Introduction to Blood and Immunity
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Introduction to Blood and Immunity

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Questions and Answers

Match the type of blood cell with its primary function:

Erythrocytes = Carry oxygen and carbon dioxide Leukocytes = Immunity and defense against infection Thrombocytes = Key role in clotting Plasma = Transport nutrients and waste products

Match the type of immunity with its description:

Innate Immunity = Non-specific, inborn defenses Adaptive Immunity = Acquired defense specific to pathogens Cell-mediated Immunity = Directly attacking foreign invaders Humoral Immunity = Producing antibodies

Match the medical term with its definition:

Hematocrit = Proportion of red blood cells in the blood Hemostasis = Process of stopping bleeding Neutropenia = Decrease in the number of neutrophils Immunoglobulin = Antibody proteins protecting against infections

Match the medical root with its meaning:

<p>Hem/o = Blood Erythr/o = Red Thromb/o = Clot Leuk/o = White</p> Signup and view all the answers

Match the disorder with its description:

<p>Anemia = Deficiency of red blood cells Leukemia = Overproduction of white blood cells Autoimmune Diseases = Immune system attacks body’s own cells Immunodeficiency Disorders = Weakened immune system</p> Signup and view all the answers

Match the type of white blood cell with its role:

<p>Eosinophil = Involved in allergic reactions Lymphocyte = Involved in immune response Neutrophil = Fights off infections Basophil = Releases histamine in allergic responses</p> Signup and view all the answers

Match the term to its associated action:

<p>Immunization = Inducing immunity Antigen = Triggers an immune response Antibody = Neutralizes pathogens Thrombosis = Formation of a blood clot</p> Signup and view all the answers

Match the blood component with its composition:

<p>Plasma = 55% of blood volume Red Blood Cells = Oxygen transport White Blood Cells = Defense against infection Platelets = Clotting process</p> Signup and view all the answers

Match the medical terms with their definitions:

<p>Hypersensitivity = An exaggerated immune response to a foreign substance Lymphocyte = A type of red blood cell involved in oxygen transport Prophylaxis = Treatment given or action taken to prevent disease Cytosis = Refers to a normal decrease in the number of cells</p> Signup and view all the answers

Match the prefixes/suffixes with their meanings:

<p>Auto- = Prefix meaning 'self.' -globulin = Refers to proteins involved in immune response Lymph/o = Referring to blood cells -cytosis = Refers to a decrease in cell production</p> Signup and view all the answers

Match the type of anemia with the cause:

<p>Iron Deficiency Anemia = Secondary to chronic blood loss Pernicious Anemia = Lack of vitamin B12 Aplastic Anemia = Bone marrow failure Hemolytic Anemia = Destruction of red blood cells</p> Signup and view all the answers

Match the symptoms with the corresponding condition:

<p>Fatigue = Common in Iron Deficiency Anemia Dizziness upon standing = Not typically associated with iron overload Headaches = Can indicate anemia or dehydration Skin rash = Typically associated with hypersensitivity reactions</p> Signup and view all the answers

Match the laboratory findings with their significance in Iron Deficiency Anemia:

<p>Low Hemoglobin = Indicates reduced oxygen-carrying capacity Low Ferritin = Reflects depleted iron stores Normal Hematocrit = Often seen in early stages of anemia High Iron levels = Not typically found in iron deficiency conditions</p> Signup and view all the answers

Match the treatment with the condition it addresses:

<p>Ferrous sulfate = Used to treat Iron Deficiency Anemia Epinephrine = Used for anaphylaxis treatment Vitamin B12 supplements = Used for Pernicious Anemia Antihistamines = Used for mild allergic reactions</p> Signup and view all the answers

Match the conditions with their related terms:

<p>Anaphylaxis = Severe allergic reaction Lymphadenopathy = Disease affecting the lymph nodes Leukocytosis = Abnormal increase in white blood cells Autoimmune disease = Condition where the immune system attacks its own tissues</p> Signup and view all the answers

Study Notes

Introduction to Blood

  • Blood is the fluid that circulates throughout the body, delivering oxygen and nutrients while removing waste products from tissues.
  • Blood is composed of plasma (55%) and formed elements (45%).
    • Plasma is the liquid part of blood and contains water, proteins, and hormones.
    • Formed elements include red blood cells, white blood cells, and platelets.

