Abductor Digiti Minimi (foot)

The abductor digiti minimi (abductor minimi digiti, abductor digiti quinti) is a muscle which lies along the lateral (outer) border of the foot, and is in relation by its medial margin with the lateral plantar artery, vein and nerves. Its homolog in the arm is the abductor digiti minimi muscle in the hand. Latin: Musculus abductor digiti minimi pedisAntagonist: Flexor digiti minimi brevis muscle

The abductor digiti minimi (abductor minimi digitiabductor digiti quinti) is a muscle which lies along the lateral (outer) border of the foot,[1] and is in relation by its medial margin with the lateral plantar arteryvein, and nerves.

Its homolog in the arm is the abductor digiti minimi muscle in the hand.

Contents

Origin and insertion

It arises, by a broad origin, from the lateral process of the tuberosity of the calcaneus, from the undersurface of the calcaneus between the two processes of the tuberosity, from the forepart of the medial process, from the plantar aponeurosis, and from the intermuscular septum between it and the flexor digitorum brevis.[2]

Its tendon, after gliding over a smooth facet on the under the surface of the base of the fifth metatarsal bone, is inserted, with the flexor digiti quinti brevis, into the fibular side of the base of the first phalanx of the fifth toe.[2]

Innervation

The abductor digiti minimi is innervated by the lateral plantar nerve, a branch of the tibial nerve.

Function

Its function is flexion[3] and abduction of the fifth (little) toe at the metatarsophalangeal joint.[2][3]

Clinical relevance

Due to its role in posture during all physical activity while in an upright position, the abductor digiti minimi is often the target of injury.[citation needed]

In case of polydactyly it may insert to the sixth toe instead if there is one.[citation needed]

Etymology

The Latin name abductor digiti minimi translates to abductor of the small digit while the alternative name abductor digiti quinti means abductor of fifth digit.

Additional images

Abductor digiti minimi muscle of foot
First layer of the muscles of the sole (abductor digiti minimi visible at center right).
Superficial view of the plantar arteries (abductor digiti minimi visible at center right).
Details
OriginPlantar aponeurosis
InsertionFifth toe or phalanges
ArteryLateral plantar artery
NerveLateral plantar nerve
ActionsFlexion and abduction of the fifth toe
AntagonistFlexor digiti minimi brevis muscle
Identifiers
LatinMusculus abductor digiti minimi pedis

*Disclaimer: This information is not intended to be a substitute for professional medical advice. You should not use this information to diagnose or treat a health problem or disease without consulting with a qualified healthcare provider.
Please consult your healthcare provider with any questions or concerns you may have regarding your condition.
The information provided is for educational purposes only and is not intended as diagnosis, treatment, or prescription of any kind. The decision to use, or not to use, any information is the sole responsibility of the reader. These statements are not expressions of legal opinion relative to the scope of practice, medical diagnosis or medical advice, nor do they represent an endorsement of any product, company or specific massage therapy technique, modality or approach. All trademarks, registered trademarks, brand names, registered brand names, logos, and company logos referenced in this post are the property of their owners.

Therapeutic Massage, Sports Massage Therapy in Santa Barbara, Goleta
Therapeutic Swedish Massage, Sports Massage Therapy in Santa Barbara, Goleta
Don’t do Facebook- Read Why!
Nicola of Riktr Pro Massage is a practicing licensed insured professional LMT (Licensed Massage Therapist) and fine artist based in Santa Barbara, CA. Nicola has a wide range of female and male clients, including athletes, professionals, housewives, artists, landscapers, out of town visitors, people who are retired and students.

Don’t do Yelp – Read Why!

Leave a Reply

Your email address will not be published. Required fields are marked *

12 − ten =

*