A ballet dancer stands on their toes. What type of movement is occurring at the ankle?
Blog
A young athlete tears their rotator cuff while pitching a ba…
A young athlete tears their rotator cuff while pitching a baseball. Which of the following muscles is most likely affected?
Which type of muscle contraction occurs when tension increas…
Which type of muscle contraction occurs when tension increases, but the muscle does not change in length?
What happens in the muscle during rigor mortis?
What happens in the muscle during rigor mortis?
A factory worker develops tennis elbow (lateral epicondyliti…
A factory worker develops tennis elbow (lateral epicondylitis) from repetitive movements. Which group of muscles is overused?
Which of the following is an effect of muscle atrophy?
Which of the following is an effect of muscle atrophy?
A young child fractures the growth plate of his femur. This…
A young child fractures the growth plate of his femur. This injury has affected which type of joint?
Calcium ions play a critical role in initiating muscle contr…
Calcium ions play a critical role in initiating muscle contraction by binding to tropomyosin.
A patient with myasthenia gravis is experiencing muscle weak…
A patient with myasthenia gravis is experiencing muscle weakness due to reduced acetylcholine receptor availability at the neuromuscular junction. What is the best treatment approach?
A patient with myasthenia gravis is experiencing muscle weak…
A patient with myasthenia gravis is experiencing muscle weakness due to reduced acetylcholine receptor availability at the neuromuscular junction. What is the best treatment approach?