Adductor hallucis muscle

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Adductor hallucis muscle
Musculus adductor hallucis.png
Muscles of the sole of the foot. Third layer. (Oblique head visible at center, and transverse head visible at bottom.
Latin musculus adductor hallucis
Gray's p.493
Origin Oblique Head: proximal ends of middle 3 metatarsal bones; Transverse Head: MTP ligaments of lateral 3 toes
Insertion lateral side of base of first phalanx of the 1st toe
Artery Lateral plantar artery
Nerve Lateral plantar nerve
Actions adducts hallux
Antagonist Abductor hallucis muscle
Anatomical terms of muscle

The Adductor hallucis (Adductor obliquus hallucis) arises by two heads—oblique and transverse and is responsible for adducting the big toe. It has two heads, both are innervated by the lateral plantar nerve.

It evolved from the contrahens I muscle as Man's ancestors' thumbs and big toes became opposable.

Structure[edit]

Oblique head[edit]

The oblique head is a large, thick, fleshy mass, crossing the foot obliquely and occupying the hollow space under the first, second, third and fourth metatarsal bones.

It arises from the bases of the second, third, and fourth metatarsal bones, and from the sheath of the tendon of the Peronæus longus, and is inserted, together with the lateral portion of the Flexor hallucis brevis, into the lateral side of the base of the first phalanx of the great toe.

Transverse head[edit]

The transverse head (Transversus pedis) is a narrow, flat fasciculus which arises from the plantar metatarsophalangeal ligaments of the third, fourth, and fifth toes (sometimes only from the third and fourth), and from the transverse ligament of the metatarsus.

It is inserted into the lateral side of the base of the first phalanx of the great toe, its fibers blending with the tendon of insertion of the oblique head.

Variation[edit]

Slips to the base of the first phalanx of the second toe. Opponens hallucis, occasional slips from the adductor to the metatarsal bone of the great toe.

History[edit]

Etymology[edit]

The 'English' name adductor hallucis muscle is partly Latin, i.e. adductor hallucis and partly English, i.e. muscle. The full Latin expression as used in the current edition[1] of the official Latin nomenclature (Terminologia Anatomica) is musculus adductor hallucis.

In classical Latin hallex,[2][3] allex,[2][4] hallus [2] and allus,[2] with genitive (h)allicis and (h)alli, are used to refer to the big toe. The form hallux (genitive, hallucis) currently in use is however a blend word of the aforementioned forms.[2][5] Musculus adductor hallicis[6] is used instead by some.

Additional images[edit]

References[edit]

This article incorporates text from a public domain edition of Gray's Anatomy.

  1. ^ Federative Committee on Anatomical Terminology (1998). Terminologia Anatomica. Stuttgart: Thieme
  2. ^ a b c d e Hyrtl, J. (1880). Onomatologia Anatomica. Geschichte und Kritik der anatomischen Sprache der Gegenwart. Wien: Wilhelm Braumüller. K.K. Hof- und Unversitätsbuchhändler.
  3. ^ Triepel, H. (1908). Memorial on the anatomical nomenclature of the anatomical society. In A. Rose (Ed.), Medical Greek. Collection of papers on medical onomatology and a grammatical guide to learn modern Greek (pp. 176-193). New York: Peri Hellados publication office.
  4. ^ Lewis, C.T. & Short, C. (1879). A Latin dictionary founded on Andrews' edition of Freund's Latin dictionary. Oxford: Clarendon Press.
  5. ^ Triepel, H. (1910). Die anatomischen Namen. Ihre Ableitung und Aussprache. Mit einem Anhang: Biographische Notizen.(Dritte Auflage). Wiesbaden: Verlag J.F. Bergmann.
  6. ^ Triepel, H. (1910). Nomina Anatomica. Mit Unterstützung von Fachphilologen. Wiesbaden: Verlag J.F. Bergmann.

External links[edit]