The aorta arises from the left ventricle as its outflow tract. Aorta forms an arch before descending downwards as the thoracic/descending aorta. This arch of aorta gives rise to three arteries; from right to left these arteries are the brachiocephalic trunk, left...
DEVELOPMENT OF INTERVENTRICULAR SEPTUM & PARTITION OF PRIMITIVE VENTRICLES Embryonic time line of Interventricular septum begins in the late 4th week and commences by the end of 7th week. By the end of 4th week, the primitive ventricle is one single...
Sinus venosus forms the inflow tract of the primitive heart tube. On each side of the sinus venosus, the common cardinal veins open into it. Anterior and posterior cardinal veins combine to form the common cardinal vein on each side of the sinus venosus. The common...
This lecture discusses about the structure, function and the differences in between the different components of the vasculature (arteries, arterioles, capillaries, venules, veins). Before delving into the details about individual components of the vasculature, an...
DEVELOPMENT OF INTERVENTRICULAR SEPTUM & PARTITION OF PRIMITIVE VENTRICLES Embryonic time line of IV Septum Development: begins in the late 4th week and commences by the end of 7th week. By the end of 4th week, the primitive ventricle is one single chamber which...
The aorta arises from the left ventricle as its outflow tract. Aorta forms an arch before descending downwards as the thoracic/descending aorta. This arch of aorta gives rise to three arteries; from right to left these arteries are the brachiocephaic trunk, left...
Atrial & Ventricular septum formation process begins at the same time by the start of the 4th week and wraps up by the 8th week. Though occurring simultaneously, however, atrial septation is a little ahead of ventricular septation. Common congenital cardiac...
INTRODUCTION: Cardiovascular system is the first organ system to start developing and reach a functional state; which is even before its own development is complete. Cardiovascular development occurs during the 3rd to 5th week of intraembryonic life. Up until the...
DIFFERENCE OF FETAL CIRCULATION FROM AN ADULT CIRUCLATION The fetus has a connection with the maternal blood supply at the site of placenta. This connection is formed by the two umbilical arteries and a single umbilical vein. The umbilical arteries carry deoxygenated...
LECTURE # 3 STUDY NOTES: CONDUCTION SYSTEM OF THE HEART SAN which is present near the opening of the superior vena cava. SA nodal cells have the highest intrinsic rhythm of spontaneous depolarization (roughly 60- 100/min) which makes them the automatic choice for the...
