BIOD 152- Module 5 Exam With Satisfied Solutions

BIOD 152- Module 5 Exam With Satisfied Solutions What is rheumatoid arthritis? - -T-cells attack the synovial lining inside joints -T-cells produce interleukins, which cause inflammation inside the joints systemically What is multiple sclerosis? - Antibodies attack and/or prevent the formation of the myelin sheath around nerve cells -resulting in muscular weakness When do allergic reactions occur? - antibodies are produced against mild antigens called allergens True or false: Few people that display allergies have some type of genetic predisposition to this type of body reaction. - False. Many people General allergy reactions - red/watery eyes, sneezing, runny nose, and headaches What is anaphylaxis? - -a severe, life-threatening allergic reaction -excessive immune response to an allergen What happens in anaphylaxis? - -Antibodies are overproduced by B-cells -This overproduction increases capillary permeability causing hives, narrowing respiratory pathways, difficulty breathing Anaphylaxis can lead to anaphylactic shock. What are the shock symptoms? - - Capillaries extremely dilated -drop in blood pressure -heart failure -death if no intervention What is an anaphylactic shock intervention? - -Epinephrine auto injector The epinephrine releases into the blood stream and helps offset all of the symptoms What is edema? - swelling What is Lymphedema? - -swelling where the lymphatic system is not functioning properly to return fluid back into the circulatory system Why might the lymphatic system not be functioning properly? - a blocked vessel or a removed node for testing If not treated, what happens from lymphedema? - -vulnerable to infection -connective tissue and vessels become permanently stretched What is Tonsillitis? - inflammation of the tonsils Lymphatic vessles - -transport lymph -extend throughout most of body -one way flow valves -dependent on muscular contraction What is lymph? - -excess tissue fluid found between cells when fluid is going from arterials to capillaries to venules -once the fluid enters the lymph cap. it is then called lymph -contains WBC, fats, water, proteins, salts... Lymphatic capillaries - -absorbs fats & transports clean lymph fluid to the blood stream -Connected to capillaries of cardio system Flow of lymphatic capillaries - Lymph Cap - large lymph vessels - venous blood of the cardio system What is the lymphatic system? - helps with immunity to defend the body against disease Where are groups of lymph nodes located? - axilla, groin, neck, intestinal regions Where are lymphocytes found and what do they do? - -In lymph nodes -They eliminate pathogens