blood components meaning
The components of human blood are: 1  Plasma, in which the blood cells are suspended, including: 2  Red blood cells (erythrocytes) - carry oxygen from the lungs to the rest of the body. 3  White blood cells (leukocytes) - help fight infections and aid in the immune process. 4  Types of white blood cells include: 5  Lymphocytes. Red blood cells (erythrocytes) - carry oxygen from the lungs to the rest of the body. 2  White blood cells (leukocytes) - help fight infections and aid in the immune process. 3  Types of white blood cells include: 4  Lymphocytes. 5  Monocytes. 6  Eosinophils.