Exam 7: The Muscular System

Which structure delivers a signal from the motor neuron to all the sarcomeres of a muscle cell?

Overuse, misuse, and age are some of the factors that contribute to excessive stress on a tendon, causing inflammation known as ________.

The sarcoplasmic reticulum stores ions that are necessary for skeletal muscle contractions. Which of the following ions does it store?

Which of these structures is part of a muscle cell's plasma membrane that delivers signals to the sarcomere?

What is the result of resistance exercise?

Muscle contraction results from the repeated cycle of interactions between myosin and actin. What is the last step of this cycle, after which the cycle starts over again?

Tetanus is a very serious disease caused by a toxin from a bacterium. Which of the following is the most obvious symptom?

The release of acetylcholine into the neuromuscular junction is shortly followed by the release of ________ ions from the sarcoplasmic reticulum.

Why does a person continue to breathe heavily after prolonged activity?

A muscle will ________ if levels of calcium and potassium decrease in the blood.

Which of the following is not a function of muscle?

________ are the proteins that appear as dark bands that mark the ends of the sarcomeres.

The attachment point of a muscle to a bone that can move is called the ________.

In former times, surgeons used small doses of curare to relax the patient's abdominal and other muscles during operations. Why did this compound work? What additional precautions do you think the medical staff needs to put into place when a patient is under anesthesia?

Muscle cells that contract slowly when stimulated but with enormous endurance are called ________.

Which component of a muscle does the calcium ion combine with to allow a contraction to occur?

Which of the following are protein filaments that function in muscle contraction and are shaped like a golf club with two heads?

________ provides the energy required for voluntary muscle contraction in an individual's body.

Compare and contrast the physiological effects of steroid use to increase and improve performance in both genders.

Which of these muscle types permit(s) voluntary movement?