The Peronæi, or Fibulæi Postici, are otherwise call'd the Longus and the Brevis, whereof one proceeds from the upper and almost fore-part of the Perone, terminating in the upper-part of the Bone, that supports the great Toe in the Metatarsus, and the other from the lower part of the Perone, adhering in like manner to the Bone with which the little Toe is sustain'd.
With what Motions are the Toes endu'd, how many Muscles have they, and which be they?
The Toes are bent and extended, as also drawn inward and outward, by the means of twenty two Muscles, of which sixteen are Common, and six Proper. The former are two Flexors, two Extensors, four Lumbricales, and eight Interossei. The first Flexor is nam'd Sublimis, and the other Profundus.
The Sublimis or Perforatus derives its Original from the lower and inner-part of the Talus and is fixt in its proper place by four cleft Tendons, which are inserted in the upper-part of the Bones of the first Phalanx of the four Toes. It is situated under the Sole of the Feet.
The Profundus or Perforans hath its beginning in the top and back-part of the Leg-Bone and Perone, slips under the Malleolus Internus thro' the Sinus Calcaris, and makes four Tendons which pass thro' the Fissures of the Tendon of the Sublimis, and cleaves to the Bones of the last Phalanx of the Toes, to bow them.
The first Extensor is call'd the Common, and the other the Pediæus.
The Common Extensor, or the Longus, takes its rise from the top and fore-part of the Tibia in the place of its joyning with the Perone or
Fibula, and divides it self into four Tendons, which after having pass'd under the Annular Ligament, are inserted in the Articulations of every Toe.
The Pediæus or the Brevis, being plac'd over the Foot, proceeds from the Annular Ligament, and the lower-part of the Perone, and sends forth four Tendons, which are fixt to the first Articulation of the four Toes on the outside, Thus this Muscle, together with the Longus, causeth their Extension.