When random muscles in your body twitch it is called a muscle spasm. It can happen just about anywhere; your arm, leg eye, etc.
No, it is not a noun. It is the past tense of the verb "to twitch."
A muscle twitch is an involuntary contraction of a muscle group without conscious effort.
summation
If you exercise that particular muscle, the twitch should go away.
I don't think so because my cat had two liters of kittens and none of them twitched.
cutaneous muscle
The three type of muscle fibers are fast-twitch, slow-twitch, and hybrid.
Slow twitch and fast twitch A muscle fibers.
slow twitch and fast twitch
____ twitch muscle fibers are used for prolonged activity and have ___ mitochodria. Slow; many
I think you are thinking of fast twitch muscles. There are two kinds fast twitch and slow twitch.
the muscle twitch is a brief and "jerky" movement, while the tetanic contraction is prolonged and continuous