BIO 235 Lecture Exam 2 Questions With Verified Answers

BIO 235 Lecture Exam 2 Questions With Verified Answers B - answerFlow of lymph through a lymph node is slowed due to ________. A) the viscous nature of lymph B) fewer efferent vessels draining it compared to many afferent vessels feeding it C) the presence of lymphocytes and macrophages D) mini-valves A - answerTonsils have blind-ended structures called ________ that trap bacteria and particulate matter. A) tonsillar crypts B) germinal centers C) lymphoid follicles D) tonsillar corpuscles B - answerFrom the right leg, lymph moves in which order? A) right lumbar trunk, right lymphatic duct, right subclavian vein B) right lumbar trunk, thoracic duct, left subclavian vein C) right lumbar trunk, right lymphatic duct, left subclavian vein D) right lumbar trunk, thoracic duct, right subclavian vein A - answerThe blood testis barrier is to newly formed sperm cells as the blood thymus barrier is to ________. A) T lymphocyte precursors B) mast cells C) plasma cells D) white pulp D - answerWhich of the following statements is FALSE? A) Only lymph nodes filter lymph. B) T lymphocytes originate from the red bone marrow. C) Antibodies mark antigens for destruction. D) The thymus consists mainly of lymphoid tissue. D - answerWhich lymphoid organ atrophies as we age? A) tonsils B) appendix C) spleen D) thymus D - answerWhich of the following is considered a primary lymphoid organ? A) appendix B) tonsils C) spleen D) thymus D - answerWhich of the following is NOT a function of the lymphatic system? A) draining excess interstitial fluid B) carrying out immune responses C) transporting dietary fats D) transporting respiratory gases C - answerWhich of the following is NOT a function of lymph nodes?