Flashcards in Chapter 32 - Guyton Deck (15):
Pluripotent stem cells develop into either?
lymphoid or myeloid stem cell
Lymphoid stem cells develop into either?
T-cell and B-cell
Myeloid stem cells develop into?
eosinophil, basophil, neutrophil, monocyte (macrophage), platelets, erythrocyte
Main function of erythrocytes (RBCs).
Iron is transported in the blood in which form?
Hormone released from kidney in response to low renal oxygenation.
erythropoietin (stimulates stem cell formation of pronormoblasts, release of reticulocytes, increase in red cell number in 5 days)
Where is erythropoietin produced?
peritubular interstitial cells of the kidney (always present in the plasma)
Normal Hg levels.
15-16 (male) gm Hg/100 mL blood, 13-14 (female) gm Hg/100 mL blood
Normal oxygen carrying capacity.
~21 ml O2/100 mL blood men, ~19 ml O2/100 mL blood women
If hematocrit is low, the percentage of reticulocytes will be greater/lower.
Primary site of hemopoietic activity in adults.
Hemoglobin excreted as?
Plasma levels indicative of iron deficiency.