生理试题1（Physiological questions 1）.docVIP

生理试题1（Physiological questions 1） First semester of the 2005~2006 academic year of Binzhou Medical University First, individual choice questions (1 points per game, 50 points) 1. when most excitable cells are stimulated, the common expression is that A. nerve impulse, B. contraction, C. secretion, D. action potential 2. when the potassium concentration in the extracellular fluid decreased, the resting potential level would be A increases, B decreases, C increases first and then decreases, D decreases first and then increases 3. the process of iodine accumulation in thyroid epithelial cells belongs to the thyroid gland A, facilitation, diffusion, B, primary active transport, C, secondary active transport, D, and endocytosis 4. hematocrit is defined as A. the ratio of blood cell to plasma volume; B. volume ratio of plasma in the blood C. the percentage of blood cells in the blood D. percentage of the volume of blood cells in the blood 5. the reason why the myocardium does not develop tetanic contraction is that A. the sarcoplasmic reticulum of myocardium is not developed, the amount of calcium storage is low, and B. is used to control the neurotransmitter depletion in the cardiac muscle The effective refractory period of C. myocardium is longer than D., and the myocardium is prone to fatigue 6. about fibrinolysis is wrong A. is divided into two stages: plasminogen activation and fibrinolysis The plasminogen activator in B. is mainly produced by vascular endothelial cells and renal tubules and collecting duct epithelial cells C. fibrin is converted into fibrinogen by plasmin The fibrinolytic process of D. can make the thrombus liquefy and the blood vessel recanalization 7., the urine flows through the urethra to stimulate receptors, so that the detrusor contraction increases until the urine is discharged A, self regulating B, negative feedback regulation of C, positive feedback regulation of D, humoral regulation The 8. end plate potential is characterized by A, with al