26 PRACTICAL ANATOMY. 



SYNOVIAL MEMBRANES. In your practical work on the cadaver you will find : 

 (i) Articular synovial membrane lining the capsules of movable joints; (2) 

 vaginal synovial membrane lining the ligamenta vaginales, surrounding the 

 tendons to the fingers and toes, and also in other places where a tendon would 

 be exposed to friction ; (3) bursal synovial membrane between an eminence of bone 

 and a muscle playing thereover. The secretion of these synovial membranes is, 

 by virtue of its viscidity, fitted to resist friction. Synovial membranes belong to 

 the class of serous membranes. 



THE Mucous MEMBRANES. These communicate with the air. You will 

 demonstrate them lining the digestive tract, the genito-urinary passages, and the 

 respiratory tract. The margin between skin and mucous membrane is called a 

 muco-cutaneous margin. You must demonstrate this margin in all regions of 

 the body. The specific name of any muco-cutaneous margin is determined by 

 the name of the region, as : (i) The nasal ; (2) ocular ; (3) oral ; (4) anal ; and (5) 

 vaginal muco-cutaneous margin. These are all anatomical weak points, because 

 they are junctional areas. 



NERVE-ENDINGS. You should remember that muscles receive both sensory 

 and motor nerves ; that nerve-endings are in tendon, blood-vessel, all the mem- 

 branes, and skin ; that you are not supposed to dissect out these nerve-endings 

 this belongs to histological and physiological research. You are to note where 

 the muscle receives its nerve-supply, usually on the under surface, and then 

 trace the same as far as possible. 



