Practice Test Questions./ Practice Test Questions., Exams of Nursing

Download Practice Test Questions./ Practice Test Questions. and more Exams Nursing in PDF only on Docsity! Practice Test Questions Which of the following is not true regarding how action potentials trigger muscle contraction? A. acetylcholine binds to receptors on the membrane of the muscle fiber B. action potentials propagate into the muscles via T tubules C. calcium is released into the T tubules D. calcium binds to the troponin-tropomysis complex and the sarcomere contracts - ✅ C Which of the following is FALSE regarding fast muscle fibers? A. are white in color B. contain low myoglobin concentration C. Derive most ATP from glycolysis D. Derive most ATP from aerobic respiration - ✅ D Which of the following hormones is mismatched with its function? A. cortisol-long term stress B. ADH-electrolyte balance C. EPO-red blood cell production D. Epinephrine-short term stress E. Leptin-energy reserve - ✅ B Which of the following are some of the major endocrine glands? A. adrenal gland, hyoid gland, kidneys, ovaries B. adrenal medulla, hypothalamus, parathyroid glands, pituitary gland C. kidneys, pancreas, lacrimal glands D. kidneys, thalamus, pituitary gland, thyroid gland - ✅ B What type of response does epinephrine result in? A. sympathetic B. parasympathetic C. homeostasis D. negative feedback - ✅ A What is the correct order of the steps in oogenesis? A. oogonium>polar body and primary oocyte>secondary oocyte and polar body>ootid and polar bodies>mature ovum B. ootid>primary oocyte>secondary oocyte and polar bodies>oogoium and polar bodies>mature ovum C. oogonium>primary oocyte>secondary oocyte and polar bodies>ootid and polar bodies>mature ovum - ✅ C Which structure of the male reproductive system is mismatched with its function? A. scrotum-holds the testes B. epididymis-stores sperm C. vas deferens-expels semen out of body D. testes-produces sperm - ✅ C What cells are not involved in the innate immune system response? A. leukocytes B. lymphocytes C. mast cells D. neutrophils - ✅ B What is not a characteristic of the adaptive immune response? A. Variability B. Diversity C. Specificity D. Memory - ✅ A Which of the following is false regarding the cell-mediated response to eliminate infected cells? A. intracellular pathogens are eliminated via apoptosis B. Macrophages consume fragments of the infected cells C. T cells secrete pore-forming proteins into the infected cell D. Helper T cells bind to infected cells - ✅ D Which of the following type of vaccines contain viruses cultured in other species to render them harmless to humans? A. subunit vaccines B. inactivated viruses C. attenuated viruses D. all of the above - ✅ C Which of the following is not a difference between B cells and T cells? A. B cells bind to the antigen and produce antibodies whereas T cells recognize and kill host cells B. B cell and T cell receptors bind to the epitope on an antigen C. T cells are activated independently whereas B cells are activated by dendritic cells D. none of the above - ✅ C Which of the following is not true about the sliding filament model of muscle contraction? A. the sarcomere is made of thin filaments (actin) and thicker filaments (myosin) B. the thin and thick filaments overlap in the darker bands of the sarcomere C. the contraction of the muscle is dependent on how the sarcomeres shorten D. the thin and thick filaments slide past each other E. the lengths of the thick and thin filaments do not change - ✅ C What binds to troponin-tropomyosin complex, allowing actin to interact with myosin? isolated viral proteins D. inactivated virus - ✅ B What is not involved in the inflammatory response A. chemokines B. macrophages C. mast cells D. hepatocytes - ✅ D Rheumatoid arthritis is an example of.. A. Autoimmune disease B. Immunodeficiency disease C. Viral disease D. Bacterial disease - ✅ A The sarcomere is made up of thin filament proteins, called ________. A. ATRT B. calcium C. actin D. acetylcholine E. myosin - ✅ C Which of these is an endocrine gland? A. pituitary B. thyroid C. adrenal D. all of the above - ✅ D _________muscles increase the angle at a joint. A. flexor B. extensor C. ball-and-socket D. rotation - ✅ B Acetylcholine stimulates contraction of this muscle in stomach and intestine. A. skeletal muscle B. smooth muscle C. cardiac muscle D. None of the above - ✅ B What are the type of chemical signals that act on the same cell that secretes them? A. endocrine B. autocrine C. paracrine - ✅ B Gametogenesis in mammals occurs by ___________ A. meiosis B. mitosis C. hermaphrodite - ✅ A ADH is released from this gland A. adrenal B. pituitary C. thyroid - ✅ B Most mammals are ______________ in nature Selected Answer: A. viviparous B. oviparous C. ovoviviparous D. all of the above - ✅ A True or False Leptin is a hormone - ✅ True True or False Mammals have an XX/XY system of sex determination - ✅ True