- Skeletal system
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- Muscles of thigh
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- Muscles of foot
- Dorsal muscles of foot
- Plantar muscles of foot
- Medial group (Muscles of big toe)
- Middle group of foot muscles
- Lateral group (Muscles of little toe)
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Abductor digiti minimi of foot
The abductor digiti minimi (Latin: musculus abductor digiti minimi) is a small muscle of the foot located in its lateral compartment. Together with the opponens digiti minimi and flexor digiti minimi brevis muscles, it belongs to the lateral compartment of the plantar foot muscles. The abductor digiti minimi stretches between the calcaneus, fifth metatarsal bone and proximal phalanx of the little toe.
|Abductor digiti minimi of foot|
|Origin||Medial and lateral processes of calcaneal tuberosity, plantar aponeurosis|
|Insertion||Lateral aspect of base of 5th metatarsal bone and proximal phalanx of 5th toe|
|Action||Abduction and flexion of 5th toe at 5th metatarsophalangeal joint, supports lateral longitudinal arch|
|Innervation||Lateral plantar nerve (S2 - S3)|
|Blood supply||Lateral plantar artery|
The abductor digiti minimi of the foot originates from the medial and lateral processes of the calcaneal tuberosity and plantar aponeurosis.
The abductor digiti minimi of the foot inserts on the lateral aspect of the base of the fifth metatarsal bone and proximal phalanx of the fifth toe.
The abductor digiti minimi of the foot provides abduction and flexion of the fifth finger at the fifth metatarsophalangeal joint. Also, it supports the lateral longitudinal arch.
The abductor digiti minimi of the foot is innervated by the lateral plantar nerve (S2 - S3) - a terminal branch of the tibial nerve.
The abductor digiti minimi of the foot receives arterial blood supply from the branches of the lateral plantar artery that arises from the posterior tibial artery.