Fundamentals of Biology Lecture 1
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Questions and Answers

What is the primary concern during blood transfusions regarding the interaction between the donor's and receiver's antigens and antibodies?

  • The donor's antibodies must meet the receiver's antigenes
  • The donor's antigenes and antibodies must be identical to the receiver's
  • The donor's antigenes must meet the receiver's antibodies
  • The donor's antigenes and antibodies must be compatible with the receiver's (correct)
  • What is the term for the process by which white blood cells enter the circulation?

  • Blood clotting
  • Phagocytosis
  • Hemostasis
  • Diapedesis (correct)
  • What is the normal range of platelets in the blood?

  • 300,000-500,000 / mm3 blood
  • 10,000-50,000 / mm3 blood
  • 150,000-300,000 / mm3 blood (correct)
  • 50,000-100,000 / mm3 blood
  • What is the primary function of white blood cells?

    <p>To defend the tissues against infection and substances foreign to the body</p> Signup and view all the answers

    What is the term for the process by which platelets form a plug to stop bleeding?

    <p>Platelet plug formation</p> Signup and view all the answers

    What is the percentage of white blood cells that are involved in the immune response?

    <p>1%</p> Signup and view all the answers

    What is the universal receiver blood group?

    <p>Group AB</p> Signup and view all the answers

    What is the function of platelets in the blood clotting process?

    <p>To release platelet factor</p> Signup and view all the answers

    What is the term for the process by which the blood vessels constrict to stop bleeding?

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

    What is the primary site of production for white blood cells?

    <p>Bone marrow</p> Signup and view all the answers

    Study Notes

    Fundamentals of Biology

    • Anatomy: study of structure and location of body parts
      • Gross anatomy: study of external body structures
      • Regional anatomy: study of specific body regions
      • Systemic anatomy: study of body systems
      • Developmental anatomy: study of embryology
      • Histology: study of tissues
    • Physiology: study of functions and mechanisms of living organisms
      • Cardiophysiology: study of heart functions
      • Neurophysiology: study of nerve functions
      • Reproductive physiology: study of reproductive system functions

    Levels of Structure

    • Chemical level: atoms and molecules
      • Atoms: smallest units of matter
      • Molecules: two or more atoms joined together
      • Essential atoms for life: C, H, O, N, P, Ca, S
    • Cellular level: cells
      • Basic structural and functional units of an organism
      • Many different types of cells in the body
      • Muscle cells, nerve cells, epithelial cells, etc.
    • Tissue level: groups of similar cells working together
      • Four basic types of tissues: epithelial, connective, muscular, nervous
    • Organ level: composed of two or more different types of tissues
      • Specific functions and recognizable shape
    • Organ system level: composed of multiple organs working together
      • Examples: blood and immune system, cardiovascular system, respiratory system, etc.

    Characteristics of Human Body

    • Metabolism: all chemical processes occurring in the body
      • Conversion of food to energy
      • Conversion of food to building blocks for proteins, lipids, nucleic acids, and some carbohydrates
      • Elimination of nitrogenous wastes
    • Growth: increasing in size and number of cells
    • Movement: voluntary and involuntary movements
    • Conductivity and irritability: ability to receive stimuli and respond
    • Reproduction: asexual and sexual reproduction
    • Excretion: elimination of waste products
    • Homeostasis: maintenance of internal environment

    Homeostasis

    • Control center: detects deviation from setpoint and sends signals to effectors
    • Effectors: implement responses to restore setpoint
    • Negative feedback systems: reverse changes in controlled conditions
    • Positive feedback systems: strengthen or reinforce changes in controlled conditions

    Blood Composition and Function

    • Blood: connective tissue with cells scattered in an extracellular matrix
    • Transports: respiratory gases, nutrients, metabolic wastes, hormones
    • Involved in immunity: recognizes and destroys micro-organisms and foreign molecules
    • Composition: plasma (55%), white blood cells and platelets (1%), red blood cells (44%)
    • Plasma proteins: albumin, globulins, fibrinogen
    • Red blood cells: produced in bone marrow, 4.8/5.4 x 10^6/µL blood, hematocrit 42/47%

    Anemia

    • Decreased red blood cell production or destruction
    • Causes: blood loss, decreased production, sequestration, bone marrow damage, kidney damage, iron deficiency, B12 deficiency, thalassemia
    • Symptoms: fatigue, weakness, shortness of breath

    Blood Types

    • Antigens: surface molecular structures that trigger an immune response
    • Antibodies: proteins produced by immune system to bind to specific antigens
    • Rh system: presence or absence of antigen D
    • Blood transfusions: must be iso-group and iso-Rh, group O universal donor, group AB universal receiver

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    Description

    This quiz covers the basics of biology, including definitions of anatomy and different types of anatomy such as gross anatomy, surface anatomy, regional anatomy, and systemic anatomy.

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