Usain Bolt, a world champion sprinter, can run a 10 m split in 0.82 s. Say you obtain a quadriceps muscle sample from Usain Bolt and compare it to one from a 25-year-old male long-distance runner. What differences do you expect to observe between those two muscle samples?
A) more fast-twitch fibers in Usain Bolt's leg muscles
B) more mitochondria in Usain Bolt's leg muscles
C) red and white muscle fibers of larger cross-sectional area in Usain Bolt's leg muscles
Correct Answer:
Verified
Q73: The interaction of two proteins-actin and myosin-allows
Q74: Muscles that contract slowly and use less
Q75: Muscle force is increased by increasing:
A)motor neuron
Q76: Muscles do not produce any force unless
Q77: Which of the following is the type
Q79: Muscle contractions have _ force at slower
Q80: You control your posture with fast-twitch muscles.
Q81: Tetanus is a(n):
A)muscle contraction of sustained force
Q82: When muscle cells are stimulated at such
Q83: When muscles combine to produce similar motions
Unlock this Answer For Free Now!
View this answer and more for free by performing one of the following actions
Scan the QR code to install the App and get 2 free unlocks
Unlock quizzes for free by uploading documents