Part E- Identification of the Events of a Muscle Contraction Drag and drop the correct terms in the correct sequence of events. > View Available Hint(s) Reset Help Depolarization of the sarcolemma Muscle fiber returns to the resting membrane potential Repolarization of the sarcolemma Neurotransmitter binds to receptors on the muscle fiber Sodium channels on the sarcolemma open, and sodium enters the celI

Muscles typically shorten when they contract.  Explain the three ways by which they return to their resting length, and then, explain why keeping your muscle connective tissues (endo-, peri-, and epimysium) stretched and pliable is so important for muscle function.  Be specific and provide examples.

Smooth muscle has actin/myosin, why is it not striated? (consider what striation can provided)

H-Zone I-z $ Since during muscle contraction, the myosin Filaments overlap diminishes in size because the region of overlap between the actin increases. Describe the amounts of force generated by a muscle during a single twitch, summation, and tetanus. How does this happen if the intensity (voltage) of the stimulation is not changed? Visual Anatomy and Physiology I

34) what happens to skeletal muscle if there is no ATP present but plenty of calcium. Be specific relative to the sliding filament theory.

Can you help me the name of the all of the number of the label muscle system model?

S3

The size principle requires that the muscle fibers controlled by a single motor unit are all the same fiber type True False

Image A Image B Z M F. The images above represent the contracting unit of a muscle fiber. Using the images shown, answer the following questions. Be sure that you label your answers a, b and c. a. What is a contracting unit of a myofibril called? b. Which image represents a myofibril that is fully contracted? c. Explain how you derived your answer to part b. Be sure to use the words for the myofilaments that are involved in muscle contraction in your answer.

simple description on  how a full muscle contraction works, including calcium, actin, myosin, troponin, and tropomyosin.