00:02
When something is involuntary, that means that we do not have control over it.
00:08
So involuntary means it's happening by itself.
00:11
We have no control.
00:16
When something's voluntary, the opposite, that means that we have control and we're making that happen.
00:21
So when it comes to the muscles, we know that some are going to be voluntary, some are involuntary.
00:28
First up, let's look at the cardiac muscle.
00:31
Cardiac muscle, also known as our heart, is something that we have.
00:36
Have no control over.
00:39
We cannot tell it to beat.
00:41
We can't tell it how fast to beat.
00:43
It automatically happens...