anonymous
  • anonymous
When a muscle contracts, what happens? Calcium combines with ATP to produce sarcomeres. Actin produces myosin and ATP. Myosin heads attach to and pull on a series of actin-binding sites. Calcium produces contractions.
Biology
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schrodinger
  • schrodinger
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Awolflover1
  • Awolflover1
Myosin heads attach to and pull on a series of actin-binding sites.
anonymous
  • anonymous
How, I don't think so...
Awolflover1
  • Awolflover1
-_- what do you think ?

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anonymous
  • anonymous
When muscle contracts, it generates a force at the origin and insertion, causing the muscle to shorten and changing the angle of the joint.

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