2. These muscular compartments contract to pump blood. OVERVIEW OF HEART ANATOMY 1) 2) 3) 4 Chambers: The heart contains these main components:

3. These muscular compartments contract to pump blood. OVERVIEW OF HEART ANATOMY 1) 2) 3) 4 Chambers: The heart contains these main components: These tubes conduct and direct the flow of blood toward and away from the heart. Vessels:

4. These muscular compartments contract to pump blood. OVERVIEW OF HEART ANATOMY 1) 2) 3) 4 Chambers: These tubes conduct and direct the flow of blood toward and away from the heart. Vessels: These flaps help prevent the backflow of blood through the heart in order to keep it moving in one direction. 4 Valves: The heart contains these main components:

5. These muscular compartments contract to pump blood. OVERVIEW OF HEART ANATOMY 1) 2) 3) 4 Chambers: These tubes conduct and direct the flow of blood toward and away from the heart. Vessels: These flaps help prevent the backflow of blood through the heart in order to keep it moving in one direction. 4 Valves: The heart contains these main components:

6. OVERVIEW OF HEART ANATOMY Blood must flow through all of these components in order to be pumped through the heart. Let’s take a closer look at the components.

7. inferior vena cava superior vena cava right atrium right ventricle right pulmonary veins right A.V. valve right semilunar valve right pulmonary arteries arteries to head & arms left pulmonary veins left atrium left ventricle descending aorta ascending aorta left A.V. valve left semilunar valve left pulmonary arteries pulmonary trunk OVERVIEW OF HEART ANATOMY

8. left pulmonary veins inferior vena cava superior vena cava right atrium left atrium left ventricle right ventricle descending aorta right pulmonary veins ascending aorta left A.V. valve right A.V. valve left semilunar valve right semilunar valve left pulmonary arteries right pulmonary arteries pulmonary trunk arteries to head & arms OVERVIEW OF HEART ANATOMY

9. THE PATHWAY OF BLOOD THROUGH THE HEART The center of the heart contains a thick muscular wall called the _______ which divides the heart into __________. septum two halves

10. to become __________. It receives ____________ blood from the _____ body and from the _____ body. Then it sends the blood to the right and left _____ THE PATHWAY OF BLOOD THROUGH THE HEART The RIGHT Side of the Heart lungs lower deoxygenated = deoxygenated blood upper oxygenated The center of the heart contains a thick muscular wall called the _______ which divides the heart into __________. septum two halves

11. The center of the heart contains a thick muscular wall called the _______ and to the _____ body. Then it sends the blood to the _____ body THE PATHWAY OF BLOOD THROUGH THE HEART The LEFT Side of the Heart = deoxygenated blood It receives __________ blood from the left and right _____. oxygenated lungs = oxygenated blood upper lower which divides the heart into __________. septum two halves

12. DETAILS OF THE PATHWAY inferior vena cava superior vena cava a) _____________ blood from the upper body enters the heart through the ________________ and from the lower body through the _______________. Deoxygenated superior vena cava inferior vena cava

13. which, when full, will pump the blood through the ___________________________ DETAILS OF THE PATHWAY b) The deoxygenated blood is collected in the __________ right atrium to the ____________. right A.V. valve right ventricle right atrium right atrioventricular (A.V.) valveright ventricle

14. which leads up to the _______________. it will pump it through the __________________ DETAILS OF THE PATHWAY c) When the right ventricle fills with deoxygenated blood, right semilunar valve pulmonary trunk right semilunar valve pulmonary trunk

15. DETAILS OF THE PATHWAY d) The pulmonary trunk directs the blood to the ___ and _____ _________________ which will lead the blood up to the _____ to get __________. left pulmonary arteries right pulmonary arteries leftright pulmonary arterieslungs oxygenated

16. the __________ blood will return to the heart through the ___ and ______________ ____ DETAILS OF THE PATHWAY e) After picking up oxygen at the lungs, which will deposit the blood into the _________. left pulmonary veins right pulmonary veins left atrium leftright pulmonary veins left atrium oxygenated

17. it pumps it through the ______________________ DETAILS OF THE PATHWAY f) When the left atrium is full of oxygenated blood, to the ___________. left ventricle left A.V. valve left atrioventricular valve left ventricle

18. it pumps the blood up through the _________________ up to the ______________. DETAILS OF THE PATHWAY g) When the left ventricle is full of oxygenated blood, ascending aorta left semilunar valve ascending aorta

19. DETAILS OF THE PATHWAY h) The ascending aorta takes oxygenated blood to ____________ _________________, and then curves downwards to form the _______________ descending aorta which takes the blood to the lower body. arteries of the head, neck and arms descending aorta

20. DETAILS OF THE PATHWAY Let’s recap the pathway for deoxygenated blood through the right side of the heart and oxygenated blood through the left side of the heart.

22. Created by Anh-Thi Tang – Tangstar Science Copyright © April 2013 Anh-Thi Tang (a.k.a. Tangstar Science) All rights reserved by author. This document is for personal classroom use only. This entire document, or any parts within, may not be electronically distributed or posted to any website.