2007-09-20 13:14:44 · 5 answers · asked by Anonymous in Science & Mathematics ➔ Biology
Blood is made up of plasma, the liquid portion of blood without its cellular elements. Serum is the name given to plasma after a blood clot is formed. Blood also contains cellular elements, including erythrocytes or red blood cells, leukocytes or white blood cells, and thrombocytes (platelets).
Blood plasma-is a straw colored, complex liquid, comprising about 55% of the blood volume and containing the following six substances in solution.
1) water
2) plasma proteins
3) nutrients
4) electrolytes
5) hormones, vitamins, and enzymes
6) metabolic waste products
Red Blood Cells- or erythrocytes are biconcave, disc-shaped cells. They are caved in on both sides with a thin center and thicker margins. When viewed from above, they appear to have a doughnut shape.
White Blood Cells- or leukocytes are larger than the erythrocytes and granular or agranular. Leukocytes are manufactured in both red bone marrow and lymphatic tissue. Leukocytes are the body's natural defense against injury and disease.
Thrombocytes- are smallest of components of blood. They are ovoid-shaped structures, synthesized from the larger megakaryocytes in red bone marrow. Thrombocytes are not cells but fragments of megakaryocytes cytoplasm.
2007-09-21 10:45:45 · answer #1 · answered by crismarie 4 · 0⤊ 0⤋
Red blood cells, plasma, white blood cells, platelets.
2007-09-20 23:06:59 · answer #2 · answered by the jew 1 · 0⤊ 0⤋
This website is the one you need:
http://anthro.palomar.edu/blood/blood_components.htm
2007-09-20 20:20:33 · answer #3 · answered by ecolink 7 · 0⤊ 0⤋
red blood cells, white blood cells, antibodies and plasma.
2007-09-20 20:20:34 · answer #4 · answered by Anonymous · 0⤊ 0⤋
4 MAJOR COMPONENTS:
Red cells, or erythrocytes
White cells, or leukocytes
Platelets, or thrombocytes
Plasma
2007-09-20 20:31:49 · answer #5 · answered by Anonymous · 0⤊ 0⤋