V i ^ '' 



100 LABORATORY MANUAL OF HUMAN ANATOMY 



to the pulp, (2) dorsal, to the bed of the nail. On the 

 terminals find the form of terminal corpuscle known as the 

 Pacinian corpuscle (corpuscula lamellosa [Vateri, Pacini]). 



Volar Ramus of Ulnar Nerve in Hand (Ramus volaris manus N. 



ulnaris). (Fig. 35.) 



Note position of volar ramus of ulnar nerve in wrist (between 

 ligamentum carpi volar e and ligamentum carpi transversum). 

 Observe branching as follows : 



(a) Deep ramus (ramus profundus). 



Note its disappearance between M. abductor digiti quinti and M. 

 flexor digiti quinti brevis. It will be studied later. 



(b) Superficial ramus (ramus super ficialis) . 



(ba) Ramus muscularis to M. palmaris brevis. 



(bb) Common volar digital nerve (N. digitalis volaris communis). 



FIG. 36. 



Aa. metacarpeae volares Aa. metacarpeae dorsales, II. and III. 



Tendons of the M. flexor digitorum 

 profundus and Mm. lumbricales 



M. adductor pollicis^ .^^^^^S^^^^^^f' su P er -P cial \ Fascia of the back 

 Deep fascia of the palm ^ ^^jJisM l*\ lUfi -.RffiwW dee P of the hand 



^^S^^^^^m^^i^mma^imm^'i^^' 



Thenar 



Arcus volaris superficialis Aponeurosis palmaris 



Cross-section of the palm of the hand through the bases of the metacarpal bones. Frozen 

 section. Hand pronated. (After Toldt, Anat. Atlas, Wien, 1900, 2 Aufl., p. 621, Fig. 1000.) 



1. Ramus anastomoticus cum N. mediani. 



2. Rami cutanei to skin of palm. 



3. Proper volar digital nerves (Nn. digit ales volares 



proprii) 



VIII. to ulnar side of ring-finger ; 



IX. to radial side of little finger. 



(be) Proper volar digital nerve (N. digitalis volaris proprius), 



X. to ulnar side of little finger. 



Find the muscular rami given off by this nerve to the 

 muscles of the hypothenar eminence. 



Transverse Carpal Ligament (Ligamentum carpi transversum) (O. 



T. Anterior Annular Ligament). (Cf. Spalteholz, Figs. 363- 



365.) 



Contrary to statements in many books, this ligament is not 

 directly continuous either with the fascia antibrachii or with the 



