blood. body contains 4-6 l consists of – water – red blood cells – plasma – white blood...

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BLOOD

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Page 1: BLOOD. Body contains 4-6 L Consists of – Water – Red Blood Cells – Plasma – White blood cells and platelets

BLOOD

Page 2: BLOOD. Body contains 4-6 L Consists of – Water – Red Blood Cells – Plasma – White blood cells and platelets

• Body contains 4-6 L• Consists of

– Water– Red Blood Cells– Plasma– White blood cells and

platelets

Page 3: BLOOD. Body contains 4-6 L Consists of – Water – Red Blood Cells – Plasma – White blood cells and platelets

Whole Blood Sample

Red blood cells

White blood cells

Platelets

Plasma

Sample Placed in Centrifuge Blood Sample That Has Been Centrifuged

Page 4: BLOOD. Body contains 4-6 L Consists of – Water – Red Blood Cells – Plasma – White blood cells and platelets

Whole Blood Sample

Red blood cells

White blood cells

Platelets

Plasma

Sample Placed in Centrifuge

Blood Sample That Has Been Centrifuged

Page 5: BLOOD. Body contains 4-6 L Consists of – Water – Red Blood Cells – Plasma – White blood cells and platelets

Whole Blood Sample

Red blood cells

White blood cells

Platelets

Plasma

Sample Placed in Centrifuge

Blood Sample That Has Been Centrifuged

Page 6: BLOOD. Body contains 4-6 L Consists of – Water – Red Blood Cells – Plasma – White blood cells and platelets

Liquid Portion (Plasma) Carries • Blood cells

– Erythrocytes (RBC - red blood cells)

– Leucocytes (WBC - white blood cells)

• Platelets (non cellular particles)• Proteins

– Enzymes – Hormones – Endocrine System

• Nutrients - Digestive System• Gases - Respiratory System• Inorganic salts

Page 7: BLOOD. Body contains 4-6 L Consists of – Water – Red Blood Cells – Plasma – White blood cells and platelets

• Hemoglobin, iron containing molecule

• Loosely picks up oxygen in the lungs

• Loses oxygen in areas low in oxygen (diffuses)

Oxygenated Blood

Page 8: BLOOD. Body contains 4-6 L Consists of – Water – Red Blood Cells – Plasma – White blood cells and platelets

• 50% Water• 45% Erythrocytes (RBC)• 4% Plasma with Substances• 1% Leukocytes (WBC) +

Platelets

Page 9: BLOOD. Body contains 4-6 L Consists of – Water – Red Blood Cells – Plasma – White blood cells and platelets

• Transporters of– Oxygen– Carbon Dioxide

• RBC– Lack a nucleus– Contain hemoglobin– Disk-shaped

• RBC are produced in red bone marrow of – ribs, – humerus, – femur, – sternum, and other long bones

• Lives for 120 days

Page 10: BLOOD. Body contains 4-6 L Consists of – Water – Red Blood Cells – Plasma – White blood cells and platelets

• WBC fight infection/disease– Attack foreign substances

• Less abundant• Large cells• Some live for months

– Most just a few days• ALL contain nuclei

Page 11: BLOOD. Body contains 4-6 L Consists of – Water – Red Blood Cells – Plasma – White blood cells and platelets

• PLATELETS are for CLOTTING blood• Cell fragments• Produced in bone marrow• Short life span (1 week)• Fibrin (sticky network of protein fibers)

– Form a web trapping blood cells

Page 12: BLOOD. Body contains 4-6 L Consists of – Water – Red Blood Cells – Plasma – White blood cells and platelets

Break in Capillary Wall

Clumping of Platelets Clot Forms

Page 13: BLOOD. Body contains 4-6 L Consists of – Water – Red Blood Cells – Plasma – White blood cells and platelets

• Massive loss of blood requires a transfusion• Four Types

– A– B– AB– O

• Rhesus factor (Rh)– Rh+ (have antigen)– Rh- (NO antigen)

• Inherited from your parents

Page 14: BLOOD. Body contains 4-6 L Consists of – Water – Red Blood Cells – Plasma – White blood cells and platelets

• Plasma contains proteins that correspond to the shape of the different antigens

• If you mix one type with the wrong one, you get CLUMPING

• Type O is the universal donor • Type AB is the universal acceptor

Page 15: BLOOD. Body contains 4-6 L Consists of – Water – Red Blood Cells – Plasma – White blood cells and platelets