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Excretory, Immune and Nervous Systems - Catharina Dolabella (Nervous…

- - - - precipitation
        
        excrete h2o, urea and salts
        
        cools the body
    - - remains of food are turned into solid for elimination. The mucus produced in the organ is also excreted
    - - breathe h2o and breathe out co2
    - - breakdown substances to be removed
      - changes hemoglobin into bile
      - turns nitrogen into urea
  - - - waste not produced by your body
    - - waste produced by your body
- - - - removes urea
      - removes water and salts
      - regulates blood pressure, volume and ph
  - - - tube that leads urine into the bladder
    - - muscle tissue made, stores urine
    - - tube that connects the bladder into outside of the body
- - - - when you breath in, cilia stop bacteria from entering
      - when it does, the mucus is sent to throat for coughing or swallowing
    - - saliva contains chemicals that break down invaders
    - - swallowed bacteria are broken down
  - - - known for eating foreign particles
      - when engulfed this particles are broken into Lysosomes
    - - constantly looking for infected cells and killing them
    - - bodies injured spots release histamines
    - - interfere virus to attack others
  - - - WBS break the particles and show to T-Cells, that find specific B-Cells to help
      - B-Cells produce antibodies that find those particles in a cell and attach
  - - - defense against harmful substances
    - - you don't produce your antibodies
      - breast-feeding
    - - you produce the antibodues
      - vaccines
        
        antigens are liberated in your immune system to create defense
      - its duration depends on antigen
    - - immune disorders
      - harmless substances can become dangerous
- - - - hearing, memory
    - - vision
    - - touch, pressure, temperature, pain
    - - voluntary muscle, balance
    - - reasoning, planning, parts of speech, movement, emotion, problem-solving
    - - breathing, heart rate, blood pressure, swallowing and digestion
  - - - brings information to CNS
    - - somatic
      - autonomic
        
        sympathetic (STRESS)
        
        parasympathetic (RELAXATION)
  - - - receive message
    - - carries message away from cell body. transmit to neurons or muscle cells
    - - substance that accelerates the transmission
      - schwann cell is the supporting cell of PNS
    - - membrane between schwann cells
  - - - signals are carried from central nervous system to outer body
    - - connects neurons within the brains and spinal cord
    - - signals are carried from outer body to central nervous system