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Lymphatic system (Innate defenses (Dendritic cells (ingulf pathogens in…

- - - - increases fluid movement to the injured tissue
        
        attracts immune cells
        
        engages in chemical warfare the causes inflammation
  - - - like security guards
  - - - secretes granules which increase inflamation
  - - - uses phagocytoces
  - - - asthma allergies
        
        uses degranultion and enzymes
  - - - ingulf debris
        
        lysosome breaks down unwanted substances
        
        released by respiratory burst
  - - - prevents them from becoming infected
        
        stimulates macrophages and NK cells
  - - - opsonization
        
        increases phagocytosis
  - - - stimulates high metabolism
        
        damages pathogens
  - - - dilation of blood vessels
        
        redness
        
        pain
        
        swielling
        
        attratcts neutophils
- - - - t-lymphocyte maturation
      - atrophies after puberty
    - - blood vessels and nerves enter and leave
    - - delivers blood to the spleen
    - - blood is drained
    - - t-lymphocytes, b-lymphocytes, macrophages
    - - erythrocytes, platelets, macrophages, and b-lymphocytes
- - - - can't see antigens without coreceptors
  - - - makes direct contact with an antigen
- - - - saliva, tears
        
        neutralization, aggulation
  - - - BCR receptors
  - - - Neutralization, agglutination, compliment binding
  - - - activates mast cells and basophils
  - - - uses nuetralization, aggulation, precipitation, complement fixation, opsonization, activation of NK cells
- - - - Lymphatic trunks
        
        Lymph nodes
        
        Main lymphatic organ
        
        located in the axillary, inigual, and trunk of the body
        
        Secondary lymphatic organ
        
        receives lymph from selected body regions
        
        axillary lymph nodes: breast, axilla, and upper limb
        
        Inguinal lymph nodes
        
        lower limb and pelvis
        
        cervical lymph nodes
        
        head and neck
        
        monitors lymph for any foreign pathogens
        
        Lymphatic trunks remove lymph from areas of the body
        
        On the right and left side of the body
        
        Jugular trunks
        
        drains from the head and neck
        
        Subclavian trunks
        
        upper limbs, breasts, superficial thoracic cavity
        
        Intestinal trunks
        
        deep thoracic structures
        
        Lumbar trunks
        
        lower limbs, abdominopelvic wall, pelvic organs
      - 3 tunics Intimal,media,externa
      - Next to veins
      - Lumen contains valves that prevent pooling and backflow
      - Moving lymph: contraction of skeletal muscle, pulsing of blood,contraction of large lymph vessels
      - Afferent lymphatic vessels
        
        bring lymph into the lymph node
      - Efferent lymphatic vessel
        
        lymph is drained
- - - - antibody mediated
        
        clones itself when encountering antige
        
        makes plasma proteins which stimulate production of antibodies
        
        memory cells
  - - - activated by antigone
        
        stimulates macrophages to hunt and destroy pathogens