This preview shows page 1. Sign up to view the full content.
Unformatted text preview: e is above, baso blood vessel
also contain antibodies that help fight infections. but because things accumulate, mucus have to
is below. the surface of epithelium cells lining the lumen would
be get rid of by cilia up to the mouth where it can be swallow or spit out. so mucus cannot be
be covered in mucus, above it would be water.
too watery or too thick (can't be move).
-sodium-potassium pump (2 potassium in, 3 potassium out for
-in the intestine, the mucus lining the epithelial is important. one is to protect the epithelial cell
every ATP hydrolyze) engine whole NaCl and H2O transport
from abrasion by intesitinal content. also mucus protect epi from digestive enzymes. also
-the potassium that pumps in diffuse out abundant potassium
protect from acidic/alkaline condition. also fight infection (have antibodies within mucus). again
ion channels in the basolateral membrane (short circuit itself).
mucus can't be too thick (if it's too thick, it diminish absorptive function of intestine). if mucus is
this don't have much consequence, but the point is to maintain
too thin (cause diarrhea where have excess loss of fluid out the intestine).
a low internal sodium ion concentration. this electrochemical
IMPORTANT IN LUNG (to maintain proper state of
gradient of sodium power the secondary active transport on
hydration of mucus). CFTR channel is discovered in the
left, which is the sodium 2 chloride potassium transporter.
research of disease cystic fibrosis.
which move for every cycle, 1 sodium ion, 2 chloride, 1
-genetic disease in which number of mutation that affect
potassium ion in. again potassium ion pumps in just diffuse
function of CFTR (3 nucleotide deletion that result in
out through open potassium ion channel. the sodium ion is
misfolding and ear...
View Full Document
This document was uploaded on 03/09/2014 for the course EXSC 301 at USC.
- Spring '09