SESAMOID BONES. 



269 



Ossa Sesatnoidea. 



As in the hand, small independent nodules of bone, called sesamoid bones, are met 

 with in the ligaments and tendons of the foot. The most constant of these are found in 

 connexion with the metatarso-phalangeal articulation of the great toe, where they lie in 

 grooves on the plantar surface of the head of the metatarsal bone in connexion with the 

 tendons of the short muscles of the great toe. Small osseous nodules occupying a 

 corresponding position are occasionally met with in the other toes, and instances have 

 been recorded of like ossicles occurring on the plantar aspect of the interphalangeal joint 

 of the great toe. 



An osseous nodule is not infrequently met with in the tendon of the peroneeus longus 

 as it turns round the lateral border of the foot to lie in the groove on the under surface of 

 the cuboid. 



