anatomy and physiology

• organ- must be composed of 2 or more types of tissue (ex. stomach)
• tissue- composed of group of cells with common shape and function
• 4 primary tissues:

  • epithelial tissue - used to cover/lining
  • connective tissue - support
  • muscle tissue - movement
  • nervous tissue - control
• cells- are made from/up of molecules, basic functional unit of your body. it can survive
• cells can sustain their own existence if adequate nutrients are given.
• 2 ways to approach anatomy:

  1. systematic
  2. regional
• systematic anatomy- examine the organ system
• regional anatomy - examine the region and organs within the regions
• enumerate the 11 organ systems:

  1. integumentary
  2. skeletal
  3. muscular
  4. nervous
  5. endocrine
  6. cardiovascular
  7. lymphatic
  8. respiratory
  9. digestive
  10. urinary
  11. reproductive
• integumentary- skin, hair, nails, mucous membranes that protects againstt infection and dehydration and regulates body temperature
• integumentary system: primary - skin protection against infection and dehydration , regulates body temperature

  secondary- produces vitamin D
• organs of Skeletal System: joints- sights where bones meet and connect ligaments- connects bone to bone support and protection- provides leverage for movement
• muscle + skeleton= musculoskeletal system
• hematopoiesis- process of making blood cells by bone marrow- found inside the bones
• muscular system- produces heat when muscles contract 9 exercise-heat)
• nervous system parts:

  • brain
  • spinal cors
  • nerves
• nervous system- controls and provides for sensation, movement automatic system, higher mental function via nerve impulses
• endocrine system- is like the mail system of our body