What is the action of plantar interossei?

A. Adduction 2nd 3rd 4th and 5th toes flexion interphalangeal joints and metatarsal-phalangeal joints.
B. The tendons split to give 2 insertions to the lateral side of the base of the proximal phalanx and dorsal expansion of 2, 3, 4. 5
C. Adduction 3rd 4th and 5th toes flexion interphalangeal joints and metatarsal-phalangeal joints
D. Abduction 2nd, 3rd, and 4th toes flexion interphalangeal joints and metatarsal-phalangeal joints
E. Abduction 3rd, 4th and 5th toes flexion interphalangeal joints and metatarsal-phalangeal joints

This question is part of muscle of foot

Asked by Littletough, Last updated: Feb 07, 2020

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3 Answers

John Adney

Answered Sep 27, 2017

This can't adduct the 2nd toe because the plantar interossei don't attach to the 2nd toe. The plantar interossei originates on the medial base of toes 3-5 and attaches to the respective med proximal phalances in the inner sling of said toes.