Blood Vessels I. Arteries Blood vessels that carry oxygenated blood away from your heart to the different parts of your body. *Arteries nearest your heart are large as they get farther from your heart they branch and rebranch like a tree.
Blood Vessels Every time your heart beats your blood rushes through these large arteries. Your ventricles are under high pressure. These large arteries expand and absorb that great pressure.
Blood Vessels Pulse – steady beating which is brought about by the flow of blood that is being pumped through one of your arteries. 1 PULSE= 1 HEART BEAT
Blood Vessels II. Capillaries – came from the Latin word “capillus” meaning hair Place where exchange of materials, nutrients and gasses occur.
Blood VesselsIII. Veins Carry non-oxygenated blood to the heart. *Blood in your veins appear darker because it has lost oxygen. Blood moves slower because it is under great pressure.
Blood Vessels Insidethe veins are valves that allows blood to travel in one direction. If the blood starts to go backwards the valves close.
Parts and Functions of HumanHeart1. Pericardium – protective membrane that surrounds the heart.
4 Chambers of the HeartAtria- collecting chambersof your heart.2. Right Atrium – collectsvenous unoxygenatedblood from your body.3. Left Atrium – receives redoxygenated blood fromyour lungs.
4 Chambers of the HeartVentricles- pumpingchambers of your heart.4. Right Ventricle- pumpsblue venous blood out ofyour heart and into lungs.5. Left Ventricle – pumpsoxygenated blood out ofyour heart to all parts of thebody.
Parts and Functions of HumanHeart 6. Tricuspid Valve – located between the RA and RV. 7. Bicuspid/Mitral Valve – located between LA and LV
Parts and Functions of Human Heart8. Pulmonary SemilunarValve – locatedbetween the RV andpulmonary artery.9. Aortic semilunar valve-located between the LVand aorta.
Parts and Functions of HumanHeart 10. Septum – divides your heart into left and right sides. Prevents the crossing of blood from one side to the other.
Parts and Functions of HumanHeart 11. Superior Vena Cava – located at the upper part of your heart and brings blood from your head and arms. 12. Inferior Vena Cava – located at the lower part of your heart and brings blood from the lower parts of your body.
Parts and Functions of HumanHeart13. Pulmonary Artery– carriesdeoxygenatedblood from your RVto the lungs.14. Pulmonary Vein –brings backoxygenated bloodfrom the lungs to theLA.
Parts and Functions of HumanHeart 15.Aorta –largest artery in the body. Brings oxygenated blood to al parts of the body.