MYOLOGY III 



Action. Extends the last bone of the middle finger. 



Interosseus Palmaris (Fig. 13, No. 32). Location. On the 

 opposite side of the bone from the interosseous dorsalis. 



Origin. From the shaft of the median metacarpal under~lEe 

 preceding. 



Insertion. To the apex of the last joint of the second, or middle 

 finger. 



Shape. Small, delicate, with long slender tendon. 



Relations. Beneath the preceding and along the metacarpal bone. 



Action. Flexes the terminal phalanx. 



Flexor Metacarpi Brevis. Location. To the lateral side of the 

 metacarpal bone. 



Origin. From the outer side of the distal extremity of the ulna. 



Insertion. To the base, in front, and on the ulnar side of the 

 proximal phalanx of the index digit. 



Shape. Delicate, with long slender tendon. 



Relations. On the lateral side of the ulna and the metacarpal 

 bone. 



Action. Flexes the metacarpus. 



MUSCLES OF THE POSTERIOR LIMB 



Sartorius Gluteus primus 



Gluteus medius Gluteus minimus 



Extensor femoris Vastus internus 



Biceps flexor cruris Semitendinosus 



Semitendinosus accessorius Semimembranosus 



" Femoro-caudal Obturator externus t 



Obturator internus Gemellus 



Abductor longus Adductor magnus 



Sartorius (Fig. 23, No. 7). Location. Extreme anterior portion 

 of the thigh. 



Origin. From the outer two-thirds of the superior surface of the 

 raised emarginations of the anterior border of the ilium, and by 

 fascia from the neural spines of the fourth dorsal vertebra. 



Insertion. Obliquely by a semi tendinous fascia to the inner edge 

 of the ligamentum patella, and to the inner and adjacent border of 

 the anterior half of the summit of the tibia. 



Shape. Large, fleshy. 



