Plantar interossei muscles
(Redirected from Plantar interossei)
Plantar Interossei Muscles are a group of three muscles located in the foot. They are part of the interossei muscles of the foot, which also include the dorsal interossei muscles. The plantar interossei muscles are located on the medial side of the foot and are responsible for adduction of the 3rd, 4th, and 5th toes.
Anatomy[edit | edit source]
The plantar interossei muscles originate from the medial side of the 3rd, 4th, and 5th metatarsal bones. They insert into the base of the proximal phalanges of the same toes. The muscles are innervated by the lateral plantar nerve, a branch of the tibial nerve.
Function[edit | edit source]
The primary function of the plantar interossei muscles is to adduct the 3rd, 4th, and 5th toes. This means they pull these toes towards the midline of the foot. They also assist in flexion of the toes at the metatarsophalangeal joints and extension at the interphalangeal joints.
Clinical Significance[edit | edit source]
Damage to the plantar interossei muscles can result in a loss of toe adduction. This can affect balance and gait, and may cause pain or discomfort. Conditions that can affect the plantar interossei muscles include neuropathy, muscle strain, and foot drop.
See Also[edit | edit source]
References[edit | edit source]
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Contributors: Prab R. Tumpati, MD