Check all that occur to skeletal muscle with advanced age.Check All That ApplySlow-twitch muscle fibers decrease in number more rapidly than fast-twitch fibers.Slow-twitch muscle fibers decrease in number more rapidly than fast-twitch fibers.The number of muscle fibers remains relatively constant.The number of muscle fibers remains relatively constant.The number of muscle fibers decreases steadily with time.The number of muscle fibers decreases steadily with time.The number of motor units decreases with increasing age.The number of motor units decreases with increasing age.

Which of the following is not an age-related change in skeletal muscle?Multiple ChoiceLoss of muscle strengthLoss of fast-twitch fibersLoss of synapse surface areaDecrease in motor unitsDecreased recovery time

Multiple Select QuestionSelect all that applyWhich three characteristics are signs of aging in the muscular system?Multiple select question.weak contractionshypertrophyslow reflexesatrophycramping

Choose the muscle fibers that contract more slowly, have more mitochondria and are more fatigue resistant.Multiple choice question.Slow-twitch muscle fibersFast-twitch muscle fibers

Select all that applySlow twitch or Type I muscle fibers Blank______. Multiple select question.respond rapidly to nervous stimulationhave high aerobic capacity but low anaerobic capacityhave a fast form of myosin ATPase, which allows them to break down ATP more rapidly than other muscle fiber typeshave the highest resistance to muscle fatiguehave well developed blood supplies

Which type of muscle fiber contributes most to muscular endurance?Group of answer choicesall answers are correctcardiacfast-twitchslow-twitch