Medical Definition of interventricular sulcus
Shallow grooves called the interventricular sulci, containing blood vessels, mark the separation between ventricles on the front and back surfaces of the heart. There are two grooves on the external surface of the heart.
Furthermore, what lies in the atrioventricular groove? One, the atrioventricular groove, is along the line where the right atrium and the right ventricle meet; it contains a branch of the right coronary artery (the coronary arteries deliver blood to the heart muscle). The other, the anterior interventricular sulcus, runs along the line between the…
Also, what is the coronary groove?
The atrioventricular or coronary groove of the heart demarcates the borders of the underlying atria from the ventricles. It is a continuous sulcus but it has been described as right and left parts in the following section for the purposes of description.
What is the function of the anterior interventricular artery?
Within the groove, the anterior interventricular artery passes around the inferior border of the heart. On the inferior surface of the heart it anastomoses with the posterior interventricular branch of the right coronary artery. The anterior interventricular artery supplies the: left ventricle.
What is the LAD artery?
The left anterior descending artery (also LAD, anterior interventricular branch of left coronary artery, or anterior descending branch) is a branch of the left coronary artery. Occlusion of this artery is often called the widow-maker infarction due to a high death risk.
What structure separates the right and left ventricles?
Which coronary artery is most commonly blocked?
What is a groove in the heart called?
The atria of the heart are separated from the ventricles by the coronary sulcus (also called coronary groove, auriculoventricular groove, atrioventricular groove, AV groove).
Where is the interventricular sulcus located?
The anterior interventricular sulcus (or anterior longitudinal sulcus) is one of two grooves that separates the ventricles of the heart, the other being the posterior interventricular sulcus. The anterior interventricular sulcus is situated on the sternocostal surface of the heart, close to its left margin.
Where is the base of the heart?
The heart is located in the middle of the thorax, with the apex facing toward the left and inferiorly, at the level of the 5th intercostal space. The base of the heart is the posterior part of the heart. The heart has four surfaces: Sternocostal surface: The anterior portion formed mostly by the right ventricle.
What is the function of middle cardiac vein?
The middle cardiac vein or posterior interventricular vein is a vein of the heart which accompanies the posterior interventricular artery. It courses in the posterior interventricular groove and drains directly into the coronary sinus close to it’s termination.
What is apex of the heart?
apex of the heart. The tip of the left ventricle, opposite the base of the heart. The apex of the heart moves considerably with each heartbeat, and the point of maximal impulse (PMI) can be felt on the chest wall above the apex. See also: apex.
What is normal LV pressure?
Normal left ventricular function. The Starling relationship in the normal human ventricle may be different than usually portrayed. In normal, resting, supine man the ventricular function curve is at its peak at a left ventricular end-diastolic pressure of approximately 10 mm Hg.
What is Fossa Ovalis?
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 fossa ovalis is the remnant of a thin fibrous sheet that covered the foramen ovale during fetal development.
What separates the atria from the ventricles?
The heart contains two upper chambers called atria and two lower chambers called ventricles. The left and right sides of the heart are separated by the septum. Valves prevent the backflow of blood and separate the atria from the ventricle and the ventricle from the pulmonary artery or aorta.
What does the right marginal artery supply?
The right marginal branch of right coronary artery (or right marginal artery) is a large marginal branch which follows the acute margin of the heart and supplies blood to both surfaces of the right ventricle.
What is Crista terminalis?
The crista terminalis is generally a smooth-surfaced, thick portion of heart muscle in a crescent shape at the opening into the right atrial appendage. On the external aspect of the right atrium, corresponding to the crista terminalis is a groove, the terminal sulcus or commonly known as sulcus terminalis.
How many pulmonary veins are there?
four pulmonary veins