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Test Bank for Histology and Cell Biology An Introduction to Pathology 3rd Edition by Kierszenbaum STUDY THIS TO GET AN A IN YOUR EXAMS

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1. The type of epithelium found lining small capillaries where it modulates diffusion is A. Simple columnar B. Simple cuboidal C. Simple squamous D. Stratified cuboidal E. Stratified squamous Ans: C. ... Simple squamous 2. The type of epithelium that is associated with distensible organs such as the urinary bladder is A. Pseudostratified columnar B. Simple cuboidal C. Stratified squamous D. Transitional E. None of the above Ans: D. Transitional 3. Epithelia that play a protective function and line the esophagus are A. Pseudostratified columnar B. Simple columnar C. Simple squamous D. Stratified columnar E. Stratified squamous Ans: E. Stratified squamous 4. The surface of the ovaries contains which type of epithelium A. Pseudostratified columnar B. Simple columnar C. Simple cuboidal D. Simple squamous E. Stratified squamous Ans: C. Stratified squamous 5. The epithelial specializations most likely to be found in absorptive epithelia are A. Cilia B. Flagella C. Microtubules D. Microvilli E. Stereocilia Ans: D. Microvilli 6. The apical surface modifications of the cells lining the small intestine contain which of the following proteins? A. Actin B. Claudin C. Elastin D. Myosin E. Occludin Ans: A. Actin 7. Identify the INCORRECT statement A. Basal lamina can be divided into the lamina densa and lamina lucida B. Desmosomes are an effective barrier to the diffusion of substances across an epithelium. C. In pseudostratified epithelia all epithelial cells contact the basement membrane. D. The basal lamina can act as a selective filter between the epithelium and the connective tissue. E. Tight junctions between epithelial cells are an effective barrier to the diffusion of substances across an epithelium. Ans: B. Desmosomes are an effective barrier to the diffusion of substances across an epithelium. 8. The portion of the junctional complex primarily responsible for restricting the passage of molecules between adjacent epithelial cells is/are composed of A. Gap junction B. Hemidesmosomes C. Macula adherens D. Zonula adherens E. Tight junctions Ans: E. Tight junctions 9. Through which part of a junctional complex can ions freely flow between adjacent cells? A. Gap junction B. Hemidesmosomes C. Macula adherens D. Zonula adherens E. Tight junctions Ans: A. Gap junction 10. Through which part of a junctional complex can ions freely flow between adjacent cells? A. Gap junction B. Hemidesmosomes C. Macula adherens D. Zonula adherens E. Tight junctions Ans: A. Gap junction 11. The cell adhesion molecule that binds to both the intracellular cytoskeleton and the extracellular matrix is A. Cadherin B. Fibronectin C. Integrin D. Laminin E. Selectin Ans: C. Integrin 12. Which of the following proteins composes the majority of the basal lamina? A. Collagen B. Fibrin C. Fibronectin D. Integrin E. Laminin Ans: E. Laminin 13. Maintaining actin filament length occurs through a process called treadmilling. Which of the following proteins severs actin filaments and then caps the severed end, preventing further polymerization? A. Cofilin B. Gelsolin C. Phalloidin D. Profilin E. Thymosin Ans: B. Gelsolin 14. Which of the following are important components of axonemes? Show Less [Show More]

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