Hints for Slide CRR 02.  

General hints for all slides.

SAQ Slide Index.

The source for this specimen should be obvious (and confidently so), provided you are familiar with the organ it represents. Note that this specimen has been stained by trichrome, not H&E (follow the links to review stain types). What color is collagen on this specimen? Where does collagen form thick masses?  Where is it thinner? What is the bright orange color which appears here and there on this specimen? This stain offers a special opportunities to study the organ that represented by this specimen. Note the texture (1) that occupies much of this specimen. Within this texture are numerous small "knots", about 200 micrometers in diameter, which are a most distinctive feature for this organ. You should be able to identify these "knots", as well several other details that comprise this region.   Note that the texture appears quite different in the region indicated by (2). How is does this region differ from that indicated by (1)?   Note several prominent tubes, indicated by (3).  What are these?   Note the region indicated by (4), a space surrounded by a wall with an epithelial lining and containing a large mass of tissue. What kind of epithelium lines the space?  What tissue supports this epithelium? How do you explain the mass of tissue, comprising many small tubules, within this space?  (This is a perfectly normal feature; its appearance is somewhat peculiar due to plane of section.) No more hints.

 

Comments and questions: dgking@siu.edu

SIUC / School of Medicine / Anatomy / David King

http://www.siumed.edu/~dking2/crr/SAQcrr02.htm
Last updated:  18 November 2009 / dgk