the answer is humans do not have muscles..... so there brat's.
if you're on OdysseyWare your answer would be Active stretching.............. =)
your tounge and jaw muscle
When one muscle in a pair contracts the other expands.
antagonistic muscle action.
When one is contracting, the opposing muscle is relaxing.
Elastic recoil forces, opposing muscle contraction and gravity
Because it is between the two bones instead.
internal oblique opposes the external oblique
Peristalsis
Reciprocal Inhibition (Concepts of Fitness and Wellness 8th edition. Corbin, Welk.) Found on page 154, first paragraph, right side of page.
the answer is when one muscle contracts the other relaxes
Tybalt is the first to approach a member of an opposing group in "Romeo and Juliet." He challenges Romeo to a duel at the Capulet party.