Your groin is being stretched.
the muscle spindle detects excessive stretch within the muscle , it response and makes the muscle contract
Quadrilateral
Stretch.....losers
a butterfly stretch is when you sit on the floor/ground and touch the bottoms of your feet together and pull your feet as close to you as you can and pull your head to your feet
the best stretch to do before soccer is the butterfly. to do the butterfly, sit down and put your feet together. now, bend your legs and knees. its called the butterfly because it looks kind of like a butterfly's wings. have fun with that :)
buttocks
If you mean the stretch you: sit down on the ground and pull your feet up to your crotch and stretch:)
49 muscle :) 49 muscle :)
The cell is long because the , muscle needs to stretch and contract when you use that muscle. Therefore it needs to be long in order to stretch.
If you think about your mind as if it were a muscle, you can figure this out. If you stretch a muscle, it gets stronger. If you stretch your mind, you think of new things and your mind gets smarter.
No
yes skeletal muscle stretch by means of contraction.