1Percent of blood that is red blood cells
Hematocrit
2Name for white blood cells
Leukocytes
3Name for red blood cells
Erythrocytes
4Condition that elevates hematocrit
Dehydration
5Conditions that decrease hematocrit
Bleeding or anemia
6Clear yellowish fluid that remains after blood cells are removed
Plasma
7Fluid that remains after blood cells and clotting proteins are removed
Serum
8Major plasma protein. Synthesized by liver cells (hepatocytes)
Serum
Albumin fibrinogen
globulins
9Production of red blood cells
Hematopoiesis
10Stem cells that develop in cells that produce RBCs, WBCs and cells that fragment and form platelets
Hemocytoblast
11Large cell that fragments to form platelets
Megakaryocytes
12Name for platelets. Platelets are cell fragments
Thrombocytes
13Site of hematopoiesis
Red bone marrow
14Common site for red bone marrow biopsy
Iliac crest of pelvic bone
15Give 2 reasons why RBCs only live 120 days
1: cannot synthesize new components because no nucleus
2: plasma membrane when they squeeze
16Where are ruptured red blood cells removed from circulation and destroyed?
1 : spleen
2 : liver
17Cell that digests lysed RBCs
Macrophages
18Hemoglobin is composed of heme groups and globin. Each heme group has one iron molecule. When Hb is recycled, the iron is removed. Name the protein that carries iron in blood.
Transferrin
19Name the two iron storage proteins found in muscle, liver, and spleen
Ferritin, hemosiderin
20Condition caused by iron-overload. Too much iron is stored in body.
Hemochromatosis
21What happens to non-iron heme?
Convert to bilirubin
22Yellowish color of skin and sclera due to buildup of bilirubin in blood.
Jaundice
23What happens to globin part of hemoglobin molecule?
Amino acids recycle