And this is exactly how the blood actually flows through our arteries. Now, recall that smooth muscle is innervated by our autonomic nervous system. So it's the autonomic nervous system that actually controls the dilation and the contraction of our arteries. So the autonomic nervous system can basically control the blood pressure and the blood flow through our arteries. And that's important in our body. Now, finally, it also has a high resistance to blood flow because as soon as that blood enters our artery, it wants to recoil back into place.