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- Published on: 29 January 2018
- Published on: 29 January 2018Interventricular vessel of the heart
I read with interest the bright review of stable coronary syndromes (1). In the formation of the fetal muscular part
of the interventricular septum (IVS), the expanding ventricles grow and their medial walls approach and fuse, forming
the septum. The inside corner between the septum and the right anterior ventricular wall exhibits the deep pits being
called interventricular sinuses (ISs). The IS passes through the right IVS formed from the medial wall of the expanding
fetal right ventricle (RV). The opening of the interventricular vessel (IV) (kuuselian vessel) is located in the IS between
the medial walls of the expanding fetal RV and fetal left ventricle (LV). The IV is not a canal or channel or blood
vessel, but a slit between the fibres of the muscle to the outer layer of the left central muscular part of the IVS and runs
at an angle of about 90 degrees through sphincter and the left IVS into the LV. The IV exhibits 2 to 3 oval 2x5 mm
openings in the left central muscular part of the IVS surrounded by the interventricular sphincter (ISP). The ISP and the
IV are feasible to be patent by relaxing and widening of the helical heart at the right atrial filling phase at the end of the
fetal diastole. The left to right communication do not result as the earliest left ventricular activation close the ISP. The
sinoatrial node initially activates the right atrium (RA), followed by activation...
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None declared.