Block · one region of the page, as the scanner read it. It may hold a whole story, part of one, several, or an advertisement; stitching blocks into articles is the next step. Text is supplied OCR.
Page 4 · column 8 of 9 · from the scan, no model involved
function in your body and in the body of the person who receives the blood you share. These elements are red blood cells, white cells, plasma, and platelets.
The red cells transport oxygen from the lungs tc all the other tissues in the body. From the tissues they pick up carbon dioxide that they then carry back and release in the lungs.
The white cells are the body’s defenses against disease. Some travel throughout the body and engulf and destroy bacteria; others produce antibodies against bacteria and viruses.
Platelets are small fragments of cells that repair damaged blood vessel walls and participate with other elements in the blood to produce clots.
Red cells, white cells, and platelets account for about 45 percent of the volume of blood in your body. The remaining 55 percent consists of plasma.
Plasma is a straw-yellow fluid composed of about 92 percent water and 7 percent vital proteins such as albumin, gamma globulin, jtiid sntihsinG^ philic, or clotting, factor.
95.0%