HTHSCI 1H06 Lecture Notes - Lecture 2: Vascular Resistance, Descending Aorta, Blood Gas Tension

• School: McMaster University
• Department: Health Sciences
• Course: HTHSCI 1H06
• Professor: Peter Helli

Document Summary

Distinguish key differences between fetal and postnatal / adult circulations. Describe the formation of the great vessels and associated congenital defects. Describe the partitioning of the heart into four chambers and associated congenital defects. At the lungs the oxygen level is about. We have 2 closed circuits; we have a separation of the left side and the right side of the heart. So we"re gonna have blood coming out from the left side of the heart, going out to the. We also have a difference in pressures. we have a higher pressure in the left side so. So blood is coming from the left atrium to the left ventricle to the aorta where it will then. Once oxygen exchange and co2 exchange occurs at body tissues we then have blood go to descending aorta out to the body tissues returning to the inferior and superior vena cavas to the heart.