system
Given the following post, respond as if you're commenting on Reddit:
human
Does the heart get microtears like any other muscle? And if it doesn't, why can it keep going non stop unlike say your bicep?
gpt
There are three types of muscle: striated/skeletal muscle (as in what you think about when you think muscle, the things that move/stabilize your body and you can chose to use then), smooth (in blood vessels, the gut, all your ‘automatic’ bits that you personally have no control over), and cardiac (heart muscle). Suffice to say although they have the same basic property of being able to contract and relax they are different on a number of levels. The muscle making up the heart being so specialized and different that it is it’s own subtype. It starts getting more complex from here on in but in short the different/additional chemical pathways in heart muscle and the special way the electrical impulses travel around the heart make the heart the unique organ that it is.