the heart structure and blood flow. objectives 1. be able to identify the structures of the heart....
TRANSCRIPT
![Page 1: The Heart Structure and Blood Flow. Objectives 1. Be able to identify the structures of the heart. 2. Be able to discuss the functions and location of](https://reader035.vdocuments.mx/reader035/viewer/2022070403/56649f2a5503460f94c43b23/html5/thumbnails/1.jpg)
The Heart
Structure and Blood Flow
![Page 2: The Heart Structure and Blood Flow. Objectives 1. Be able to identify the structures of the heart. 2. Be able to discuss the functions and location of](https://reader035.vdocuments.mx/reader035/viewer/2022070403/56649f2a5503460f94c43b23/html5/thumbnails/2.jpg)
Objectives• 1. Be able to identify the structures of
the heart.• 2. Be able to discuss the functions and
location of valves in the heart. • 3. Be able to define pulmonary and
systemic circulation. • 4. Be able to explain the sequence of
blood flow through the heart.• 5. Be able to explain coronary
circulation and coronary heart disease.
![Page 3: The Heart Structure and Blood Flow. Objectives 1. Be able to identify the structures of the heart. 2. Be able to discuss the functions and location of](https://reader035.vdocuments.mx/reader035/viewer/2022070403/56649f2a5503460f94c43b23/html5/thumbnails/3.jpg)
![Page 4: The Heart Structure and Blood Flow. Objectives 1. Be able to identify the structures of the heart. 2. Be able to discuss the functions and location of](https://reader035.vdocuments.mx/reader035/viewer/2022070403/56649f2a5503460f94c43b23/html5/thumbnails/4.jpg)
BCS
• Brachiocephalic trunk• Carotid artery• Subclavian artery
![Page 5: The Heart Structure and Blood Flow. Objectives 1. Be able to identify the structures of the heart. 2. Be able to discuss the functions and location of](https://reader035.vdocuments.mx/reader035/viewer/2022070403/56649f2a5503460f94c43b23/html5/thumbnails/5.jpg)
Valves
• Keep blood from flowing back into a chamber of the heart
• Located by entrance and exit of ventricles
![Page 6: The Heart Structure and Blood Flow. Objectives 1. Be able to identify the structures of the heart. 2. Be able to discuss the functions and location of](https://reader035.vdocuments.mx/reader035/viewer/2022070403/56649f2a5503460f94c43b23/html5/thumbnails/6.jpg)
Atrioventricular Valves
• Separates atrial chambers from ventricles
• Prevents backflow of blood into atria• Bicuspid (Mitral) on left side• Tricuspid on right side• Chordae tendineae- string-like
structures that attach AV valves to the wall of the heart
![Page 7: The Heart Structure and Blood Flow. Objectives 1. Be able to identify the structures of the heart. 2. Be able to discuss the functions and location of](https://reader035.vdocuments.mx/reader035/viewer/2022070403/56649f2a5503460f94c43b23/html5/thumbnails/7.jpg)
Semilunar Valves
• Between ventricles and large arteries that carry blood away from the heart when contraction occurs
• Since ventricles contract together (atria also contract together) the two semilunar valves open and close at the same time
![Page 8: The Heart Structure and Blood Flow. Objectives 1. Be able to identify the structures of the heart. 2. Be able to discuss the functions and location of](https://reader035.vdocuments.mx/reader035/viewer/2022070403/56649f2a5503460f94c43b23/html5/thumbnails/8.jpg)
• Pulmonary semilunar valve- at beginning of pulmonary artery (blood going to lungs); right ventricle
• Aortic semilunar valve- at beginning of aorta; allows blood to flow out of the left ventricle up into the aorta but prevents backflow
![Page 9: The Heart Structure and Blood Flow. Objectives 1. Be able to identify the structures of the heart. 2. Be able to discuss the functions and location of](https://reader035.vdocuments.mx/reader035/viewer/2022070403/56649f2a5503460f94c43b23/html5/thumbnails/9.jpg)
Right Left “BALL”
ENTRANCE:Atrioventricular Valves
Tricuspid Bicuspid(Mitral)
