Edited, memorised or added to reading queue

on 24-Nov-2016 (Thu)

Do you want BuboFlash to help you learning these things? Click here to log in or create user.

Flashcard 1421631950092

Question
[...] regulates water excretion by increasing the water permeability of the collecting duct
Answer
Vasopressin

statusnot learnedmeasured difficulty37% [default]last interval [days]               
repetition number in this series0memorised on               scheduled repetition               
scheduled repetition interval               last repetition or drill

Parent (intermediate) annotation

Open it
Vasopressin regulates water excretion by increasing the water permeability of the collecting duct

Original toplevel document

Vasopressin receptor - Wikipedia
luminal membrane of the collecting duct limit the antidiuretic action of vasopressin. Additionally, vasopressin selectively contracts efferent arterioles probably through the V 1 R, but not the afferent arteriole. [1] V 2 receptor[edit] <span>V 2 receptor (V 2 R) differs from V 1 R primarily in the number of sites susceptible to N-linked glycosylation; the V 1 R has sites at both the amino-terminus and at the extracellular loop, whereas the V 2 R has a single site at the extracellular amino-terminus. [1] The well known antidiuretic effect of vasopressin occurs via activation of V 2 R. [1] Vasopressin regulates water excretion from the kidney by increasing the osmotic water permeability of the renal collecting duct – an effect that is explained by coupling of the V 2 R with the G s signaling pathway, which activates cAMP. Interestingly, the V 2 R continues to activate G s after being internalized by β-arrestin rather than being desensitized. This internalized G s signaling by V 2 R is explained by the receptors ability to form "mega-complexes" consisting of a single V 2 R, β-arrestin, and heterotrimeric G s . [3] The increased intracellular cAMP in the kidney in turn triggers fusion of aquaporin-2-bearing vesicles with the apical plasma membrane of the collecting duct principal cells, increasing water reabsorption. [1] V 3 receptor[edit] The human V 3 receptor (V 3 R, previously known as V 1B R) is a G-protein-coupled pituitary receptor that, because of its scarcity, was only recently characteri







#prealgebra

Finding and understanding patterns gives us great power. With patterns we can learn to predict the future, discover new things and better understand the world around us.

And playing with patterns is fun.

statusnot read reprioritisations
last reprioritisation on suggested re-reading day
started reading on finished reading on