mellicious: pink manicure (Firefly - brain)
[personal profile] mellicious
edema
abnormal collection of fluid, usually causing swelling


I'm sure a lot of people know this word, but I'm putting it in here anyway because it lets me discuss the mechanisms of edema a little bit, and I thought it was interesting. I like this definition (from the anatomy book) better than the one from the medical terminology book, which was worded the other way around - something on the order of "swelling, usually caused by abnormal collection of fluid in the tissues". The excess fluid arises on a microscopic level, in the interstitium between the capillaries and the cells. Normally the capillaries take out the same volume of fluid that they bring in, keeping things in balance, but when things get out of whack the fluid builds up in the interstitial space and eventually becomes noticeable as swelling. One example the book gave was hypoalbuminemia - a lack of albumin, which is a protein, in the blood. The presence of the proteins in the capillaries - in some mysterious way that I don't entirely understand - draws water back in with them, so a lack of proteins means more water stays in the interstitium.

OK, the page is sort of swimming so I think that means it's my bedtime. Hope this makes a reasonable amount of sense!
From:
Anonymous( )Anonymous This account has disabled anonymous posting.
OpenID( )OpenID You can comment on this post while signed in with an account from many other sites, once you have confirmed your email address. Sign in using OpenID.
User
Account name:
Password:
If you don't have an account you can create one now.
Subject:
HTML doesn't work in the subject.

Message:

 
Notice: This account is set to log the IP addresses of everyone who comments.
Links will be displayed as unclickable URLs to help prevent spam.

Profile

mellicious: pink manicure (Default)
mellicious

April 2019

S M T W T F S
 123456
78910111213
14151617181920
21222324252627
282930    

Most Popular Tags

Style Credit

Expand Cut Tags

No cut tags
Page generated Apr. 19th, 2019 08:21 pm
Powered by Dreamwidth Studios