What is the circulatory system?<br />The circulatory system carries blood and dissolved substances to and from different p...
  The Heart pumps blood and substances around the body in tubes called blood vessels.</li></li></ul><li>Aorta<br />Brings ...
The Heart <br />Artery to Lungs<br />Artery to Head and Body<br />Vein from Lungs<br />Vein from Head and Body<br />Right ...
Function of the Circulatory System<br />In Respiration:<br />Delivers oxygen to the cells and removes carbon dioxide<br />
Function of the Circulatory System<br />In Nutrition:<br /><ul><li>Carries digested food substances to the cells of the bo...
Function of the Circulatory System<br />Other Functions<br />Protects body from diseases<br />WBCs ( White Blood Cells) en...
3 Types of Blood Vessels<br />ARTERY<br />	- a blood vessel that  carries blood  from the heart to the body.<br />
3 Types of Blood Vessels<br />2.	VEIN<br />	- a blood vessel that carries blood from capillaries toward the heart.<br />	-...
3 Types of Blood Vessels<br />3.	CAPILLARY<br />	-  a smaller blood vessel connecting arterioles with the ventricles or ve...
Microscopic
Nutrients and gases diffuse here
Walls one cell thick</li></li></ul><li>          Composition of a Blood<br />white blood cell<br />red blood cell<br />pla...
Red Blood Cell<br /><ul><li>A biconcave disc that is round and flat withoutanucleus
 Contains hemoglobin, a molecule specially designed to hold oxygen and carry it to cells that need it.
Can change shape to an amazing extent, without breaking, as it squeezes single file through the capillaries. </li></li></u...
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Circulatory system

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Circulatory system

  1. 1. What is the circulatory system?<br />The circulatory system carries blood and dissolved substances to and from different places in the body.<br /><ul><li> The Heart has the job of pumping these things around the body.
  2. 2. The Heart pumps blood and substances around the body in tubes called blood vessels.</li></li></ul><li>Aorta<br />Brings oxygen-rich blood from the left ventricle to the rest of the body<br />Superior Vena Cava<br />Large vein that brings oxygen-poor blood from the upper part of the body to the right atrium<br />Pulmonary Arteries<br />Bring oxygen-poor blood to the lungs<br />Pulmonary Veins<br />Bring oxygen-rich blood from each of the lungs to the left atrium<br />Pulmonary Valve<br />Prevents blood from flowing back into the right ventricle after it has entered the pulmonary artery<br />Aortic Valve<br />Prevents blood from flowing back into the left ventricle after it has entered the aorta<br />Mitral Valve<br />Prevents blood from flowing back into the left atrium after it has entered the left ventricle<br />Tricuspid Valve<br />Prevents blood from flowing back into the right atrium after it has entered the right ventricle<br />Inferior Vena Cava<br />Vein that brings oxygen-poor blood from the lower part of the body to the right atrium<br /> Structure of the Circulatory System<br />Left Atrium<br />Right Atrium<br />Left Ventricle<br />Septum<br />Right Ventricle<br />
  3. 3. The Heart <br />Artery to Lungs<br />Artery to Head and Body<br />Vein from Lungs<br />Vein from Head and Body<br />Right Atrium<br />Left Atrium<br />valve<br />Right Ventricle<br />Left Ventricle<br />
  4. 4. Function of the Circulatory System<br />In Respiration:<br />Delivers oxygen to the cells and removes carbon dioxide<br />
  5. 5. Function of the Circulatory System<br />In Nutrition:<br /><ul><li>Carries digested food substances to the cells of the body</li></li></ul><li>Function of the Circulatory System<br />In Excretion:<br />Disposes waste products and poisons that would harm the body if gets accumulated.<br />
  6. 6. Function of the Circulatory System<br />Other Functions<br />Protects body from diseases<br />WBCs ( White Blood Cells) engulf and destroys bacteria, viruses, and other harmful invaders<br />Keeps the body temperature stable<br />Helps carries hormones<br />
  7. 7. 3 Types of Blood Vessels<br />ARTERY<br /> - a blood vessel that carries blood from the heart to the body.<br />
  8. 8. 3 Types of Blood Vessels<br />2. VEIN<br /> - a blood vessel that carries blood from capillaries toward the heart.<br /> - Carries blood that contains waste and CO2<br />Exception pulmonary vein<br />Blood not under much pressure<br />Valves to prevent much gravity pull<br />Venules: larger than capillaries<br />
  9. 9. 3 Types of Blood Vessels<br />3. CAPILLARY<br /> - a smaller blood vessel connecting arterioles with the ventricles or ventrioles<br /><ul><li>Smallest vessel
  10. 10. Microscopic
  11. 11. Nutrients and gases diffuse here
  12. 12. Walls one cell thick</li></li></ul><li> Composition of a Blood<br />white blood cell<br />red blood cell<br />platelets<br />plasma<br />
  13. 13. Red Blood Cell<br /><ul><li>A biconcave disc that is round and flat withoutanucleus
  14. 14. Contains hemoglobin, a molecule specially designed to hold oxygen and carry it to cells that need it.
  15. 15. Can change shape to an amazing extent, without breaking, as it squeezes single file through the capillaries. </li></li></ul><li>White Blood Cell<br /><ul><li> The two main ones are the lymphocytes and the macrophages.
  16. 16. Macrophages ‘eat’ and digest micro-organisms .
  17. 17. Lymphocytes fight disease by making antibodies to destroy invaders by dissolving them</li></li></ul><li>Platelets<br />Platelets are bits of cell broken off larger cells<br />
  18. 18. Overview of the Circulatory System<br />

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