where is the ductus arteriosus located in the fetal heart
Ductus arteriosus The ductus arteriosus is formed from the left 6th aortic arch during embryonic development[1] and attaches to the final part of the aortic arch (the isthmus of aorta) and the first part of the pulmonary artery[2]
Implantation (human embryo) On the endometrium, the apposition is usually made where there is a small crypt in it, perhaps because it increases the area of contact with the rather spherical blastocyst.
Small intestine Food from the stomach is allowed into the duodenum through the pylorus by a muscle called the pyloric sphincter.
Heart valve The mitral valve and the aortic valve are in the left heart; the tricuspid valve and the pulmonary valve are in the right heart.
Left anterior descending artery It passes at first behind the pulmonary artery and then comes forward between that vessel and the left atrium to reach the anterior interventricular sulcus, along which it descends to the notch of cardiac apex.
Eye injuries during general anaesthesia Methods to prevent intraoperative corneal injuries include