BIOL 1202 : BIO 1202 Test 5
Document Summary
Arthropods and most mollusks: hemolymph surrounding body tissues acts as circulatory fluid, closed circulatory system: blood is confined to vessels and is distinct from the interstitial fluid, ex. In the lungs hco3- diffuses from the plasma into red blood cells, combining with h+ released from hemoglobin forming h2co3: carbonic acid is converted back to co2 and water. Co2 is also unloaded from hemoglobin: co2 diffuses into the plasma and interstitial fluid, co2 diffuses into alveolar space, from which it is expelled during exhalation. Chapter 43: the immune system: concept 43. 1: in innate immunity, recognition and response rely on traits common to groups of pathogens, figure 43. 2. Innate immunity (all animals: recognition of traits shared by broad ranges of pathogens, using a small set of receptors, rapid response, barrier defenses, skin, mucous membranes, secretions. Internal defenses: antimicrobial proteins: these proteins function by attacking microbes directly or by impeding reproduction, complement system: causes lysis of invading cells and helps trigger inflammation.
