The infundibulum (also known as conus arteriosus) is a conical pouch formed from the upper and left angle of the right ventricle in the chordate heart, from...

Hair follicle: the infundibulum is the cup or funnel in which a hair follicle grows. Infundibulum (heart): The infundibulum of the heart, or conus arteriosus...

The heart is a muscular organ found in most animals. This organ pumps blood through the blood vessels of the circulatory system. The pumped blood carries...

conduction system of the heart) transmits the signals generated by the sinoatrial node – the heart's pacemaker, to cause the heart muscle to contract, and...

stenosis. Later that year, he designed a punch to resect a stenosed infundibulum, which is often associated with Tetralogy of Fallot. Many thousands of...

valve in the heart of humans and most other animals, located between the left ventricle and the aorta. It is one of the four valves of the heart and one of...

two upper chambers in the heart that receives blood from the circulatory system. The blood in the atria is pumped into the heart ventricles through the atrioventricular...

the heart valves closing in a healthy 16 year old girl. The stethoscope is at the tricuspid area. Problems playing this file? See media help. A heart valve...

ventricle is one of two large chambers located toward the bottom of the heart that collect and expel blood towards the peripheral beds within the body...

tendineae (sg.: chorda tendinea) or tendinous cords, colloquially known as the heart strings, are inelastic cords of fibrous connective tissue that connect the...

horseshoe-shaped area expands to form the future ventricular infundibulum and the ventricular regions, as the heart tube continues to expand. The tube starts receiving...

The circulatory system is a system of organs that includes the heart, blood vessels, and blood which is circulated throughout the entire body of a human...

terminal sulcus is a groove on the outer surface of the right atrium of the heart marking the transition between the sinus venarum cavarum (which has a distinct...

one of the four heart valves. It has two cusps or flaps and lies between the left atrium and the left ventricle of the heart. The heart valves are all...

fibrous skeleton of the heart, is a high-density homogeneous structure of connective tissue that forms and anchors the valves of the heart, and influences the...

subendocardial branches) are located in the inner ventricular walls of the heart, just beneath the endocardium in a space called the subendocardium. The...

The left border of heart (or obtuse margin) is formed from the rounded lateral wall of the left ventricle. It is called the 'obtuse' margin because of...

pericardia), also called pericardial sac, is a double-walled sac containing the heart and the roots of the great vessels. It has two layers, an outer layer made...

The right border of the heart (right margin of heart) is a long border on the surface of the heart, and is formed by the right atrium. The atrial portion...

situated at a superior level than the aortic orifice. At the apex of the infundibulum, the pulmonary orifice is guarded by three semilunar cusps - two anterior...

Cardiac muscle (also called heart muscle or myocardium) is one of three types of vertebrate muscle tissues, the others being skeletal muscle and smooth...

vessels of the heart, and is deficient in front, where it is crossed by the root of the pulmonary trunk. On the posterior surface of the heart, the coronary...

each other with each heart beat. Ben-Horin et al. (2005) studied the composition of pericardial fluid in patients undergoing open heart surgery. They found...

arteries and veins that supply the heart muscle (myocardium). Coronary arteries supply oxygenated blood to the heart muscle. Cardiac veins then drain away...

The fossa ovalis is a depression in the right atrium of the heart, at the level of the interatrial septum, the wall between right and left atrium. The...

of cardiac muscle (heart muscle) in all animals is initiated by electrical impulses known as action potentials that in the heart are known as cardiac...

coronary circulation, which transport oxygenated blood to the heart muscle. The heart requires a continuous supply of oxygen to function and survive...

of the heart, causing it to contract. In a healthy heart, the SA node continuously produces action potentials, setting the rhythm of the heart (sinus...

connects the heart's atria and ventricles to coordinate beating in the top of the heart; it is part of the electrical conduction system of the heart. The AV...

In the heart's conduction system, Bachmann's bundle (also called the Bachmann bundle or the interatrial band) is a branch of the anterior internodal tract...