Crenation occurs because in a hypertonic environment (that is, the cell has less solutes than the extracellular fluid does) osmosis (the diffusion of water) causes a net movement of the water outside of the cell, causing the cytoplasm to decrease in size.
The effects of crenation are especially visible in red blood cells, as they become distorted in shape rather than the usual disc-like shape with the dimple that the usual blood cell has.
Crenation (type I echinocytosis) was characterized separately as a percentage of RBCs examined.
Crenation of RBCs caused the greatest discordance between the visual assessment and the digital imaging scores.
The digital imaging system was sensitive to the cumulative effects of shape changes, such as crenation that may occur as an artifact, and may not specifically detect diagnostically significant RBC shape changes such as acanthocytes or schistocytes.
Red cell crenation(Site not responding. Last check: 2007-11-02)
Crenated red cells have changed from a disc shape to spheres covered with short, sharply pointed projections.
Slow drying of the smear and aging of blood in the tube are the most common causes of artifactual crenation.
Echinocytes in the good-for- examination area of a well-made smear of fresh blood are not artifacts of preparation but an abnormality of red cell shape that is non-specific with regard to cause.
It was not long before the Enlar discovered that, in one of the neighboring systems of their home star, existed a fruitful world not all that dissimilar from their own that was hospitable to life.
The Crenations were a barbaric and fragmented civilization of many different tribal factions that were constantly at war with one another.
Within the span of just a few dozen generations, the Crenations morphed into the Mandralor: possessing the prophet’s appearance, as all their offspring were born with his idiosyncratic pair of extra limbs and prodigious intellect
you can delete all of the existing crenation related messages that are here and write your own.
Some are crenation blogs; others resemble newsletters or columns.
Although most early crenation weblogs were manually updated, tools to automate the maintenance of such sites made them accessible to a much larger population, and the use of some sort of browser-based software is now a typical aspect of crenation "blogging".
crenation.wordblogs.net (744 words)
Crenation(Site not responding. Last check: 2007-11-02)
The cells with scalloped edges seen on this slit crenatedcells or echinocytes.
The main cause of crenE trauma during preparation of the blood film.
Crenatedcells ar in normal as well as abnormal blood and more often in old bloc fresh, in thick films more than thin, and after exposure to hypotonic solutions and lytic agents.
yourDictionary.com(Site not responding. Last check: 2007-11-02)
Usage 1: "Crenately" is the adverb; "crenation" is the noun.
"Crenation" is used in medicine to describe the shrunken appearance of red blood cells in a hypertonic solution.
Suggested usage: From a metaphorical pen with purple ink, one might see a sentence like "Denis stared at Yasmin, his forehead crenate with anger and concern." In a more homely fashion, we could say "The frog's brow was crenate with warts." Today's word is a good one to describe a knobby or serrate(d) appearance.
