PSL301H—Blood and Immune System Lecture 1: Intro and Red blood cells
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PSL301H—Blood and Immune System Lecture 1: Intro and Red blood cells

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Questions and Answers

What are the symptoms described in the case study?

  • Fatigue, irritability, and lightheadedness (correct)
  • Fever, cough, and sore throat
  • Nausea, vomiting, and diarrhea
  • Joint pain, muscle weakness, and skin rash

    • What condition was Erica Fine diagnosed with ten years ago?

  • Diabetes
  • Asthma
  • Hypertension
  • Ulcerative colitis (correct)

    • What dietary change did Erica Fine make over the past few months?

  • Avoided all fruits and vegetables
  • Omitted animal products from her diet (correct)
  • Started consuming large amounts of red meat
  • Increased intake of sugary snacks

    • What is the possible cause of Erica Fine's symptoms based on her dietary change?

    <p>Iron deficiency anemia</p> Signup and view all the answers

    What is the role of blood in defending against toxins and pathogens?

    <p>Defending against toxins and pathogens</p> Signup and view all the answers

    What is the approximate amount of blood in a 70 kg male?

    <p>5 liters</p> Signup and view all the answers

    What is the normal range for hematocrit in the blood?

    <p>35-54%</p> Signup and view all the answers

    Which organ is primarily responsible for producing most plasma proteins?

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

    What is the primary function of albumins in the blood?

    <p>Generating colloid osmotic pressure</p> Signup and view all the answers

    What percentage of the total blood volume is occupied by packed red blood cells in a healthy individual?

    <p>35-54%</p> Signup and view all the answers

    Which type of leukocytes are primarily responsible for phagocytosis in the body?

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

    What is the primary role of fibrinogen in the blood?

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

    Which of the following symptoms might indicate a possible infection in an individual?

    <p>Enlarged tonsils and headache</p> Signup and view all the answers

    What is the cause of high blood viscosity in an individual with a high hematocrit level?

    <p>Low oxygen delivery to tissues</p> Signup and view all the answers

    What might be the condition of an individual experiencing confusion, stiff neck, and a temperature of 39.2C?

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

    What is the primary way in which the body fights infections?

    <p>Activating the immune system</p> Signup and view all the answers

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