If we stimulate a skeletal muscle at a voltage above the maximal stimulus voltage and above the fusion frequency, the resulting contraction will exert the _______________________ (3 words).

Which muscle is this?

Can you please label the landmarks and muscles visible in these images?

Holding a cellphone with constant tension is considered an isometric contraction. true False

a contraction in which a muscle shortens in length is called an ____________contraction.

Please provide the answer to this, it is part of a worksheet and I want to be able to check my answer to study.

Assuming the ultrasound beam strikes the muscle layer at 90◦ , how wide will the fat muscle boundary appear in the ultrasound image?

Select all correct answers (i.e. more than one answer may be correct). What is the advantage of having a muscle with a bipennate muscle fiber orientation rather than a longitudinal fiber orientation? Assume that the general muscle volume is held constant between orientation types. Obipennate muscle has a smaller physiological cross-sectional area Obipennate muscle has larger force-producing capabilities Obipennate muscle has a greater muscle shortening capability

The shortening of _____________ will cause the shortening of a muscle fiber. Z lines     thin filaments     sarcomeres     thick filaments

Select the best answer or answers from the choices given: Aerobic exercise results in all of the following except (a) more capillaries surrounding muscle fibers, (b) more mitochondria in muscle cells, (c) increased size and strength of existing muscle cells, (d) more myoglobin.