Blood Cells

  • Erythrocytes (Red Blood Cells) carry oxygen and carbon dioxide.
  • Leukocytes (White Blood Cells) play a role in immunity and defending against infections.
  • Thrombocytes (Platelets) are involved in blood clotting (hemostasis).

Immunity

  • Immunity is the body's defense against harmful microorganisms and foreign substances.
  • Innate Immunity refers to non-specific, inborn defenses like skin and mucus.
  • Adaptive Immunity is an acquired defense that is specific to certain pathogens.
    • Adaptive immunity relies on T Cells and B Cells.
      • T Cells provide cell-mediated immunity, directly attacking foreign invaders.
      • B Cells are responsible for humoral immunity, producing antibodies.
  • Hem/o, Hemat/o: These roots refer to blood. (Example: hemopathy)
  • Erythr/o: Refers to red. (Example: erythropoiesis)
  • Thromb/o: Refers to clot. (Example: thrombosis)
  • Leuk/o: Refers to white. (Example: leukocytosis)
  • Hematocrit: The proportion of red blood cells in the blood.
  • Hemostasis: The process of stopping bleeding including blood clot formation.
  • Immun/o: Refers to immunity or the immune system.
  • Immunization: The process of inducing immunity.
  • Immunoglobulin (Ig): Antibody proteins that offer protection against infections.
  • Antigen: A substance that triggers an immune response.
  • Antibody (Immunoglobulin): A protein produced by B cells that helps neutralize pathogens like bacteria and viruses.
  • Neutropenia: A decrease in the number of neutrophils, a type of white blood cell, making the body more vulnerable to infections.
  • Eosinophil: A type of white blood cell involved in allergic reactions and fighting parasitic infections.
  • Lymphocyte: A type of white blood cell involved in immune response.
  • Anemia: A deficiency of red blood cells or hemoglobin.
  • Leukemia: Cancer of the blood and bone marrow that involves the overproduction of white blood cells.
  • Autoimmune Diseases: The immune system attacks the body's own cells.
  • Immunodeficiency Disorders: A weakened immune system, as seen in (human immunodeficiency virus) HIV.

Medical Terminology: Prefixes, Suffixes & Roots

  • -phylaxis: Refers to protection or prevention. (Example: Prophylaxis)
  • Anaphylaxis: A severe, potentially life-threatening allergic reaction.
  • Lymph/o: Refers to lymph or the lymphatic system, part of the immune system. (Example: Lymphocyte)
  • Lymphadenopathy: Disease affecting the lymph nodes.
  • -globulin: Refers to proteins involved in the immune response. (Example: Immunoglobulin)
  • Gamma globulin: A substance containing antibodies given for passive immunity.
  • Auto: Prefix meaning "self". (Example: Autoimmune)
  • Autoantibodies: Antibodies produced by the immune system that attack the body’s own cells.
  • -cytosis: Refers to an abnormal increase in the number of cells. (Example: Leukocytosis)
  • Hypersensitivity: An exaggerated immune response to a foreign substance.
  • Hypersensitivity reaction: Immune responses that result in damage to tissues, ranging from mild to severe (e.g., anaphylaxis).

Clinical Case: Iron Deficiency Anemia

  • Patient: Jane Smith
  • Age: 45 years
  • Gender: Female (F)
  • Occupation: Office Worker
  • Presenting Complaint: Fatigue, shortness of breath on exertion, frequent headaches, increased dizziness, especially when standing up quickly.
  • Investigations:
    • Complete Blood Count (CBC):
      • Hemoglobin: 9.0 g/dL (normal: 12-15 g/dL)
      • Hematocrit: 28% (normal: 36-46%)
      • Ferritin: 8 ng/mL (normal: 20-200 ng/mL)
      • Iron levels: Low
  • Diagnosis: Iron Deficiency Anemia secondary to chronic blood loss from menorrhagia (heavy menstrual bleeding).
  • Treatment: Ferrous sulfate 325 mg PO daily for 3 months.

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Description

This quiz covers the fundamental components and functions of blood, including erythrocytes, leukocytes, and thrombocytes. It also explores the concepts of innate and adaptive immunity, focusing on the body's defense mechanisms against pathogens. Test your knowledge on these crucial biological topics!

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