1. Vertebrate Circulation
Bi 150/150.1

2. Functions Transport Gasses Heat Metabolic products Hormones Wastes
Blood

3. Origin of the Cardiovascular System
Mesoderm or mesenchyme gives rise to blood islands and the muscular heart.
Blood islands: precursors of blood vessels (angiogenesis) and blood cells (hematopoiesis)
Heart: immediately contractile; has four embryonic chambers: sinus venosus, atrium, ventricle, bulbus cordis

4. Components of Blood
Plasma: liquid medium, matrix of special connective tissue (blood)
Formed elements:
Erythrocytes (RBCs): oxygen-carriers
Leucocytes (WBCs): against infection and disease
Thrombocytes (platelets): blood-clotting

5. Blood Vessels Structure Function
Layers: tunica intima, tunica media, tunica adventitia
Function
Blood transport (hemodynamics) – systole, diastole
Vasoconstriction, vasodilation

6. Aortic arch evolution
Venous system evolution
Heart evolution
Single vs. Double Circulation
Retes
Lymphatic system

7. Aortic Arch Evolution

8. Venous System Evolution
Three major embryological venous systems: vitelline (yolk), cardinal, lateral abdominal
Anastomoses

9. Heart Evolution http://www.biologycorner.com/bio2/notes_fish.html

10. http://healthguide. howstuffworks

11. Single vs. Double Circulation

12. Retes
Heat regulation

13. Lymphatic System
Circulation of tissue fluid
Immunity