Formed elements of blood12/21/2023 Under these conditions, they tend to look larger than they really are. They're held down to the glass of the slide by surface tension, stretched and flattened out like a road-killed possum on Interstate 81. Unfortunately, as useful as these smears are, you could hardly find a less congenial environment for the somewhat delicate formed elements. Most people develop a mental image of what formed elements of blood "ought" to look like based solely on smears made this way and specifically, based on smears stained with Wright's solution. It's sold commercially under various names, the most familiar being "Diff-Quick." The slide is dipped into the first stain jar, rinsed, and then dipped into the second. Wright's is anĪlcohol based mixture of rosin and methylene blue whose staining reactions are similar (but not identical to) the common H&E stain used on tissue sections. A blood smear is made by putting a drop on a slide and spreading it into a thin film, which is fixed and stained simultaneously. Wright, 1871-1928, an American pathologist). In most of this exercise you'll be using smear preparations made with Wright's stain (named after itsĭeveloper, James H. Many cases the same cells found in loose CT's, and this is yet another reasonįor putting blood in this category of basic tissues. The true cells (as distinct from non-cells) found in circulating blood are in Laboratory exercise we will consider only the cellular and cell-derived components, i.e., the "formed elements" Viscosity aqueous solution of proteins and some other constituents. The amorphous matrix is blood plasma, a low The fibrous component is latent in normal blood, and is normally expressed only in Has all of the three components which characterize these: fibers, an amorphous SLIDES USED IN THIS EXERCISE: VM11, VM12, VM13, H9020, 1004, VM05, 98, VM01īlood is classically considered to be one of the connective tissues, since it ![]() The tree of Liberty must be refreshed from time to time with the blood of Exercise 6: Formed Elements of Blood Formed Elements of Blood
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