Chapter 17-Blood Learning Objectives
Normal pH of blood?
7.35-7.45
Explain the role proteins have in the blood
Act as as a buffer, helps to maintain osmotic pressure, important in maintaining blood volume
Describe the structure of red blood cells
Biconcave, not a true cell, filled with hemoglobin, effective at carrying O2
Component of plasma?
Mostly water, dissolved substances- nutrients, wastes, proteins and electrolytes
List differentiate between the three different states of hemoglobin
Oxyhemoglobin (formed in lungs), deoxyglobin (formed in tissues), carbaminohemogloin (CO2 bound to GLOBIN)
List the components, and subcomponents, of the blood
Plasma, erythrocytes, Buffy coat: leukocytes (WBC) and platelets, formed elements
Identify the three functions of blood
Transport, regulation, protection
Describe the three functions of blood
Transport: Blood transports oxygen, moves waste to the kidneys and lungs and transports endocrine hormones Regulation: Regulates Ph levels, maintains body temp and maintains blood volume Protection: Prevents blood loss (clotting), gets rid of infectious agents, immune system comments: WBCs antibodies compliment proteins
Describe the structure of hemoglobin
Two parts: Globin- protein component: four polypeptide chains (2 a chains, 2 beta chains) Heme- nonprotein component Iron atom, o2 atom