Body segments & cavities

Body segments & cavities

1. Tendency to maintain the internal equilibrium state.

2. Agents that break it

   • Agent: factor capable to affect organisms
     • Infectious or biological
       • Bacteria, virus, fungi...
         • Pathogenesis: ability to produce a disease
         • Virulence: degree of toxicity
         • Antigenic power: ability to produce an inmune response
     • Physical
       • Temperature, pressure, radiation...
     • Chemical
       • Drugs, chemicals
     • Psychological/Social

3. Ordered list of events arising from the interactions

4. A disease can lead you to: normal state, chronic disease, worsening, disability, death.

5. Genesis period: contact between host and the agents in the environment

   • Natural evolution period: prepathogenesis (no symptoms), clinical horizon, pathogenesis (symptoms)
     • Result: death, chronic state, recovery

6. Ordered list of events arising from the interactions

7. A disease can lead to: normal state, chronic disease, worsening, disability, death

8. Genesis period: contact between host & agents of the environment

   • Natural evolution period: prepathogenesis (no symptoms), clinical horizon, pathogenesis (symptoms)
     • Result: death, chronic state, recovery

9. Primary (before)

   • Vaccination, hygiene, protection...

10. Secondary (during)

    • Treatment, tests, cure, prevent the spread...

11. Tertiary (after)

    • Rehabilitation

12. Segments

    • Head & Neck
      • Skull & Face
    • Trunk
      • Thorax, Abdomen & Pelvis
    • Extremities
      • Superior: forearm, arm & hands; Inferior: thighs, legs & feet

13. Cavities

    • Spaces containing the viscera or internal organs
      • Ventral
        • Thoracic
          • Heart, lungs, oesophagus, trachea, large blood vessels & nerves; lined with ribs.
        • Abdominopelvic
          • Abdominal: gastrointestinal track, kidneys & adrenal glands; lined by the diaphragm
          • Pelvic: urogenital system & rectum
      • Dorsal
        • Cranial
          • Brain & cerebellum
        • Vertebral
          • Spinal cord