post lab discussion

• Blood


  • Carries oxygen and nutrients to living cells and takes away waste products
  • Delivers immune cells to fight infections and it contains platelets
  • 60% plasma
  • Plasma has water, proteins, glucose, albumin, clotting factors, immunoglobulins, enzymes, antibodies, and sugar and fat particles
  • Composed of white blood cells (WBC), platelets and red blood cells (RBC)
• Red Blood Cell (Erythrocyte)

  • Biconcave
  • Carries oxygen
  • Contains hemoglobin
• Hemoglobin formation

  1. Heme

  2. Hemoglobin

  3. Erythrocytes
• Hemoglobin contains heme, the heme contains oxygen, and the oxygen binds with iron
• Blood Circulation


  1. Oxygenated blood goes into the lungs

  2. Oxygen and CO2 exchange in the alveoli

  3. Oxygenated blood returns to the heart and is pumped out to the whole body

  
• Platelets


  • Originates from stem cells in the bone marrow
  • Forms clots
  • Irregularly shaped
• Platelet-related diseases

  • Thrombocytopenia
  • Thrombocythemia
• Von Willebrand Factor


  One of the components of the platelets that makes them stick with each other
• Platelets are activated in the presence of an injury and have an average life span of 9 days before being excreted through the spleen
• Low platelet count


  Blood does not clot properly and flows outside the body
• High platelet count


  Causes blood clots without injury, leading to blockages in blood vessels and lack of blood flow to organs
• Lack of blood flow to the heart muscle can lead to heart attack
• Neutrophils


  • Polymorphonuclear
  • Granulocytes
  • Function is to fight off pathogens inside the body
  • Can permeate throughout the body
• Monocyte


  • Immature macrophage
  • Macrophages engulf and destroy foreign organisms
• Lymphocytes

  • B cells produce antibodies
  • T cells trigger other cellular immune responses
• Eosinophils


  • Release toxic proteins and free radicals to combat microorganisms and parasitic infections
  • Lead to tissue inflammation and destruction
• Basophils


  • Responsible for inflammatory reactions during immune response and in the formation of acute and chronic allergic diseases
• Mast Cells


  • Regulate vasodilation, vascular homeostasis, immune responses, angiogenesis, and venom detoxification
• Complete Blood Count (CBC)


  • Analysis of blood that provides useful information
  • Includes RBC count, hemoglobin, hematocrit, and WBC count

  
• Hemoglobin


  Specific protein in RBCs where oxygen binds
• Hematocrit


  Percentage of RBCs in whole blood
• Mean Corpuscular Volume


  Measure of RBC size
• Mean Corpuscular Hemoglobin


  Amount of hemoglobin inside an RBC