In general, activating a slow-oxidative motor unit in a muscle will generate more tension than activating a fast-glycolytic motor unit.
Indicate whether the statement is true or false.
(
Question 2) Characteristics of slow-oxidative fibers include numerous mitochondria, abundant myoglobin, and large stores of glycogen.
Indicate whether the statement is true or false.
(
Question 3) The difference in color between white muscle and red muscle is accounted for by the greater abundance of glycogen in white muscle.
Indicate whether the statement is true or false.
(
Question 4) Fast fibers can be distinguished from slow fibers by the rate at which their myosin-ATPases split ATP.
Indicate whether the statement is true or false.
(
Question 5) A skeletal muscle generates its greatest twitch tension when it is stretched to twice its resting length.
Indicate whether the statement is true or false.
(
Question 6) Sustained contraction and tension in a skeletal muscle is called tetanus.
Indicate whether the statement is true or false.
(
Question 7) During isometric contraction of a skeletal muscle fiber, tension increases but the fiber length stays the same.
Indicate whether the statement is true or false.
(
Question 8) The latent period of an isotonic twitch is shorter than the latent period of an isometric twitch.
Indicate whether the statement is true or false.
(
Question 9) The term twitch refers to the mechanical response of a muscle fiber during one cross-bridge cycle.
Indicate whether the statement is true or false.
(
Question 10) When the load on a skeletal muscle is less than the tension the muscle generates, a concentric isotonic contraction results.
Indicate whether the statement is true or false.
Quick Reply
