: atrioventricular valve} either of two heart valves through which blood flows from the atria to the ventricles; prevents return of blood to the atrium

{n: ballistocardiograph, cardiograph} a medical instrument that measures the mechanical force of cardiac contractions and the amount of blood passing through the heart during a specified period by measuring the recoil of the body as blood is pumped from the ventricles

{n: blood pressure} the pressure of the circulating blood against the walls of the blood vessels; results from the systole of the left ventricle of the heart; sometimes measured for a quick evaluation of a person's health
"adult blood pressure is considered normal at 120/80 where the first number is the systolic pressure and the second is the diastolic pressure"

{n: cardiac cycle} the complete cycle of events in the heart from the beginning of one heart beat to the beginning of the next; an electrical impulse conducted through the heart muscle that constricts the atria which is followed by constriction of the ventricles
"the cardiac cycle can be shown on an electrocardiogram"

{n: cardiac output} the amount of blood pumped out by the ventricles in a given period of time
"a resting adult has a cardiac output of about three quarts a minute"

{n: caudate nucleus, caudate} a tail-shaped basal ganglion located in a lateral ventricle of the brain

{n: cerebral aqueduct, Sylvian aqueduct, aqueductus cerebri} a canal connecting the third and fourth ventricles

{n: choroid plexus, plexus choroideus} a vascular plexus of the cerebral ventricles that regulate intraventricular pressure

{n: cor pulmonale} enlargement of the right ventricle of the heart due to disease of the lungs or of the pulmonary blood vessels

{n: ependyma} thin epithelial membrane lining the ventricles of the brain and the spinal cord canal

{n: fourth ventricle} an irregular ventricle between the third ventricle and the central canal of the spinal cord

{n: hippocampus} a complex neural structure (shaped like a sea horse) consisting of grey matter and located on the floor of each lateral ventricle; intimately involved in motivation and emotion as part of the limbic system; has a central role in the formation of memories

{n: hydrocephalus, hydrocephaly} an abnormal condition in which cerebrospinal fluid collects in the ventricles of the brain; in infants it can cause abnormally rapid growth of the head and bulging fontanelles and a small face; in adults the symptoms are primarily neurological

{n: interventricular foramen, foramen of Monro, Monro's foramen} the small opening (on both the right and left sides) that connects the third ventricle in the diencephalon with the lateral ventricle in the cerebral hemisphere

{n: lateral ventricle} either of two horseshoe-shaped ventricles one in each cerebral hemisphere; they communicate with the third ventricle via the foramen of Monro

{n: left ventricle} the chamber on the left side of the heart that receives arterial blood from the left atrium and pumps it into the aorta

{n: mitral valve prolapse} cardiopathy resulting from the mitral valve not regulating the flow of blood between the left atrium and left ventricle of the heart

{n: mitral valve, bicuspid valve, left atrioventricular valve} valve with two cusps; situated between the left atrium and the left ventricle

{n: posterior vein of the left ventricle, vena posterior ventriculi sinistri} arises near the apex of the heart and empties into the coronary sinus

{n: pulmonary stenosis} abnormal narrowing of the opening into the pulmonary artery from the right ventricle

{n: pulmonary trunk, truncus pulmonalis} the artery that carries venous blood from the right ventricle of the heart and divides into the right and left pulmonary arteries

{n: pulmonary valve} a semilunar valve between the right ventricle and the pulmonary artery; prevents blood from flowing from the artery back into the heart

{n: right ventricle} the chamber on the right side of the heart that receives venous blood from the right atrium and pumps it into the pulmonary trunk

{n: section} a very thin slice (of tissue or mineral or other substance) for examination under a microscope
"sections from the left ventricle showed diseased tissue"

{n: spinal fluid, cerebrospinal fluid} clear liquid produced in the ventricles of the brain; fills and protects cavities in the brain and spinal cord

{n: systole} the contraction of the chambers of the heart (especially the ventricles) to drive blood into the aorta and pulmonary artery

{n: systolic pressure} the blood pressure (as measured by a sphygmomanometer) during the contraction of the left ventricle of the heart

{n: tetralogy of Fallot, Fallot's tetralogy, Fallot's syndrome} a congenital heart defect producing cyanosis; characterized by four symptoms: pulmonary stenosis and ventricular septal defect and malposition of the aorta over both ventricles and hypertrophy of the right ventricle

{n: third ventricle} a narrow ventricle in the midplane below the corpus callosum; communicates with the fourth ventricle via the Sylvian aqueduct

{n: tricuspid valve, right atrioventricular valve} valve with three cusps; situated between the right atrium and the right ventricle; allows blood to pass from atrium to ventricle and closes to prevent backflow when the ventricle contracts

{n: ventricle, heart ventricle} a chamber of the heart that receives blood from an atrium and pumps it to the arteries

{n: ventricle} one of four connected cavities in the brain; is continuous with the central canal of the spinal cord and contains cerebrospinal fluid

{n: ventricular aneurysm} a localized dilation or protrusion on the wall of the left ventricle of the heart (occurring after a myocardial infarction)

{n: ventricular fibrillation} fibrillation of heart muscles resulting in interference with rhythmic contractions of the ventricles and possibly leading to cardiac arrest

{n: ventricular septal defect} a common congenital heart defect; an abnormal opening in the septum dividing the ventricles allows blood to pass directly from the left to the right ventricle; large openings may cause congestive heart failure

{v: regurgitate} pour or rush back
"The blood regurgitates into the heart ventricle"


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