OSTEOLOGY 



sophalangeal joint of the great toe; one sometimes at the metatarsophalangeal 

 joints of the second and fifth toes, one occasionally at the corresponding joint of 

 the third and fourth toes, and one at the interphalangeal joint of the great toe. 



Sesamoid bones apart from joints are seldom found in the tendons of the upper 

 limb; one is sometimes seen in the tendon of the Biceps brachii opposite the radial 

 tuberosity. They are, however, present in several of the tendons of the lower 

 limb, viz., one in the tendon of the Peronseus longus, where it glides on the cuboid; 

 one, appearing late in life, in the tendon of the Tibialis anterior, opposite the smooth 

 facet of the first cuneiform bone; one in the tendon of the Tibialis posterior, oppo- 

 site the medial side of the head of the talus; one in the lateral head of the Gastroc- 

 nemius, behind the lateral condyle of the femur; and one in the tendon of the Psoas 

 major, where it glides over the pubis. Sesamoid bones are found occasionally 

 in the tendon of the Glutseus maximus, as it passes over the greater trochanter, 

 and in the tendons which wind around the medial and lateral malleoli. 



