A&P 2 Straighterline Final Exam

1. A decrease in blood oxygen stimulates which of the following? - a. an increase in erythropoietin formation, which increases red blood cell production 2. Antibodies are produced by which type of white blood cell? - lymphocytes 3. Which statement about the structure of the heart is accurate? - b. The superior and inferior venae cavae enter the right atrium, and the pulmonary veins enter the left atrium. 4. Which part of the cardiovascular system brings blood into the right atrium of the heart? - c. superior vena cava 5. Deoxygenated blood flows through the pulmonary structures in what order? - d. pulmonary semilunar valve ⇒ pulmonary trunk ⇒ pulmonary arteries 6. Oxygenated blood flows through the heart's structures in what order? - b. bicuspid valve ⇒ left ventricle ⇒ aortic semilunar valve 7. In the human body, veins are categorized according to - size 8. Which sequence correctly shows the direction of blood flow in the capillary network? - 9. When do congenital heart diseases occur? - b. at birth 10. How does arteriosclerosis affect the circulatory system? - c. It increases resistance to blood flow. 11. Lymph consists of water and solutes derived from - b. cell tissue and plasma. 12. Which of these mechanisms is responsible for moving lymph through lymphatic vessels? - b. contraction of skeletal muscles 13. Which statement about diffuse lymphatic tissue is accurate? - a. It has a clear boundary. b. It contains macrophages. c. It is located superficial to mucous membranes. d. It is organized into compact, somewhat spherical structures. 14. Which is a function of the lymphatic system? - b. regulation of fluid balance 15. What would happen if excess lymph remained in the interstitial fluid instead of entering the lymphatic capillaries? - d. Edema would result, causing tissue damage and possibly death. 16. Which cell type is part of the innate immune system? - a. natural killer cell b. memory B cell c. plasma cell d. helper T cell 17. In the body's defense system, specificity and memory are key characteristics of - b. adaptive immunity.