Histology (ANA 222) CA 2017 PDF

HISTOLOGY (ANA 222) CA 2017 ÀNA 222: Systemic Histology I Chongafilawos [email protected] Chong PQ BINGHAN UNVERSITY COLLEGE OF MEDICINE...

HISTOLOGY (ANA 222) CA 2017 ÀNA 222: Systemic Histology I Chongafilawos [email protected] Chong PQ BINGHAN UNVERSITY COLLEGE OF MEDICINE DEPARTMENT OF ANATOMY 200 Leve MBBS/B.sc (Hons) Anatomy and Physiology 2016/2017 session Continuous Assessment I ÀNA 222: Systemic Histology I Date: Wednesday; July 19th, 2017 Time Allowed: 35 mins Matric no _____________________ Department ____________________ Circle the correct option 1. Each of the following statements about the Liver is correct EXCEPT a) The hepatocytes are arranged in a radial pattern round the central vein b) The canaliculi drain into the central vein c) The sinusoids contain fenestrated endothelial d) The hepatocytes are separated from endothelia by a subendothelial space 2. Which of the following statements concerning the small intestine is NOT true? a) Villi in the jejunum are longer than elsewhere in the small intestine b) The ileum does not contain Brunner's gland c) Brunner's gland is available in the jejunum d) Peyer's patches are most prominent in the ileum 3. Which one of the following statements concerning Hepatocytes is NOT true? a) Bile canaliculi lie between two hepatocytes b) They are polygons with up to six or more surfaces c) The cytoplasm of cells is rich in basophilic bodles d) Kupffer cells are easily demonstrated in the central vein 4. Each of the following statements concerning the pancreas is true EXCEPT a) The exocrine portion of the pancreas is arranged as secretory acinar b) The pancreatic enzymes are release in their active forms into the intestine c) Alpha cells in the pancreas secrete glucagon d) The islet cells are irregular polygons with spherical nuclei 5. Which one of the following is NOT true about the salivary gland a) The serous secretions are rich in glycoproteins of mucin and carbohydrates b) The mixed glands contain serous demilunes c) Myoepithelial cells are found in the basal lamina of the cells d) The ducts are lined by cuboidal epithelial cells 1 Chong PQ 6. Which of the following about the tongue is TRUE a) Filiform papillae contain no taste buds b) The circumvallate papillae are found all over the tongue c) Typically, the surface of the tongue is covered in cuboidal epithelium d) Lymphoid nodules are not found on the tongue 7. Each at the following statements about the stomach is true EXCEPT a) Mucous neck cells are abundant in the fundic part of gastric pits b) Parietal cells Secrete hydrochloric acid c) There are no gastric pits in the pylorus d) Chief cells secrete pepsinogen 8. The cortex of the lymph node contains numerous lymphocyte-aggregations called. a) lymphatic nodules. b) Paracortex c) Medullary cords d) pulp arteries 9. Which of the following is not a part of the medulla of a lymph node? a) Medullary cords b) Medullary sinuses c) Macrophages d) Erythrocyte 10. Which of these is NOT a major type of thymic epithelial cells in the cortex of the thymus? a) squamous thymic epithelial cells b) stellate thymic epithelial cells c) squamous cortical thymic epithelial cells d) cuboidal cortical thymic epithelial cells 11. Concerning the histology of the thymus which one of the following is correct? a) The thymus does not have a vascularized connective tissue capsule b) Each lobule of the thymus has an outer darkly basophilic medulla and a more lightly stained cortex c) The thymic cortex contains an extensive population of T lymphocytes d) The thymic cortex contains an extensive population of T lymphoblasts 12. Which of these is NOT part of the histology of the spleen? a) The capsule b) Splenic pulp c) Medulla d) White pulp 2 Chong PQ 13. Tonsillar crypts of the tonsil are lined by a) stratified squamous nonkeratinized epithelium b) stratified squamous keratinized epithelium c) stratified cuboidal nonkeratinized epithelium d) simple squamous