Bring Anatomy to life
The left coronary aortic sinus is another sinus of Valsalva located behind the leaflets of the aortic valve. It is named based on its association with the left coronary artery. The left coronary artery arises from this sinus, supplying blood to the left side of the heart.
The right coronary aortic sinus is one of the three sinuses of Valsalva located behind the leaflets of the aortic valve. It is named based on its association with the right coronary artery. The right coronary artery originates from this sinus, providing blood supply to the right side of the heart.
The commissures are the points where the aortic valve leaflets meet and coapt. They are located at the highest points of the valvar closure lines. The aortic valve has three commissures formed by the junction of adjacent leaflets.
The lunules of semilunar leaflets refer to the crescent-shaped surfaces of coaptation located peripherally near the commissures of the aortic valve leaflets.
The nodules of semilunar leaflets, also known as the nodules of Arantius, are thickened nodular structures located at the centre of each zone of apposition where adjacent aortic valve leaflets coapt. They help to maintain proper closure of the valve during diastole.