in the meantime, im procrastinating...but that's going to stop after I type this. I need to run through all my Anatomy notes before 1:10pm EST. Then, that's it. Maybe a glance on the train tonight, but what will be will be. And remember, you only have 1 brachiocephalic artery, but you have 2 brachiocephalic veins. Dont get confused between the basilar artery and the basilic vein...or even the celiac artery and the cephalic vein. Anastomoses is a joining of 2 or more arteries or veins in a given area. Renin from the kidneys activates angiotensinogen, normally an unreactive plasma protein manufactured in the liver. Through a neat little chemical cascade, angiotensinogen becomes angiotensin 1 and 2 and reacts with ACE to increase your blood pressure. And finally, Arterioles have an internal and medial tunica, but not an external. Venules have an internal and external, but no medial tunica. yes, indeed. there is so much info crammed in my short term/medium term memory that it's hard not to just laugh and continue to surf the web at lunch.
alas, I am not that smart.
over and out.