Review Question Set 2 for BIO 423/523 Histology, Spring, 2007
1. What is a junctional complex? What are the three basic types of junctional
complexes, and how do they differ from each other?
2. What are the main categories of cytoadherence molecules found in the
human body?
3. How are these cytoadherence molecules different from each other?
4. Why is pseudostratified epithelium considered to be a "special" epithelium?
5. Why is transitional epithelium considered to be a "special" epithelium?
6. What are some of the general functions of epithelial tissues?
7. What are some of the characteristics of epithelia that are used to categorize
these tissues?
8. What is endothelium?
9. What is mesothelium?
10. What are the differences between a stratified squamous keratinized epithelium
and a stratified squamous non-keratinized epithelium?
11. What is apoptosis? What are the ways in which apoptosis in cells is known to
be effected? How does the bax pathway differ from the Fas pathway?
12. What is a gland?
13. What are some of the ways in which glands are classified?
14. What are the differences and similarities that exist between exocrine and
endocrine glands?
15. What are the differences that exist between merocrine, apocrine, and holocrine
secretion?
16. What is a secretory acinus? What is a secretory alveolus?
17. How is a mucous-secreting gland distinguished from a serous-secreting glandular
unit?
18. What are some of the functions of connective tissues?
19. What are the main characteristics of connective tissue?
20. What is the composition of intercellular (=extracellular) matrix?
21. What are some examples of fibrous proteins found in the matrix of
connective tissue?
22. What is the sequence of events in the general process by which collagen is
produced by collagen-secreting cells?
23. What are proteoglycans and glycosaminoglycans? What is the composition
and structure of these substances?
24. What are the subcategories of connective tissue proper?
25. What are the differences between the subcategories of connective tissue proper?
26. What are the cells that are typically found as resident cells in loose connective
tissue?
27. What is the implied difference between a fibroblast and a fibrocyte?
28. What is the function of a mast cell? What is contained within the cytoplasmic
granules found in a mast cell? What are the functions of these substances?
29. What events result in degranulation of a mast cell?
30. What is arachidonic acid? How is arachidonic acid produced by a cell such as a
mast cell?
31. What are eicosanoids? What are the functions of the three main classes of
eicosanoids? What enzymes play roles in eicosanoid production?
32. What are macrophages? What are the main functions of a macrophage?
33. What are some of the names used for members of the macrophage class of cells
throughout the human body?
34. What is an antigen-presenting cell? What is the role of an antigen-presenting cell
in cell-mediated immunity?
35. What substance is identified by the acronym "NOS"? What is the connection
between NOS and macrophages?