Regeneration of Muscle Tissue (Nursing)

00:00 So now we will conclude or wrap up this lecture by discussing the way that we regenerate our muscle tissue.

00:09 So the interesting thing about skeletal muscle fibers is that they do not undergo mitosis.

00:17 Instead, skeletal muscle fibers undergo hypertrophy.

00:23 So the same muscle fibers that you had when you were born are the same muscle fibers that you have now, the only difference is they've gotten larger.

00:33 This increase in size is the definition of hypertrophy.

00:41 This is in contrast to hyperplasia.

00:45 Hyperplasia is what we normally think of when we think of things growing and that hyperplasia is an increase in the number of cells.

00:56 Some smooth muscles such as those in the uterus do have the ability to undergo hyperplasia.

01:03 And in this case, parasites are the stem cells that allow for this to happen.