Map presenited by Sapling Leaming When the palmaris longus muscle in the forearm

Question

Map presenited by Sapling Leaming When the palmaris longus muscle in the forearm is flexed, the wrist moves back and forth. If the muscle generates a force of 43.5 N and it is acting with an effective lever arm of 2.75 cm, what is the torque that the muscle produces on the wrist? Number N m Palmaris lkongus muscke Curiously over 15% of all Caucasians lack this muscle: a smaller percentage of Asians (around 5%) lack it. Some studies correlate the absence of the muscle with carpal tunnel syndrome.

Explanation / Answer

Given data

muscle generates a force F=43.5 N

lever arm l=2.75 cm

torque acting on the wrist T =F*lever arm

=43.5*2.75*10^-2

=1.19 N.m

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