tesa12345
  • tesa12345
How do your arm muscles work to lift a mug of coffee to your lips? The biceps muscle contracts while the triceps muscle relaxes. Only then can the forearm move up to lift the mug. The muscle tendons in your arms stretch to their limit as a result of the flexibility exercises that lift the mug. Your muscles rapidly increase the speed at which they twitch to trigger your arm movement. Your biceps and triceps muscles first relax, and then the arm muscle raises the mug.
Health Sciences
  • Stacey Warren - Expert brainly.com
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SOLVED
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katieb
  • katieb
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Vickyisthesmartone123
  • Vickyisthesmartone123
Sorry i have never in me life heard this before
anonymous
  • anonymous
The process of lifting anything, including a coffee cup, involves the nervous system to send a signal from your brain to the muscles in your arm which then uses your sensory system to determine how far to lift.

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