NATS 1670 QUIZ 3

NATS 1670 QUIZ 3 What is Clostridium difficile? - A bacteria that causes infectious diarrhea / colitis. It can occur when antibiotics "wipe-out" a person's normal gut flora. It is often considered to be a nosocomial or hospital acquired infection. What happens when there is too much immunity? - allergy autommune disease acute inflammation-sepssi, cytokine storm What are the 3 stages of immunity? - Intrinsic Innate Acquired what are the ways we prevent infection and bacteria from skin level? - Outer layer of the skin normal flora flushing (sweat) Phospho lipds what are the ways we prevent infection and bacteria from the GI tract? - Perstalisis low pH bile salts what are the ways we prevent infection and bacteria from at the nasopharynx and eye - mucus, saliva, tears flushing lysozye - destroy bacterial cells WHat are the advantages of innate immunity - Immediate one cell can recoginize and kill many pathogens What are charistricts of adaptive immunity - - take effect after a few days - leads to a state of immune memory - Specificity improves and target the pathogen of intrest WHY DO DOGS EAT POOP - TO REPOPULATE THEIR GUT FLORA WHATS THE PH OF THE STOMACH - 1 0R 2 Why do bacteria have cells walls - to help maintain osmotic pressure what disease keeps changing its strain which results in a new vaccine almost every year - influenza What are the organs of the immune system - primary