74 



ANATOMY IN A NUTSHELL. 



surfaces. The anterior surface gives attachment to the anterior ligament of 

 the wrist, the external is prolonged downward making the styloid process to 

 the base of which is attached the Supinator longus and to the apex externally 

 the lateral ligament. This process has a groove passing distally and forward for 

 the Extensor ossis metacarpi pollicis and Extensor brevis pollicis. The poste- 

 rior surface gives attachment to the posterior ligament and has three grooves* 

 which are lir>t. for the Extensor carpi radialis lorigior and brevior, the second 

 for the Extensor longus pollicis. and the third for the Extensor communis 

 digitorum ami Extensor indicis. 



PLATE XXVII 



(I) FLEXOR PROFUNDUS DIGITORUM. 



(I) FLEXOR 

 SUBLIMUS DIGITORUM 



I 1 ' FLEXOR LONGUS 

 POLLICIS 



(I) FLEXOR BREVIS ANO 

 ADDUCTOR POLLICIS. 

 A30UCTOR POLLICIS. ANt 

 (I) FLEXOR BREVIS 



OPPONENS POLLICIS 

 Ml FLEXOR CARPI RADIALIS. 



HI EXTENSOR 



OSSIS METACARPI POLLICIS 



(0) OPPONENS POLLICIS 



ABDUCTOR POLLICIS. (0) 



(I) ABDUCTOR AND 



FLEXOR BREVIS MINIMI DIGIT! 



(I) OPPONENS MINIMI DIGITI. 

 (0) ABDUCTOR TRANSVERSUS POLUCIS. 



(I) FLEXOR CARPI ULNARIS. 



OPPONENS MINIMI DIGITI (0.) 

 FLEXOR BREVIS MINIMI DIGITI (0)." 



(0) ABDUCTOR MINIMI DIGTI 

 (I) FLEXOR CARPI ULNARIS. 



FLEXOR BREVIS POLLICIS. (0) 



(0) ADDUCTOR 0BLIQUUS POLLICIS. 



Bones oi Left Hand- Anterior View 



Ossification. From three centers, one for the diaphysis about the 



eighth week of intrauterine life, one for the distal epiphysis about the second 



year which join- the bone aboul the twentieth year, and one for the proximal 



extremity, the fifth year, which joins the bone about the seventeenth year. 



grooves correspond to the second, third, and fourth of the posterior annular ligament 

 oi tin- wrist-joint 



