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17 Cards in this Set

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Blood functions
1. Transport of gases, nutrients and waste products(ex: oxygen)
2. Transport of processed molecules(ex:precursor of vitamin D from skin to liver then kidneys)
3. Transport of regulatory molecules(ex: hormones)
4. Regulation of pH and osmosis
5. Maintenance of body temp(ex: warm blood shunted to the interior of the body)
6. Protection against foreign substances(ex: antibodies)
7. Clot formation
Blood Composition
Consists of plasma and formed elements
Plasma
Mostly water(91%) and contains proteins,
Albumin-maintains osmotic pressure
Globulins- function in transport and immunity
Fibrinogen-involved in clotting
Hormones and enzymes(involved in regulation)
Formed Elements
Red Blood Cells(Erythrocytes)
White Blood Cells(leukocytes)(leuko=no color)
platelets(Thrombocytes)
Blood functions
1. Transport of gases, nutrients and waste products(ex: oxygen)
2. Transport of processed molecules(ex:precursor of vitamin D from skin to liver then kidneys)
3. Transport of regulatory molecules(ex: hormones)
4. Regulation of pH and osmosis
5. Maintenance of body temp(ex: warm blood shunted to the interior of the body)
6. Protection against foreign substances(ex: antibodies)
7. Clot formation
Blood Composition
Consists of plasma and formed elements
Plasma
Mostly water(91%) and contains proteins,
Albumin-maintains osmotic pressure
Globulins- function in transport and immunity
Fibrinogen-involved in clotting
Hormones and enzymes(involved in regulation)
Formed Elements
Red Blood Cells(Erythrocytes)
White Blood Cells(leukocytes)(leuko=no color)
platelets(Thrombocytes)
Blood functions
1. Transport of gases, nutrients and waste products(ex: oxygen)
2. Transport of processed molecules(ex:precursor of vitamin D from skin to liver then kidneys)
3. Transport of regulatory molecules(ex: hormones)
4. Regulation of pH and osmosis
5. Maintenance of body temp(ex: warm blood shunted to the interior of the body)
6. Protection against foreign substances(ex: antibodies)
7. Clot formation
Blood Composition
Consists of plasma and formed elements
Plasma
Mostly water(91%) and contains proteins,
Albumin-maintains osmotic pressure
Globulins- function in transport and immunity
Fibrinogen-involved in clotting
Hormones and enzymes(involved in regulation)
Formed Elements
Red Blood Cells(Erythrocytes)
White Blood Cells(leukocytes)(leuko=no color)
platelets(Thrombocytes)
Stem Cells
Located in red bone marrow
Differentiate into 5 formed elements:
Proerythroblasts-form Erythrocytes
Myeloblasts-form progranulocytes which make basophils, eosinophils, neutrophils
Lymphoblasts-form lymphocytes
Monoblasts-form monocytes
Megakaryoblasts-form platelets
Red Blood Cells
-are biconcave disk containing Hemoglobin and carbonic anhydrase
-more in males than females
-form stacks called Rouleaux("roll of coins")
-No nuclei or organelles, main function is transport of O2 and CO2 within the blood stream.
Hemoglobin
-Consists of 4 heme and 4 glob in molecules
-Each heme contains one Iron
-O2 is transported with Iron in Heme
-CO2 in association with Amine group of globin
Hemoglobin Types
Embryonic and fetal: have greater attraction for O2 than adult. Stops after birth.
Adult(Oxyhemoglobin-transporting oxygen, Deoxyhemoglobin and Carbaminohemoglobin: transporting carbon dioxide)
Erythropoiesis
Production of red blood cells.
Low blood O2-->kidneys produce erythropiotin-->causes erythropiosis--> Stem cell:pro erythroblast-->loses nucleus to blood-->reticulocyte-->loses ER-->RBC's=erythrocytes