1. The Cardiovascular System
Anne M. Gilroy
UMass Medical School

2. Cardiovascular System
Heart
Arterial system
Capillary network
Venous system
Lymphatic system

3. Circulation Systems:
Pulmonary Circulation
Right ventricle pumps deoxygenated blood into the pulmonary trunk
Pulmonary arteries distribute blood to the capillary beds in the lungs where gas exchange occurs
Pulmonary veins return oxygenated blood to the left atrium of the heart

4. Circulation Systems:
Systemic Circulation
Left ventricle pumps oxygenated blood out of the heart into the aorta
Branches of the aorta distribute blood to capillary beds in the general body circulation where it picks up carbon dioxide and is depleted of oxygen
Superior vena cava & inferior vena cava return deoxygenated blood to the right atrium

5. Circulation Systems:
Portal system
Blood drains from one capillary bed to a second capillary bed before returning to the heart.
Hepatic portal system drains the small & large intestines, spleen, stomach and pancreas.

6. Structure of a blood vessel
3 layers:
-Intima
-Media
-Adventitia

9. Delivery Service

13. Function of Vessels

14. Arterial Anastomoses
Arteries of the abdomen, pelvis and perineum anastomose within the walls of the uterus and vagina.
Ovarian
Uterine
Vaginal
Internal pudendal

15. Relations of Blood Vessels
Large arteries travel with single large veins
Small arteries travel with paired veins

16. Relations of Blood Vessels
Veins form a superficial system and a deep system.
Arteries do not accompany veins of the superficial system

17. Relations of Blood Vessels
Arteries usually run deep to the veins they accompany

18. Veins of the limbs have valves along their length.