NUR 631 FINAL Exam Questions and Verified Solutions Latest Update

NUR 631 FINAL Exam Questions and Verified Solutions Latest Update Some older adults have impaired inflammation and wound healing because of which problem? Circulatory system cannot adequately perfuse tissues. Complement and chemotaxis are deficient. Underlying chronic illness(es) exists. Number of mast cells is insufficient. - Answer -ANS: C In some cases, impaired healing is not directly associated with aging, in general, but can instead be linked to a chronic illness such as cardiovascular disease or diabetes mellitus. Older adults may have circulatory problems, but that would not lead directly to impaired inflammation and wound healing. Older people do not have deficient complement and chemotaxis, nor do they have insufficient mast cell numbers. In which structure does B lymphocytes mature and undergo changes that commit them to becoming B cells? Thymus gland Regional lymph nodes Bone marrow Spleen - Answer -ANS: C B lymphocytes mature and become B cells in specialized (primary) lymphoid organs—the thymus gland for T cells and the bone marrow for B cells. Neither regional lymph nodes nor the spleen are involved in changing B lymphocytes into B cells. An individual's acquired immunity is dependent on the function of which cells? (Select all that apply.) T lymphocytes B lymphocytes MacrophagesOpsonins Neutrophils - Answer -ANS: A, B, C T lymphocytes, B lymphocytes, macrophages, and dendritic cells are involved in acquired immunity. Opsonins are molecules that tag microorganisms for destruction by cells of the inflammatory system; these cells are primarily neutrophils. Neutrophils are white blood cells. The common hay fever allergy is expressed through a reaction that is mediated by which class of immunoglobulins? IgE IgG IgM T cells - Answer -ANS: A Type I reactions are mediated by antigen-specific IgE