Biology unit 7 organ systems living organization notes

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Biology unit 7 organ systems living organization notes

  1. 1. BIOLOGY Unit 7 Notes: Living Organization
  2. 2. (1) Living Organization • All living things are made of cells and atoms/molecules. • Levels of Organization: – Atoms and Molecules – Organelles and Cells – Tissues – Organs – Organ Systems – Organism
  3. 3. (2) Homeostasis • Involuntary processes and reactions are in place to maintain Homeostasis within cells. • Homeostasis = Internal stability / balance.
  4. 4. (3) Nervous System • Function: – Controls all other organ systems + homeostasis. – Allows you to respond to changes/stimuli. • Made Up Of: – Brain – Spinal Cord – Nerves
  5. 5. (4) Lymphatic System • (A.K.A. The Immune System) • Function: – Protect body against harmful infectious agents + compounds. • Made Up Of: – White Blood Cells – Lymph Vessels, Nodes, and Fluid
  6. 6. (5) Cardiovascular System • Function: – Work with the respiratory system to circulate gases. – Pump nutrients throughout the body to working tissues. • Made Up Of: – Heart – Blood Vessels – Blood + Blood Cells
  7. 7. (6) Respiratory System • Function: – Work with the cardiovascular system to circulate gases. – Bring oxygen into body + expel carbon dioxide. • Made Up Of: – Nasal Cavity – Lungs – Diaphragm
  8. 8. (7) Skeletal System • Function: – Provide body support and mobility. – Protect organs. • Made Up Of: – Bones – Joints – Cartilage
  9. 9. (8) Muscular System • Function: – Body + Organ mobility. – Produce body heat. • Made Up Of: – Muscle – Ligaments + Tendons
  10. 10. (9) Digestive System • Function: – Break food into smaller pieces. – Metabolize biomolecules within food. – Absorb useful nutrients + expel waste. • Made Up Of: – Oral Cavity + Esophagus – Stomach – Small + Large Intestine – Rectum + Anus
  11. 11. (10) Excretory System • (A.K.A. The Urinary System) • Function: – Filter Blood. • Made Up Of: – Kidneys – Ureters – Bladder – Urethra
  12. 12. (11) Reproductive System • Function: – Pass genes on to produced offspring. • Made Up Of: – Male  Sperm, Testes, Penis – Female  Eggs, Ovaries + Uterus, Vagina

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