Which of the following muscles is responsible for the flexion of the elbow?

Which of the following is responsible for the striated appearance of skeletal muscle?

Case Study: A Marathon Runner Hits the Wall Scenario: A marathon runner is nearing the final miles of a race. She had been maintaining a steady pace, but now her legs feel heavy and weak. Her breathing becomes labored, and she experiences a sharp decline in her performance. She is experiencing muscle fatigue. Question: Considering the physiological factors contributing to muscle fatigue, which strategy would be the LEAST effective in helping the runner combat her fatigue and improve her performance in the final miles of the race?

Which of the following is responsible for the striated appearance of skeletal muscle?

Which of the following best describes the relationship between agonist and antagonist muscles?

Please match correctly

Which of the following muscles is responsible for the flexion of the elbow?

During muscle contraction, what happens to the sarcomere?

Case Study: Scenario: An athlete complains of sudden onset calf pain during a sprint. They describe a popping sensation followed by intense pain and difficulty walking. Upon examination, there is visible swelling and bruising in the calf. Question: What is the most probable diagnosis, and what is the underlying mechanism of the injury? Hint: The , located on the posterior (back) of the femur, is responsible for knee flexion and hip extension. During sprinting, this undergoes rapid and forceful contractions. A sudden, intense contraction, especially when the is not adequately warmed up or stretched, can exceed the capacity, leading to the tearing of it’s fibers. This would explain the popping sensation felt by the athlete, followed by pain, swelling, and difficulty walking.

Which type of muscle tissue is found only in the heart?