This document discusses the composition and components of blood. It states that blood is composed of plasma and cells, with plasma making up 55% and cells 45%. The main cells are red blood cells, white blood cells, and platelets. Plasma contains 91% water and proteins like albumin, globulin, and fibrinogen. Red blood cells carry oxygen through hemoglobin and have a lifespan of 120 days. White blood cells provide immunity and come in two types - granulocytes and agranulocytes. Platelets help in blood clotting and have a lifespan of 5-9 days.

1. Blood and its composition
By: PRIYANKA

2. Blood
Plasma
(55%)
Cells(45%)
Platelets
White
Blood
Cells
Red Blood
Cells

3. Plasma
 Plasma Contains:
 91% of water
 Proteins (albumin, globulin, and fibrinogen)
 Albumin: responsible for osmotic pressure.
 Globulin: alpha, beta , gamma produces antibodies.
 Fibrinogen: responsible for coagulation of blood.

5. Blood Cells
The blood cells are of three types :
Red Blood cells
White Blood cells
Platelets
Hemoglobin: It is a pigment carry oxygen.
The hemoglobin content of body 15g per 100ml
of blood.

6. Red Blood Cells
These are also known as “Erythrocytes”
The life span of RBS is 120 days.
Volume: 5-5.5 ml/mm3
The function of RBC is to carry oxygen and
collect carbon dioxide through use of
hemoglobin(iron) .
They are of Bioconcave disc shaped
No nucleus present in these cells.

8. White Blood Cells
These are also known as “Leucocytes”
The life span of WBS is 3-5days.
Volume: 5000-10,000ml/mm3
The function of WBC is to provide immunity to
body.
They are of irregular shape
Nucleus present in these cells.

10. TYPES of WBC
They are colorless cells containing a nucleus.
They are larger in size than RBC.
They are divided into two called
Granulocytes(They have granules in cytoplasm.)
Agranulocytes(They do not have granules cytoplasm)

11. WBC
Granulocytes
Neutrophils
(polymorphs)
Basophils
(Acidophils)
Eosinophils
(Mast Cells)
Agranulocutes.
Lymphocytes Monoocytes

13. Platelets
These are also known as “Thrombocytes”
The life span of platelets are 5-9 days.
Volume: 2.5 lakhs-4 lakhs.
The function of platelets is to help in formation of
blood clots immunity to body.
They are of irregular shape
Nucleus is present in these cells.

14. Contd.
 Thrombocytophenia: condition in which there is a decrease in
platelet count.
 Clotting of Blood.
 It is a defense mechanism and prevents loss of blood from site of
injury.
Stages
Prothrombin
Thromboplastin : convert prothrombin into thrombin.
Thrombin: fibrinogen to fibrin.

16. FACTS
 % of hemoglobin in male: 14-16g/100cc
 female: 12-14g/100cc
 Rate of breathing: 16-20 per/ minute.
 Volume of blood in human body: 5-6 liters.
 Ph level of blood: 7.4
 Spleen is known as blood bank and graveyard of RBC.
 AB blood group: Universal reciever
 O blood group: Universal donar.

17. Disorders of Blood.
 Anemia: There is decrease in hemoglobin(iron content)
 Hemolytic: increase destruction of RBC.
 Leucopenia: decrease number of WBC.
 Erythropoiesis: Process by which RBC is formed.
 Vitamin B12 and folic acid is essential for development of RBC.
SIZE
 WBC>RBC>Platelets.