IMMUNOLOGY

Detailed explanation-1: -All of the cells found in the blood come from bone marrow. They begin their life as stem cells, and they mature into three main types of cells-RBCs, WBCs, and platelets.

Detailed explanation-2: -Blood cells. Blood contains many types of cells: white blood cells (monocytes, lymphocytes, neutrophils, eosinophils, basophils, and macrophages), red blood cells (erythrocytes), and platelets. Blood circulates through the body in the arteries and veins.

Detailed explanation-3: -The RBC count and number in an adult man per mm3 of blood is 4, 600, 000-5, 000, 000. In females, the number of RBCs are 4, 200, 000-5, 000, 000 per cubic mm of blood.

Detailed explanation-4: -blood group A – has A antigens on the red blood cells with anti-B antibodies in the plasma. blood group B – has B antigens with anti-A antibodies in the plasma. blood group O – has no antigens, but both anti-A and anti-B antibodies in the plasma.

Detailed explanation-5: -Red blood cells (erythrocytes). These carry oxygen from the lungs to the rest of the body. White blood cells (leukocytes). These help fight infections and aid in the immune process. Types of white blood cells include: Lymphocytes. Platelets (thrombocytes). These help in blood clotting.

Detailed explanation-6: -Erythrocytes (red blood cells) Erythrocytes, or red blood cells, are the most numerous of the formed elements. Leukocytes (white blood cells) Leukocytes, or white blood cells, are generally larger than erythrocytes, but they are fewer in number. Thrombocytes (platelets)