I know what you mean, and yes sort of. The muscles themselves are made up of muscle fibres (millions of them per sqare inch of muscle) a few of these tear every time they are used, then they heal over time ad increase slightly in size. So put simply...
yes =)
Alex, 17.
The quadriceps are bigger because it controls your thighs so it must be bigger in order to lift your leg. As where your biceps is a muscle that controls your arm and also has a muscle to help it move. So the quadriceps are bigger and stronger.
the muscle is getting bigger because its pushing on the muscle behind it
No, if you have recently done strenuos exercise on that muscle and have a healthy diet your body will be repairing the muscle bigger and stronger
Maybe it gets bigger?
no
Weight training creates micro-tears in your muscle fibers. When your muscle is repaired using proteins, they have the effect of becoming "bigger".
you start off with a muscle, and then fat makes them bigger! so fat, tissue, and muscle!
Excersise to build bigger muscles.
The muscle in your arm contracts. The muscle on the other side of your arm, opposite from the side that you are flexing, stretches.
Yes, because they are bigger than humans.
Exercise causes your muscle cells to widen and grow so that that muscle becomes bigger and stronger.
First they must know how to sit then with a small trear hidden in your hand slowly put your hand up in front of him/her and they will get it.