EXIT:SemilunarValves
Pulmonary Semilunar
Aortic semilunar
![Page 10: The Heart Structure and Blood Flow. Objectives 1. Be able to identify the structures of the heart. 2. Be able to discuss the functions and location of](https://reader035.vdocuments.mx/reader035/viewer/2022070403/56649f2a5503460f94c43b23/html5/thumbnails/10.jpg)
Circulation
• Pulmonary circulation-movement of blood from right ventricle to lungs
• Systemic circulation-movement of blood from left ventricle to body
![Page 11: The Heart Structure and Blood Flow. Objectives 1. Be able to identify the structures of the heart. 2. Be able to discuss the functions and location of](https://reader035.vdocuments.mx/reader035/viewer/2022070403/56649f2a5503460f94c43b23/html5/thumbnails/11.jpg)
![Page 12: The Heart Structure and Blood Flow. Objectives 1. Be able to identify the structures of the heart. 2. Be able to discuss the functions and location of](https://reader035.vdocuments.mx/reader035/viewer/2022070403/56649f2a5503460f94c43b23/html5/thumbnails/12.jpg)
Sequence of Blood Flow
• 1. Oxygen poor blood from vena cavas to right atrium
• 2. Pass tricuspid valve to right ventricle
• 3. Pass pulmonary semilunar valve to pulmonary artery to lungs
![Page 13: The Heart Structure and Blood Flow. Objectives 1. Be able to identify the structures of the heart. 2. Be able to discuss the functions and location of](https://reader035.vdocuments.mx/reader035/viewer/2022070403/56649f2a5503460f94c43b23/html5/thumbnails/13.jpg)
• 4. Oxygen-rich blood from lungs via pulmonary vein to left atrium
• 5. Pass bicuspid valve to left ventricle
• 6. Pass aortic semilunar valve to aorta
![Page 14: The Heart Structure and Blood Flow. Objectives 1. Be able to identify the structures of the heart. 2. Be able to discuss the functions and location of](https://reader035.vdocuments.mx/reader035/viewer/2022070403/56649f2a5503460f94c43b23/html5/thumbnails/14.jpg)
• 7. From aorta throughout body via arteries, capillaries, and veins back to the heart
![Page 15: The Heart Structure and Blood Flow. Objectives 1. Be able to identify the structures of the heart. 2. Be able to discuss the functions and location of](https://reader035.vdocuments.mx/reader035/viewer/2022070403/56649f2a5503460f94c43b23/html5/thumbnails/15.jpg)
![Page 16: The Heart Structure and Blood Flow. Objectives 1. Be able to identify the structures of the heart. 2. Be able to discuss the functions and location of](https://reader035.vdocuments.mx/reader035/viewer/2022070403/56649f2a5503460f94c43b23/html5/thumbnails/16.jpg)
Coronary Circulation and Coronary Heart Disease• Blood, which supplies oxygen and
nutrients to the myocardium of the heart, flows through the right and left coronary arteries
• Blockage of blood flow through the coronary arteries can cause myocardial infarction (heart attack)
![Page 17: The Heart Structure and Blood Flow. Objectives 1. Be able to identify the structures of the heart. 2. Be able to discuss the functions and location of](https://reader035.vdocuments.mx/reader035/viewer/2022070403/56649f2a5503460f94c43b23/html5/thumbnails/17.jpg)
Coronary Circulation and Coronary Heart Disease
• Atherosclerosis (type of “hardening of arteries” in which lipids build up on the inside wall of blood vessels) can partially or totally block coronary blood flow
• Angina pectoris—chest pain caused by inadequate oxygen to the heart
![Page 18: The Heart Structure and Blood Flow. Objectives 1. Be able to identify the structures of the heart. 2. Be able to discuss the functions and location of](https://reader035.vdocuments.mx/reader035/viewer/2022070403/56649f2a5503460f94c43b23/html5/thumbnails/18.jpg)
![Page 19: The Heart Structure and Blood Flow. Objectives 1. Be able to identify the structures of the heart. 2. Be able to discuss the functions and location of](https://reader035.vdocuments.mx/reader035/viewer/2022070403/56649f2a5503460f94c43b23/html5/thumbnails/19.jpg)