Cardiovascular System - Parts and Function

This presentation includes all the parts of cardiovascular system with each detailed functions.

1. Circulatory System

2. Circulatory System Responsible for transporting materials throughout the entire body.

3. Circulatory System Transports nutrients, water and oxygen. Heals and fights infections. Removes wastes.

4. Circulatory System Two divisions: Cardiovascular System Lymphatic System

5. Circulatory System Two divisions: Cardiovascular - blood Lymphatic - lymph

6. Cardiovascular System Transports nutrients, gases, hormones, and other materials to and from the cells of the body.

7. Cardiovascular System Parts: Heart Blood Vessels Blood

8. 1. Heart Muscular organ(strongest muscle) that pumps blood to the different parts of the body.

9. Heart Structure: Pericardium - sac Pericardial Cavity – filled with fluid Epicardium – outer layer Myocardium – middle layer Endocardium – inner layer

10. Heart Parts Chambers Valves Blood Vessels

11. Chambers of the Heart Four: Right and Left Atrium and Right and Left Ventricle.

12. Chambers of the Heart Atria- receiving chambers Ventricle- pumping chambers

13. Chambers of the Heart Right Atrium- receives deoxygenated blood from vena cava. Left Atrium- receives oxygenated blood from pulmonary veins.

14. Chambers of the Heart Right Ventricle- pumps blood deoxygenated blood from RA to pulmonary artery to lungs for oxygenation Left Ventricle-pumps oxygenated blood from LA to the aorta to all parts of the body.

15. Blood Vessels in the Heart Aorta – largest artery. Conveys oxygen rich blood from the LV to all parts of the body. Superior Vena Cava – conveys deoxygenated blood to the RA. Pulmonary Artery – conveys deoxygenated blood from RV to the lungs. Pulmonary Veins – Convey oxygenated blood back to the LA.

16. Valves of the Heart Atrioventricular / cuspid valves – between atria and ventricles. Semilunar Valves – located at the bases of the heart’s blood vessels and the ventricles.

17. Atrioventricular Valves of the Heart Tricuspid Valve – between right atrium and right ventricle. Bicuspid Valve – between left atrium and left ventricle.

18. Semilunar Valves of the Heart Pulmonic Valve – between right ventricle and pulmonary artery. Aortic Valve – between left ventricle and aorta.

19. 2. Blood Vessels Network of channels that convey blood to all parts of the body. Three types: Artery, Vein and Capillaries

20. 2. Blood Vessels - Artery Conveys oxygen rich blood away from the heart. Arterioles – smallest arteries. Aorta – largest artery. Elastic

21. 2. Blood Vessels - Artery Parts Tunica Externa Tunica Media Tunica Intima

22. 2. Blood Vessels - Vein Convey blood coming from the body back to the heart. Venules – smallest veins. Vena Cava – largest vein.

23. 2. Blood Vessels - Vein Parts: Tunica adventitia/ externa Tunica Media Tunica Intima/ Interna

24. 2. Blood Vessels - Capillary Exchange of materials – gases, nutrients and waste products of metabolism. Connects arterioles and venules . Smallest and thinnest.

25. Pathways of Blood Circulation Pulmonary Circulation – deoxygenated blood returns to the heart. Systemic Circulation – oxygen-rich blood is distributed to different parts of the body.

26. 3. Blood Is a liquid tissue and the circulating medium of the circulatory system. Portions: Plasma – Liquid portion Corpuscles – formed elements

27. 3. Blood - Corpuscles Erythrocytes – red blood cells Leukocytes – white blood cells Thrombocytes – platelets

28. 3. Blood - Erythrocytes Hemoglobin – makes it color red. An iron-containing molecule that can bind with oxygen.

29. 3. Blood - Leukocytes Defends the body against both infectious diseases and foreign materials.

30. 3. Blood - Thrombocytes For blood clotting .

31. 3. Blood Groups A, B, AB and O Blood Type Antigens (RBC) Antibodies (Plasma) A A Anti b B B Anti a AB A and B None O None Anti a and b