Blog

This government agency is in charge of setting guidelines and enforcing policies for workplace safety, including clinical and research labs.

What results when a muscle is stimulated at a frequency of 20-40 times per second?

Chickens cannot fly south for the winter, but ducks can. Muscles in a duck’s breast do not fatigue as quickly as those of a chicken’s breast. Does a duck breast have more slow oxidative or  fast glycolytic muscle fibers?

Which of the following does ATP bind to?

When a sarcomere completely contracts, energized myosin heads bond to and pull actin of thin filaments two times.

The connective tissue surrounding muscle fascicles (bundles) is called__________________..

Which of the following molecules do muscles use to store energy? Select all that apply.

What protein binds peripheral actin to proteins that, in turn, attach to the endomysium?

Suppose a basketball player is an excellent free throw shooter and makes 96 % of his free throws (i.e., he has a 96% chance of making a single free throw). Assume that free throw shots are independent of one another. Suppose this player gets to shoot three free throws. Find the probability that he misses all three consecutive free throws.

Which of the following are functions of skeletal muscles? Choose all that apply.