00:01
Okay, so answering these questions, which, i guess is question 8, which valve controls the flow of blood between the right atrium and the right ventricle? and let's go over here to this figure.
00:24
So, here to identify here's the right ventricle.
00:30
This right here is the right atrium.
00:38
What we're looking for is this valve right here, the tricuspid valve.
00:52
The tricuspid valve.
00:56
Question nine, the heart cycles through periods of contracting and relaxing.
01:02
What term is used for the contraction? well, it's actually going to be contracting and relaxing.
01:10
For these two, right here, a systole is contracting.
01:19
That's the cardiac contraction.
01:23
Diasol is the relaxing...