BLOOD. Our Goal Today... Describe the components of blood.

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Blood is made up of four components:
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Presentation transcript:

BLOOD

Our Goal Today... Describe the components of blood.

Blood Complex tissue Helps combat infection Regulates body temperature Transports gases, nutrients and wastes to and from cells

Blood Makeup Plasma (55%) - water and globulins (proteins) Formed Elements (45%) - blood cells

Blood Cells Made in bone marrow Similar parent stem cells mature in different ways to become a variety of blood cells Red Blood Cells, White Blood Cells and Platelets 3E5LrI/AAAAAAAAAIE/CPQCfmSLwR8/s400/Blood%2Bthat%2Bis%2Bnot% 2Bjust%2Bred.jpg

Red Blood Cells Biconcave – lose their nuclei Specialized for transport Contain special proteins (eg. Hemoglobin) Made in bone marrow Liver and Kidneys can stimulate an increase in RBC production when oxygen levels drop RBC’s Erythrocytes

White Blood Cells Work to combat infection Made both in the bone marrow and lymphoid tissue Several types with various functions Leukocytes

fibrinogen Platelets Very small cell fragments Made in the bone marrow Initiate blood clots Thromobocytes Platelets Damage d thromboplastin prothrombinthrombin fibrin Blood clot Ca 2+

Blood Plasma Red Blood Cells White Blood Cells Platelets

Our Goal Today... Describe the components of blood.

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