Unit 13 Immune Response

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Unit 13 Immune Response

• Nonspecific Specific

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1. Nonspecific defense mechanisms
Sneeze, nose hair, saliva
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2. ANTIGEN / ANTIBODY

• ANTIGEN-
• FOREIGN INVADER, PATHOGEN IF CAUSES DISEASE

• Antibody- protein defense to bind to a specific
  antigen

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The INFLAMMATORY PROCESS a type of defense

• 4 Signs
• REDNESS( erythema)
• SWELLING (edema)
• HEAT
• PAIN

• Role of HISTAMINES
• As capillaries rupture they release
  histamines to dilate the vessel in order to flush
  out pathogens
• PUS
• Pus forms if WBC kill pathogens faster than
  the body can get rid of them. The dead pathogens
  form pus infection

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Immune Response

• Nonspecific
• Skin

• Specific- job of lymph system
• 2 types of Specific
• 1. Cell mediated T
• 2. Antibody mediated
• B

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3.Cell mediated

• WBC, Lymphocytes, T Cells
• Memory cells remain for years, to combat antigens
  more quickly if they appear again, gives us long
  term immunity

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4. Types of ImmunityAntibody mediated
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5. Role of Thymus

• In upper chest
• Prepares one type of LYMPHOCYTE
• Large in fetus and child

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6. Active and Passive Immunity

• ACTIVE
• Longer lasting
• Develops after you have had an illness
• Immunizations ( like your Hepatitis B)

• Passive
• Shorter live
• You take an antibiotic (it helps you this time
  but not in the future)
• Breastfeeding gives the infant some immunity