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The fetal circulatory system includes three shunts to divert blood from undeveloped and partially functioning organs, as well as blood supply to and from the placenta. In humans, the circulatory system is different before and after birth. The fetal circulation is composed of the placenta, umbilical blood vessels encapsulated by the umbilical ...
Fetal circulation, circulatory system. Anatomical terminology. [edit on Wikidata] Heart development, also known as cardiogenesis, refers to the prenatal development of the heart. This begins with the formation of two endocardial tubes which merge to form the tubular heart, also called the primitive heart tube.
The congenital heart block is a rare disease that affects around 1 child in every 15,000–20,000 births. [3] However, its high mortality (which can be as high as 85% in some severe cases) makes the early diagnosis and intervention very important. [1] CHB can be isolated, where the fetus does not suffer from any other problems, or it can be a ...
Fossa ovalis (heart) Heart viewed from the front, with right atrium and right ventricle opened. Fossa ovalis is labeled in the right atrium. 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 ...
Human embryonic development or human embryogenesis is the development and formation of the human embryo. It is characterised by the processes of cell division and cellular differentiation of the embryo that occurs during the early stages of development. In biological terms, the development of the human body entails growth from a one-celled ...
The unpaired umbilical vein carries oxygen and nutrient rich blood derived from fetal-maternal blood exchange at the chorionic villi.More than two-thirds of fetal hepatic circulation is via the main portal vein, while the remainder is shunted from the left portal vein via the ductus venosus to the inferior vena cava, eventually being delivered to the fetal right atrium.
Ductus arteriosus. The fetal circulatory system, with the ductus arteriosus visible at upper right. The ductus arteriosus, also called the ductus Botalli, named after the Italian physiologist Leonardo Botallo, is a blood vessel in the developing fetus connecting the trunk of the pulmonary artery to the proximal descending aorta.
arteriosus_by_E5.11.1.8.1.0.4 E5.11.1.8.1.0.4. FMA. 70301. Anatomical terminology. [edit on Wikidata] The truncus arteriosus is a structure that is present during embryonic development. [clarification needed] It is an arterial trunk that originates from both ventricles of the heart that later divides into the aorta and the pulmonary trunk. [1]