Leukocytes: The White Blood Cells
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Questions and Answers

What is the function of white blood cells (WBC) in the body?

  • Delivering nutrients to body cells
  • Protecting the body from external and internal threats like bacteria and viruses (correct)
  • Stopping bleeding by promoting coagulation
  • Transporting oxygen to the body cells

    • What is the main component of plasma in the blood?

  • Predominantly platelets
  • Mainly red blood cells
  • Primarily white blood cells
  • Mostly water and 7% proteins (correct)

    • What is the purpose of the hematocrit test?

  • To assess the percentage of red blood cells (erythrocytes) in blood (correct)
  • To determine the percentage of platelets in the blood
  • To measure the percentage of white blood cells in the blood
  • To measure the concentration of plasma proteins

    • What gives blood its bright red color when oxygenated?

    <p>The reaction of hemoglobin with oxygen</p> Signup and view all the answers

    What can decrease coagulation and is often recommended to treat cardiovascular disease?

    <p>Aspirin</p> Signup and view all the answers

    What is the Rh blood group based on the presence or lack of?

    <p>Antigens</p> Signup and view all the answers

    What can save the life of a fetus or baby if an Rh negative mother conceives a second Rh positive child?

    <p>RhoGAM</p> Signup and view all the answers

    Which blood type is considered the universal donor in an emergency?

    <p>O negative</p> Signup and view all the answers

    Which protein is responsible for transporting fatty acids and steroid hormones?

    <p>Albumin</p> Signup and view all the answers

    What is the main function of an erythrocyte?

    <p>Oxygen and carbon dioxide transport</p> Signup and view all the answers

    Which protein is important for clotting?

    <p>Fibrinogen</p> Signup and view all the answers

    What is the main function of hemoglobin?

    <p>Oxygen and carbon dioxide transport</p> Signup and view all the answers

    What causes the regeneration of blood cells in the red marrow?

    <p>Hemopoietic growth factor</p> Signup and view all the answers

    Which cells lead towards immunity from disease?

    <p>Lymphocytes</p> Signup and view all the answers

    What is the main function of a pulse oximeter?

    <p>Measuring oxygen saturation in blood</p> Signup and view all the answers

    What causes sickle cell anemia?

    <p>The shape of the erythrocyte is changed</p> Signup and view all the answers

    Which condition is characterized by a shortage of RBC stem cells?

    <p>Aplastic anemia</p> Signup and view all the answers

    What can lead to vitamin deficient anemia?

    <p>Insufficient absorption of B12 or folate</p> Signup and view all the answers

    What is responsible for stimulating erythrocyte production?

    <p>Erythropoietin</p> Signup and view all the answers

    Which protein is made of 4 proteins and 4 irons, and attaches to oxygen for transport?

    <p>Hemoglobin</p> Signup and view all the answers

    What is the main function of leukocytes?

    <p>To protect the body</p> Signup and view all the answers

    Which type of leukocytes are the quick responders and attack bacteria well?

    <p>Neutrophils</p> Signup and view all the answers

    What is the function of basophils in the body?

    <p>Intensifying inflammation</p> Signup and view all the answers

    Which leukocyte is involved in specific immunity and can produce antibodies?

    <p>Lymphocyte</p> Signup and view all the answers

    What is the main function of platelets?

    <p>Helping in blood clotting</p> Signup and view all the answers

    What causes thrombosis?

    <p>Too much clotting</p> Signup and view all the answers

    Which pathway of coagulation is caused by trauma and is quicker?

    <p>Extrinsic pathway</p> Signup and view all the answers

    What is the role of von Willebrand factor in the process of blood clotting?

    <p>Securing the platelet plug</p> Signup and view all the answers

    What are plasma anticoagulants responsible for?

    <p>Limiting clotting or helping stop clotting</p> Signup and view all the answers

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