Cardiovascular Pathology
نویسنده
چکیده
The heart is the first organ to form in the embryo. In mammalians and birds it consists of 4 chambers (2 atria and 2 ventricles). The systemic circulation returns non-oxygenated blood to the right atrium via the vena cava, passes to the right ventricle and from here is pumped to the lungs via the pulmonary (pulmonic) arteries. The oxygenated blood returns to the left atrium via the pulmonary veins and finally the blood is pumped to the systemic circulation by the left ventricle. In the adult animal the left ventricle is thicker than the right.
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