ZOO 3713C Lecture Notes - Lecture 8: Pericardiocentesis, Portal Vein, Esophageal Hiatus
Document Summary
Space between the two layers of serous membrane, Attachments to diaphragm, and sternum and heart great vessels. Space posterior to ascending aorta and pulmonary trunk and anterior to sup. vena cava. 5th or 6th left intercostal space near sternum. 2. 5 cm long, 0. 2 cm wide at anterior margin of orifice of. Rough anterior part (m. pectinati) are separated by crista terminalis. Blood from left side goes to right side causing right heart enlargement. Is superior part, smooth and leads to pulmonary trunk. These are conical muscles arising from myocardium and supplied by cords (cordae tendineae) that attach to inferior surface of cusps. Pulmonary valve: 3 semilunar cusps (r, l, a) ** 2 pulmonary veins (superior and inferior) on each side bring the blood from the lungs to the left atrium. It"s internal structure is similar to right atrium. left auricle is part of it. *ductus arteriosus: between pulmonary trunk and arch of aorta in fetus.
