B. Nouts T one of th B. Th 31. After you have been sick, you have dev

B. Nouts T one of th B. Th 31. After you have been sick, you have developed aln) A. active, acquired natural immunity RRECT B. active, acquired induced immunity C. innate immunity D. passive, acquired, natural immunity. formm def 32. When arterial blood pressure increases, A. net filtration pressure becomes more positive. B. blood colloid osmotic pressure increases. C. less fluid reaches the lymphatic capillaries D. capillary hydrostatic pressure decreases 33. Functions of the respiratory system include all of the following EXCEPT surfaces from dehy B. defendi C. ng the respiratory system and other tissues from pathogenic invasion. providing an extensive preventing choking from accidental respiration of food. area for gas exchange between air and circulating blood 34. Which of the following is a correct match between the type of T cell and its function? A. Cytotoxie T cells secrete cytokines that stimulate T non-specific defenses B. Suppressor T cells help limit the degree of the immune system response. C. Helper T cells suppress the responses of T and B cells D. Memory Te cells differentiate into helper T cells as the infection proceeds. cell activation while enhancing 35. Inhalation will occur when A. the volume in the thoracic cavity increases. the pressure in the throacic cavity decreases. C. the volume in the thoracic cavity decreases. D. A and B are correct. E. B and C are correct. B. 36. Bronchioles control airflow in the respiratory system like the way control blood flow in the cardiovascular system. A. elastic arteries B. arterioles C. capillaries D. medium-sized veins responds faster 37. In response to a second exposure to an antigen, the immune system and stronger. This is due to A. specificity. B. versatility. C. memory. D. tolerance. 38. Which of the following is typically GREATER? A. The partial pressure of oxygen in alveoli. B. The partial pressure of oxygen in blood in the pulmonary artery Solution Answer for question on top (number 31): If you acquire an infection and get sick, that means you have been infected with a particular pathogen. In response to it, your body produces antibodies (White Blood Cells) and some of the WBCs remain in the body after infection subsides. If you become infected again with the same pathogen, the WBCs that remained in your body, reproduce very rapidly and kills the pathogens. This is ACTIVE IMMUNITY. So you can say that active immunity comes from exposure to pathogens. As this immnunity is not innate (i.e. inherited or based on genetic predisposition) but ACQUIRED, also called as ADAPTIVE defense mechanism for fighting against infection, you will have ACQUIRED IMMUNITY.. Thirdly, the antibodies are produced in your own body in this case (and not induced externally through vaccination/immunization or antibodies transfer, this would be NATURALIMMUNITY. That is why answer would be 'A': Active, acquired natural immunity.