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Intro to A&P


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Intro to A&P

  1. 1. INTRODUCTION TOANATOMY & PHYSIOLOGY HS 220 - Whitworth University
  2. 2. ORGANIZATIONChemical COMMON Cells THEME Tissues Each layer of complexity involves Organs a group of relatedSystems units from preceding layer.Organism
  3. 3. CHEMICAL LEVEL• Smallest unit of an element that exhibits properties of that element. • C, H, O, and N are most prevalent in living organisms.• Many atoms are considered “micronutrients,” such as trace minerals and vitamins... • Vitamins A, C, E, Iron, Calcium, Chromium, etc.
  4. 4. CHEMICAL LEVEL• Atoms can exchange or share electrons to combine and form larger compounds and molecules. • Important molecules: Water (H2O), Carbohydrates (glucose), Lipids (cholesterol, steroids), Proteins (enzymes, hemoglobin), nucleotides (DNA, RNA), ATP, and Caffeine!
  5. 5. CELLS• Smallest unit of life• Current cell theory... • All living things composed of cells. • All cells arise from preexisting cells via cell division. • Contain hereditary material, which passes to other cells during cell division. • Chemical composition is similar between cells. • Metabolic processes associated with life occur within cells.
  6. 6. TISSUES• Despite commonalities in structure, cells vary greatly in shape, size, and function.• Groups of cells with similar function comprise tissues. • Four main types: epithelial, connective, muscle, and nervous tissue.
  7. 7. ORGANS• Tissues working together to accomplish a specific purpose. • Examples include skin, blood vessels, heart, lungs, etc.
  8. 8. SYSTEMS• Organs with the same general function. • Examples include: Muscular Skeletal Nervous Endocrine Circulatory System System System System System
  9. 9. ORGANISM• The top level of biological organization
  11. 11. SKELETAL
  12. 12. MUSCULAR
  13. 13. NERVOUS
  14. 14. ENDOCRINE
  17. 17. LYMPHATIC
  18. 18. DIGESTIVE
  19. 19. URINARY
  21. 21. HOMEOSTASIS• A “dynamic equilibrium” produced by the ceaseless interplay of regulatory systems and mechanisms within the body.• Goal is to create a stable environment in which cells can function.• Disease is characterized by a failure to maintain homeostasis. • Diagnosed via signs & symptoms!
  23. 23. QUESTIONS?