244 



Dr. Pettigrew on the Muscular Fibres 



[June 21^ 



c\ High origin of abductor minimi digiti from fascia of forearm. 



d\ Muscular slip connecting the bracJiialis anticics with the supinator longus. Also in 



the next notice in the same column. 

 e'. Superficial slip connecting the two portions of flexor brevis poUicis. 

 f. Origin of stylo-glossits from the angle of the lower jaw. 

 g\ Subcutaneous slip from sternal fascia to cervical fascia. 



h\ Musculo-tendinous slip from flexor poUicis longus to indicial portion of profundus, 

 i'. Flexor carpi rctdicdis accessorius, a separate muscle connected with the origin of 



longior, to be inserted into the base of the metacarpal of poUex, giving a slip to 



abductor polUcis. 



7c'. Slip oi pectoralis minor inserted into costo-coracoid membrane and clavicle. 

 I'. Double muscle, the lower inserted into annular ligament and origin of abductor 

 polUcis. 



m'. Flexor longus hcdlucis exchanged slips with flexor longus digitorum. 



n'. Third lumbricalis arose ivom. flexor per for atus instead oi perforans. 



o'. Flexor brevis hcdlucis sent a large slip to base of first phalanx of second toe. 



p'. Muscular slip from insertion oi subscapidaris to the neck of the humerus and tendon 

 of latissimus, an imperfect coraco-brachialis brevis. 



q'. A distinct muscle from front of manubrium to lower border of clavicle, under fibres 

 oi pectoralis major {Sterno -clavicular). Subclavius also present. 



r'. Distinct muscle arising from first rib vrith sterno-thyroid, and inserted mto cervical 

 fascia under sterno-cleido-mastoid {costo-fascialis cervicalis). 



s'. Muscular slip from latissimus dor si to join coraco-brachialis just below coracoid 

 process, across the vessels of the axilla. 



f. On the left side a muscular slip from brachialis anticus to the fascia of the fore- 

 arm ; on the right side a fusiform muscle forming a high origin of '(hQ pronator 

 rad. teres. 



u'. Terforatus tendon of little toe from flexor accessorius. 

 v'. Muscular slip from splenius colli to serratus magnus. 



lu'. Third lumbricalis to inner side of middle finger. Fourth absent altogether. 

 x'. First dorsal interosseus double. Also in 27. 



y\ Tendinous sUp from flexor carpi ulnaris to base of fourth, as well as the fifth 

 metacarpal 



z'. Separation of anterior fibres of gluteus minimus, forming distinct muscle. 



X. " On the Muscular Arrangements of tlie Bladder and Prostate, 

 and the manner in which the Ureters and Urethra are closed/^ 

 By James Bell Pettigrew, M.D. Edin., Assistant in the 

 Museum of the Eoyal College of Surgeons of England. Com- 

 municated by Dr. Sharpey. Keceived June 21, 1866. 

 (Abstract.) 



The present communication, which is based on an extensive series of dis- 

 sections* and illustrated by photographs, is intended to show that the 

 muscular fibres of the bladder, contrary to the received opinion, are spiral 

 fibres, and with few exceptions form figure-of-8 loops. The loops are 

 variously shaped, according as they are superficial or deep, the more super- 

 ficial loops being attenuated or drawn out so as to resemble longitudinal or 



^ Of these upwards of sixty are preserved in the Museum of the Roval College of 

 Surgeons of England. . 



