西安交通大学考试题

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西 安 交 通 大 学 考 试 题
C. held in synaptic vesicles D. constantly replenished from lysosomes E. may be inhibitory or excitatory 16. Retina consists of all of the following cells EXCEPT A. pigment cells B. cones and rods C. bipolar cells D. ganglion cells E. hair cells 17. Refractive media of eyes do NOT include A. cornea B. retina C. lens D. aqueous humor E. vitreous body 18. The tactile corpuscles are located in the A. epidermis B. papillary layer of the dermis C. reticular layer of the dermis D. hypodermis E. none of the above 19. The cells that can capture and present antigens in epidermis are A. corny cells B. spinous cells C. granular cells D. Langerhans cells E. melanocytes 20. Blood sinusoids A. are found in the kidney and lung B. are absent in the red bone marrow C. have smooth muscle cells in their wall D. have discontinuous endothelial linings E. always have complete basement membrane 21. Which is NOT the feature of endothelial cells in the artery and vein? A. Large numbers of plasmalemmal vesicles in the cytoplasm B. Have W-P bodies (specific endothelial granules) C. Have microfilaments D. Produce bioactive substances E. Many pores in the endothelial cell 22. All of the following elements constitute the immune system EXCEPT A. lymphoid tissues B. lymphoid organs C. lymphocytes D. macrophages E. endothelial cells 23. The white pulp of the spleen consists of A. periarterial lymphatic sheath and splenic corpuscles B. splenic corpuscles and splenic cords C. splenic cords and splenic sinusoids D. splenic cords and periarterial lymphatic sheath
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E. marginal zones and splenic cords 24. Which of the following is NOT true of the cells of zona fasciculata? A. Arranged in cords with each cord usually containing two rows of cells B. Large cells with pale stained, foamy cytoplasm C. Abundant SER under electron microscope D. Mitochondria with lamellar cristae E. Stimulated by ACTH 25. The secretion of the parathyroid glands A. is called calcitonin B. is called thyroxine C. lowers level of serum calcium D. raise level of serum calcium E. does not affect level of serum calcium 26. The acidophil cells of the anterior pituitary include the A. somatotrophs and thyrotrophs B. mammotrophs and somatotrophs C. thyrotrophs and gonadotrophs D. gonadotrophs and corticotrophs E. corticotrophs and thyrotrophs 27. The layer that is most important for the function of the digestive tract is A. mucosa B. lamina propria C. submucosa D. muscularis E. adventitia 28. Which of the following is NOT a characteristic of acid producing cells of the stomach? A. Also called the parietal or oxyntic cells B. Numerous in the neck and body of the gastric glands C. Relatively large cells D. Cytoplasm is basophilic E. One or two nuclei in the center 29. The formation of secretory IgA is NOT involved in which of the following cells? A. Lymphocytes B. M cells ( microfold cells) C. Plasma cells D. Endocrine cells E. Absorptive cells 30. Which of the following is common to the liver and pancreas? A. Cells are arranged in plates B. Cells stain uniformly basophilic C. Endocrine and exocrine cells are the same D. Endocrine cells are clustered in groups E. Exocrine ducts are lined with simple epithelium 31. Which of the following statements is true of the bile canaliculus? A. It is formed by invagination of cell membranes of adjacent hepatocytes B. it is lined by Kupffer cells C. It is lined by cuboidal cells D. It is lined by simple squamous epithelium 32. The main characteristic of the type II alveolar cells in EM is A. numerous surface microvilli B. abundant mitochondria C. a number of lysosomes D. many osmiophilic lamellar bodies
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Which of the following is NOT true of bone matrix? A. Stains acidophilic in H & E sections B. Contains inorganic salts C. Contains bone collagen fibers D. Has a higher sulfates than that of cartilage E. Arranges regularly in lamellae 8. Which of the following statements is NOT true of neutrophils? A. Account for 50%-70% of the total circulating leukocytes B. They are agranulocytes C. They have a polymorphous nucleus with 2～5 lobes D. They contain specific granules and azurophilic granules E. Neutrophilic granules contain bactericidal phagocytins 9. The earliest hematopoietic cells are derived from the A. yolk sac B. amniotic cavity C. liver D. spleen E. bore marrow 10. The wave of contraction is spread from cell to cell in cardiac muscle by A. motor endplates B. intercalated discs C. muscle spindles D. dense bodies E. none of above 11. When contracting the myosin heads bind to A. Ca2+ B. ATP C. troponin D. actin E. tropomyosin 12. Which of the following statements about the myofibril is FALSE? A. The basic structure related to contraction of three types of muscle tissue B. Made up of thick and thin filaments C. Showing A and I bands, H band, Z and M lines D. Surrounded by T and L tubules E. The shortest unit in it is called sarcomere 13. The pre-synaptic element of a synapse can be recognized in electron micrographs by the presence of A. thickened plasmalemma B. microtubules and microfilaments C. abundant RER D. mitochondria E. membrane-bound vesicles 14. Nodes of Ranvier are A. seen in all types of nerve fibers B. only seen in the myelinated nerve fibers of the PNS C. only seen in the unmyelinated nerve fibers of the CNS D. sites where myelin sheath and neurolemma are interrupted E. the reason for slower conduction of impulses 15. Which of the descriptions of neurotransmitters is NOT true？ A. chemicals synthesized by neurons B. released into the synaptic cleft