Search found 2 matches

by malaxo
Sat Sep 24, 2016 7:50 pm
Forum: Human Biology
Topic: Simplifying this segment for me?
Replies: 0
Views: 3551

Simplifying this segment for me?

Hey! I'm having trouble understanding the method of a certain experiment. It's about measuring pressure in mesenteric (intestines) venous system. The substances involved are NOT relevant, just the procedure simplified. It goes as follows: "The vein draining one end of this arcade was carefully ...
by malaxo
Sun Sep 18, 2016 6:11 pm
Forum: Human Biology
Topic: Please help! Vasoconstriction or -dilation?
Replies: 0
Views: 1909

Please help! Vasoconstriction or -dilation?

Hi I can't seem to wrap my head around this. "The coronary arteries express more β2 receptors than α1 receptors, and thus will dilate at sympathetic stimulation". But doesn't the sympathetic signaling result in vasoconstriction? It all seems a bit contradictory to me. Thanks in advance fro...