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

What condition was Erica Fine diagnosed with ten years ago?

Ulcerative colitis

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

Omitted animal products from her diet

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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