00:01
We're following the path of a human red blood cell, but we're starting in the left atrium.
00:05
And we have a list of structures to follow.
00:12
So, starting here, and we want to get back here.
00:16
So let's start.
00:17
From the left atrium, we need to go to the left ventricle.
00:20
But we need to go through a valve to get there, and that's an atrioventricular valve.
00:24
So av valve is first, and that will lead us into the left ventricle.
00:33
The left ventricle has a very thick wall capable of producing.
00:36
Producing pretty good blood pressure because it's next going to go to the aorta, of course, via the aortic valve.
00:44
So there's a semi -luna valve next.
00:47
The av valves are between atrial and ventricles, the semi -luna between the ventricles and the arteries they feed into.
00:56
So now we're in the aorta...