In most gymnotiforms, the electric organs are derived from muscle cells.

On the other hand, there's no appropriate reception, muscle signals saying that there is no arm, right?

The paradox was to figure out how dolphins can obtain such high speeds and accelerations with what appears to be a small muscle mass.

They can occur in both childhood and adulthood, and arise as a result of neurological, mechanical or myogenic problems.

They'd looked at dental calculus under a microscope, and what they had found was things like pollen and plant starches, and they'd found muscle cells from animal meats and bacteria.

A lot of people don't know that Alzheimer's actually has physical symptoms, as well as cognitive symptoms. You lose your sense of balance, you get muscle tremors, and that tends to lead people to being less and less mobile.

This theory of motor action is based on the organization of cortical columns, which progressively integrate from simple sensory input into a complex afferent signals, or from complex motor programs to simple controls for each muscle fiber in efferent signals, forming a similar hierarchical structure.