Answer Happy

QUESTION 25
During muscle contraction the actin filaments grab onto the myosin filaments and tug them inward, thus shortening the sarcomere.
QUESTION 26
Muscle fiber contraction is an all or none event. Despite this, the biceps brachii can vary the tension it creates during flexion of the forearm because it can vary the
number of muscle fibers contracting at a time.
QUESTION 25 During muscle contraction the actin filamenes grab onto the myosin filaments and tug them inward, thus shortening the sacomer O True False QUESTION 26 Muscle fiber contraction is an all or none event. Despite this, the biceps brachii can vary the tension it creates during fedon of the forearm becawanwy number of muscle fibers contracting at a time. O True O False