Can a skeletal muscle contract in need shortening?
Answer:
right..the muscle can contract without shortening and it is call isometric contraction.
the muscle consists of muscular portions and the fibrous portion(tendons) and the fascia covering the muscle entirely.
in isometric contractions, the muscle contracts but the nouns opposes shortening, thus the tendinous portion lengthen. thus the muscle length remains the same.
hope u get the difference btwn contraction and shortening.
well no contraction= shortening but if one and only individual cells contract you wont see an actual shortening of the muscle but the individual cell will still shorten
Yes. That is called isometric contraction.
Yes, the actin and myosin filament bind and apply tension, but it is not plenty to overcome whatever dissimilar forces are acting on that muscle (like when you strain with adjectives your might but can't lift something heavy) The muscle stays like peas in a pod length but becomes stressed, and like SAMI said is call and isometric (means same length) contraction as opposed to isotonic (contant tone, lenght shortens) or isolytic, contained by which the opposing force overpowers the muscle and cause it to lengthen.