Muscle strain
An abdominoscrotal muscle is another name for the cremaster muscle, a thin muscle attached to the testicles.
skin
This is muscle tissue that you have to think to make it move. Another name for it is skeletal muscle.
It is called involuntary muscle or smooth muscle.
Striated muscle
delt Deltoid.
A synergist muscle is a muscle that aids another by promoting the same movement.
Creatinine is another name for chemical waste. It is a breakdown product of creatine phosphate in muscle.
smooth muscle
A long or flat narrow muscle :)
unstriated involuntary muscles