epithelium 14. Concerning the histology of the spleen which one of the following is correct? a) The spleen is characterized by very few aggregations of lymphatic nodules b) Lymphatic nodules constitute the red pulp of the organ. c) The lymphatic nodules do not contain germinal centers. d) Lymphatic Nodules constitute the white pulp of the organ. WRITE T OR F Concerning the histology of Capillaries 15. Fenestrated capillaries are found in some issues where there is extensive molecular exchange with the blood 16. Pericytes are rarely found in fenestrated capillaries 17. Continuous capillary is found in small intestine, endocrine glands and the kidney 18. The flattened endothelial cell nuclei bulge into the capillary lumen Concerning clinical correlates in the histology of the blood vessels 19. Elastic and muscular arteries develop the common disease called arthrosclerosis 20. Lipid material infiltrates the tunica intima and accumulates in macrophages 21. Plaque thickens the tunica intima 22. The intima surface is also roughened 23. Tunica media are replaced by non-contractile and non-elastic collagen making an aneurysm Concerning the histology of blood vessel and the heart 24. The inner layer of endothelium, is a single layer of cuboidal cells 25. The tunica media is mainly muscle and it is myocardium in heart 26. The outer layer is mainly supporting tissue of serous membrane 27. The tunica intima is called endocardium in heart tissue 28. The tunica media is the parietal pericardium in heart. 29. Blood vessels are supply by small arteries called vasa vasorum 3 Chong PQ Concerning the histology of the Trachea 30. Ciliated pseudostratified squamous epithelium 31. Lamina propria is not develop 32. Presence of seromucous gland 33. Goblet, basal and neuroendocrine cells are present 34. Presence of hyaline cartilage plates Concerning the histology of the Alveoli 35. Ciliated squamous epithelium 36. Presences of goblet cells 37. Pneumocytes and macrophages 38. Well-developed lamina propria 39. Is a typical of “respiratory epithelium" MATCH EACH OF THE CHARACTERISTICS WITH THE APPROPRIATE ENTEROENDOCRINE CELL TYPE a) Goblet cells b) Enterochromaffin cells c) I cell d) S cells e) None of the above 40. Secretes serotonin and are present in the stomach and small intestine _________________ 41. Secrete gastric inhibitory peptide and are present in the stomach and small intestine ____________ 42. Secretes mucous substances that are protective and abundant on the surface of the GIT __________ 43. Secretes pepsinogen and are present only in the fundus ________________ MATCH EACH DESCRIPTION BELOW WITH THE APPROPRIATE GASTROINTESTINAL TRACT STRUCTURE a) Brunner's gland b) Appendices epiploicae c) Columns of Morgagni d) Taenia coli e) Plicae circulars 44. Present throughout most of the small intestine ______________________ 4 Chong PQ 45. Longitudinal folds found in the rectal wall _______________________ 46. Submucosal structures homologues to rugae _____________________ 47. Mucus and bicarbonates secreting glands found only in the submucosa of the duodenum _________ 48. Longitudinal Band of smooth muscles in the muscularis externa of the colon ___________________ PROVIDE THE CORRECT ANSWER FOR EACH OF THE LETTERED PARTS OF THE STRUCTURE IN THE MICROGRAPH BELOW 49. A ______________________________ 50. B ______________________________ 51. C ______________________________ 52. D ______________________________ 53. The micrograph below is the______________________________________ part of the GIT Fill in the Blank spaces Cells of the lymph nodes are arranged in three major regions which are (54) _______________, (55) _______________ and (56) _____________ Palatine tonsil is covered by a protective stratified called (57) _______________ In thymic medulla are aggregates of TECs, sometimes concentrically arranged is called (58) ___________ Tertiary bronchioles give rise to (59) _______________ that is lined with (60) _______________ epithelium 5