Question: Activation of a group of proteins in plasma called _________ leads to inflammation, attraction of phagocytes, and enhancement of phagocytosis.
Answer Choices: Lysozymes Interferon Complement
Answer: C. Complement
Question: A rise in blood pressure detected by baroreceptors would result in a(n) _________ in heart rate due to _________ stimulation.
Answer Choices: Increase; parasympathetic Decrease; parasympathetic Decrease; sympathetic Increase; sympathetic
Answer: B. Decrease; parasympathetic
Question: What blood vessel is found in the anterior-medial thigh?
Answer Choices: External iliac a. Deep femoral a. Posterior tibial a. Femoral a.
Answer: D. Femoral a.
Question: What is the name of the structure found in lymphatic vessels indicated by the arrows?
Answer Choices: Collecting duct Lymphatic nodule Lymph node Valve
Answer: D. Valve
Question: Persons with _________ blood have neither antigen A nor antigen B on their red blood cells but have antibody anti-A and antibody anti-B in their plasma.
Answer Choices: Type O Type A Type AB Type B
Answer: A. Type O
Question: What function does heparin and coumadin have in common?
Answer Choices: Dissolution of fibrin clot Prevention of coagulation Stabilization of fibrin clot Initiation of coagulation
Answer: B. Prevention of coagulation
Question: How do respiratory movements aid in blood flow?
Answer Choices: They are the major force in venous flow. They massage blood from the limbs towards the heart. They draw blood into the atria from the vena cavae and pulmonary veins. They promote flow from the abdominal veins to the thoracic veins.
Answer: D. They promote flow from the abdominal veins to the thoracic veins.
Question: What is systolic pressure?
Answer Choices: The maximum pressure achieved during ventricular contraction The average pressure in the arteries during a heart beat The maximum pressure achieved during ventricular relaxation The bottom number in a blood pressure reading
Answer: A. The maximum pressure achieved during ventricular contraction
Question: What cell type functions to engulf and destroy foreign substances, damaged cells, and cellular debris as lymph is being filtered by lymph nodes?
Answer Choices: Lymphocytes Macrophages Neutrophils
Answer: B. Macrophages
Question: Gabriel has been diagnosed with the genetic disorder called agammaglobulinemia… This, in turn, is due to a deficiency of _________ within his immune system.
Answer Choices: Cytotoxic T cells NK cells B lymphocytes Macrophages
Answer: C. B lymphocytes
Question: Antibodies binding to their antigen can activate complement. This, in turn, leads to opsonization of the antigen-antibody complexes. What is meant by the term opsonization?
Answer Choices: Coating antibody-antigen complexes, making them more easily phagocytized by macrophages and neutrophils Lysis of the cells bearing the antibody-antigen complexes Clumping together of the antibody-antigen complexes Clumping of antibody-antigen complexes into insoluble substances
Answer: A. Coating antibody-antigen complexes, making them more easily phagocytized by macrophages and neutrophils
Question: This figure shows the result of interaction of RBC antigens (A antigens) with the antibody against the RBC antigen (anti-A antibodies). This result is called _________.
Answer Choices: Agglutination Coagulation Hemostasis Transfusion
Answer: A. Agglutination
Question: After hemoglobin is broken down into heme and globin, heme decomposes into iron (which is later recycled in the bone marrow) and a greenish pigment called _________, which will later be converted into _________.
Answer Choices: Bilirubin; biliverdin Biliverdin; bilirubin
Answer: B. Biliverdin; bilirubin
Question: What is anaphylaxis?
Answer Choices: Type of allergy mediator compound which causes symptoms of allergy Severe wide-spread type-1 allergic response Type of delayed hypersensitivity response in which a rash develops on the skin Type of antigen that can lead to an allergic response
Answer: B. Severe wide-spread type-1 allergic response
Question: The parasympathetic fibers of the vagus nerve secrete _________, which _________ the heart rate.
Answer Choices: Acetylcholine; increases Norepinephrine; decreases Norepinephrine; increases Acetylcholine; decreases
Answer: D. Acetylcholine; decreases
Question: Mr. Smith is admitted to the cardiac unit with a diagnosis of endocarditis. When he asks the nurse where the infection is located, the nurse replies that the infection is in _________.
Answer Choices: The inner lining of the heart The muscular layer of the heart The outer layer of the heart wall A membranous sac that encloses the heart
Answer: A. The inner lining of the heart
Question: Natural killer (NK) cells are what type of cell?
Answer Choices: Phagocytes Lymphocytes Helper cells Monocytes
Answer: B. Lymphocytes