INTRODUCTION TOANATOMY & PHYSIOLOGY   HS 220 - Whitworth University
ORGANIZATIONChemical              COMMON  Cells        THEME Tissues       Each layer of           complexity involves Org...
CHEMICAL LEVEL•   Smallest unit of an element that exhibits    properties of that element.    •   C, H, O, and N are most ...
CHEMICAL LEVEL•   Atoms can exchange or share electrons to    combine and form larger compounds and    molecules.    •   I...
CELLS•   Smallest unit of life•   Current cell theory...    •   All living things composed of cells.    •   All cells aris...
TISSUES•   Despite commonalities in structure, cells vary    greatly in shape, size, and function.•   Groups of cells with...
ORGANS•   Tissues working together to accomplish a    specific purpose.    •   Examples include skin, blood vessels, heart,...
SYSTEMS•   Organs with the same general function.    •   Examples include:        Muscular   Skeletal   Nervous   Endocrin...
ORGANISM• The top level of  biological  organization
INTEGUMENTARY
SKELETAL
MUSCULAR
NERVOUS
ENDOCRINE
CARDIOVASCULAR
RESPIRATORY
LYMPHATIC
DIGESTIVE
URINARY
REPRODUCTIVE
HOMEOSTASIS• A “dynamic equilibrium” produced by the  ceaseless interplay of regulatory systems and  mechanisms within the...
HOMEOSTASIS
QUESTIONS?
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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
    10. 10. INTEGUMENTARY
    11. 11. SKELETAL
    12. 12. MUSCULAR
    13. 13. NERVOUS
    14. 14. ENDOCRINE
    15. 15. CARDIOVASCULAR
    16. 16. RESPIRATORY
    17. 17. LYMPHATIC
    18. 18. DIGESTIVE
    19. 19. URINARY
    20. 20. REPRODUCTIVE
    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!
    22. 22. HOMEOSTASIS
    23. 23. QUESTIONS?
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