Histology Exam Questions and Revised Answers

Histology Exam Questions and Revised Answers 1. Each of the following statements concerning the mesothelium is true, EXCEPT: A - is derived from mesoderm; B is simple; C its cells are squamous; D- not each of its cells reaches the lumen; E lines the peritoneal cavity - Answer-E-lines the peritoneal cavity 2. Each of the following statements concerning the pseudostratified epithelium is true, EXCEPT: A - all its cells rest on the basement membrane; B - all its cells reach the apical surface; C-contains goblet cells; D - is ciliated; E-contains short (basal) cells - Answer-B all its cells reach the apical surface 3. Each of the following statements concerning the basement membrane is true, EXCEPT: A - separates epithelium from the underlying connective tissue; B - is absent in some epithelia; C contains type IV collagen and laminin; D - serves for epithelial cell attachment; E takes part in nutrition of epithelium - Answer-B- is absent in some epithelia 4. The cardinal features of the epithelia are as follows, EXCEPT A- form the stroma of organs; B look like sheets, C are derived from all germ layers; D- regenerate intensively; E-their cells are polarized - Answer-A- form the stroma of organs 5. The epithelia are simple if: A - their cells are polarized; B their cells form sheets; C all their cells rest on the basement membrane; D- not all their cells reach the apical surface; E their cells are continuously sloughed - Answer-C-all their cells rest on the basement membrane; 6. The epithelia are stratified if: A - their cells are continuously sloughed; B their cells form sheets; C - their cells are polarized; D - all their cells can divide; E not all their cells are in contact with the basement membrane statements - Answer-E-not all their cells are in contact with the basement membrane 7. Each of the following statements concerning the stratified squamous nonkeratinized epithelium is true, EXCEPT: A - contains the spinulate cell layer; B-contains the basal layer with stem cells; C-contains the superficial layer of flat anucleate cells; D -its superficial cells are continuously sloughed; E - lines the oral cavity, the esophagus, the rectum, and the vagina - Answer-C-contains the superficial layer of flat anucleate cells;