考试日期月日开卷闭卷√答卷时间小时.docVIP

考试日期：2013年1月4日 开卷□ 闭卷√ 答卷时间：2小时 题 号 一 二 三 四 五 六 七 八 合计 满 分 35 20 25 20 100 得 分 阅 卷 人 审 核 人 得 分 PartⅠ. Choose the ONE best answer, then fill the corresponding letter in the blank. (35 points, 1 point for each one ) 题号 1 2 3 4 5 6 7 8 9 10 选项 题号 11 12 13 14 15 16 17 18 19 20 选项 题号 21 22 23 24 25 26 27 28 29 30 选项 题号 31 32 33 34 35 选项 ( )1. Which one of the following is a physiological process with negative feedback? Blood coagulation Micturition reflex Sino-aortic baroreceptor reflex Na+ influx during action potential Process of parturition ( ) 2. The acceleration of heart rate caused by catecholamine（儿茶酚胺） hormones released from adrenal gland after doing exercise, it is Neural regulation Humoral regulation Autoregulation Neural-humoral regulation None of the above ( ) 3. During aerobic exercise, blood flow remains relatively constant within A. The skin B. The heart C. The brain D. The skeletal muscles E. The kidneys ( ) 4. The membrane potential will depolarize by the greatest amount if the membrane permeability increases for A. Potassium B. Sodium and potassium C. Chloride D. Potassium and chloride E. Sodium ( ) 5. Which of the following words or phrases is most closely associated with an end-plate potential at the neuromuscular junction A. “All-or-none response” B. Depolarization C. Hyperpolarization D. Action potential E. Electrically excitable gates ( ) 6. The sodium gradient across the nerve cell membrane is A. A result of the Donnan equilibrium B. Significantly changed during an action potential C. Used as a source of energy for the transport of other ions D. An important determinant of the resting membrane potential E. Maintained by a Na/Ca exchanger ( ) 7. Which of the followings can serve as second messengers? A. cAMP B. Ca2+ C. IP3 D. NO (nitric oxide) E. all of the above ( ) 8. The initial factor for extrinsic pathway of blood clotting is factor