Functions and Components of Blood 0.0 / 5 ? NursingCardiovascular SystemUniversityNone Created by: ntygs19Created on: 11-03-20 16:03 What is blood? A liquid connective tissue 1 of 38 Name 3 main functions of blood? 1. Transportation 2. Regulation 3. Protection 2 of 38 Transportation of what 5 things? Oxygen, CO2, Nutrients, hormones and wastes 3 of 38 Regulation of what 3 things? pH balance, temperature, and water content of cells. 4 of 38 Protection against what 2 things? 1. Blood loss 2. Disease 5 of 38 How does blood protect against blood loss? Clotting 6 of 38 Blood protects against disease by 2 things: PWBC ? and what? Phagocytic White Blood Cells, and Proteins (e.g. antibodies) 7 of 38 What are the 2 portions of whole blood? 1. Blood Plasma 2. Formed Elements 8 of 38 What percentage of whole blood is blood plasma? What is blood plasme.... _cellular liquid contianing S_ 55%. Extracellular liquid containing solutes 9 of 38 What are formed elements? What percentage are they of whole blood? 45%. Cells and cell fragments 10 of 38 What are the 3 types of cells in Formed Elements of blood? 1. Erythrocytes 2. Leukocytes 3. Platelets 11 of 38 What are Erythrocytes? Red blood cells 12 of 38 What are platelets invovled in? Clotting 13 of 38 What are Leukocytes? White blood cells. 14 of 38 What are the 2 categories of Leukocytes? Granular and Agranular. 15 of 38 Which category do the following fit into? 1. Lymphocytes 2. Oesonophils 3. Basophils 4. Monocytes 5. Natural Killer Cells 6. Neutrophils Granular = Neutrophils; Basophils; Oesonophils Agranular = Lymphocytes; Monocytes; Natural Killer Cells 16 of 38 What is Hemopoiesis? The formation of blood cells 17 of 38 Where does Hemopoeisis occur? In Red Bone Marrow 18 of 38 Erythrocytes (RBCs) are Bi_ discs.... Do they contain a nucleus? Erythrocytes are biconcave discs (concave on top and bottom). Do NOT contain nucleus. 19 of 38 Erythrocytes contain Hemoglobin. What is the function of Hemoglobin? Transport of oxygen. 20 of 38 What is the term for the formation of erythrocytes? Where does it occur? Erythropoeisis. Red bone marrow. 21 of 38 What stimulates Erythropoeisis? Hypoxia 22 of 38 What is hypoxia? When the body is deprived of oxygen. 23 of 38 Hypoxia stimulates the release of E_ by the Kidneys Erythropoeitin 24 of 38 How long do erythrocytes generally live? 120 days 25 of 38 How is hemoglobin recycled? Phagocytosis 26 of 38 What type of cell performs Phagocytosis? Macrophages. 27 of 38 Are Leukocytes Nucleated? Yes 28 of 38 How long to Leukocytes live? only a few hours or days 29 of 38 Granular Leukocytes: What is the function of Neutrophils? Respond to first bacterial invasion 30 of 38 What is the function of Oesonophils? 2 functions. 1. Combat inflammation in allergic reactions. 2. Effective against parasitic worms 31 of 38 What is the function of Basophils? What does it liberate to achieve this? Involved in inflamation and allergic reactions. Can liberate Histamine and Serotonin 32 of 38 Agranular Leukocytes: What are the 3 types of Agranular LYMPHOCYTES? 1. B Cells. 2. T Cells 3. Natural Killer Cells 33 of 38 What are the 2 functions of B Cells? 1. Develop into plasma cells 2. Produce antibodies that help destroy bacteria and other toxins 34 of 38 What is the function of T cells Attack invading organisms 35 of 38 What is the function of Natural Killer Cells? Attack a wide variety of infectious microbes and tumor cells. 36 of 38 What is phagocytosis? What performs it? Macrophages engult (or eat) pathogens 37 of 38 What do macrophages develop from? Monocytes 38 of 38
Comments
No comments have yet been made