MYOLOGY III 



Action. — Extends the last bone of the middle finger. 



Interosseiis Pahnaris (Fig. 13, No. 32). Location. — On the 

 opposite side of the bone from the interosseous dorsaUs. 



Origin. — From the shaft of the median metacarpal imder the 

 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. — DeHcate, 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 



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 iUum, and by 

 fascia from the neural spines of the fourth dorsal vertebra. 



Insertion. — Obliquely by a semitendinous 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. 



