In mammalian embryo the pulmonary aorta communicates with carotico-systemic aorta by a narrow ductus arteriosus, in the adult this connection closes learving `:-`

In mammalian embryo the pulmonary aorta communicates with carotico-systemic aorta by a narrow ductus arteriosus,in the adult this connection closes leaving :-

Pulmonary aorta in mammlian embryo communicates with aorta by a thin vessel called ductus arteriosus which later closes are remains in adult as

Pulmonary aorta in mammlian embryo communicates with aorta by a thin vessel called ductus arteriosus which later closes are remains in adult as

Read the following statements carefully : (1) Gap junction facilitates the cells to communicate with each other by connecting the cytoplasm of two adjoining cells to cytoplasm of two adjoining cells . (2) Adhering junctions help to stop substances from leaking across a tissue . (3) compound epithelium covers the dry surface of the skin only and provides protection against chemical and mechanical stresses. (4) most of the bones in vertebrates embryos are replaced by cartilages in adults. How many of the above statement is/are correct ?

Read the following statements carefully : (1) Gap junction facilitates the cells to communicate with each other by connecting the cytoplasm of two adjoining cells to cytoplasm of two adjoining cells . (2) Adhering junctions help to stop substances from leaking across a tissue . (3) compound epithelium covers the dry surface of the skin only and provides protection against chemical and mechanical stresses. (4) most of the bones in vertebrates embryos are replaced by cartilages in adults. How many of the above statement is/are correct ?

Fill in the blanks: The pulmonary trunk and aorta are connected by _____________.

Foramen ovale 1. Connects the two atria in the foetal heart 2. is a condition in which the heart valves do not completely close 3. is a shallow depression in the interventricular septum 4. is a connection between the pulmonary trunk and the aorta in the foetus

A : Isovolumetric systole of a normal cardiac cycle is responsible for the opening of semilunar valves causing the blood flow into aortic aorta and pulmonary aorta. R : During isovolumetric systole, intraventricular pressure increases as semilunar and AV valves are closed and ventricles are contracting .