CHAPTEK II. 



SEKOUS AND SYNOVIAL FLUIDS MUCUS SEBACEOUS FLUIDS. 



Physiological anatomy of the serous and synovial membranes Synovial fringes 

 Bursse Synovial sheaths Pericardial, peritoneal, and pleural secre- 

 tions Quantity of the serous secretions Synovial fluid Mucus Mucous 

 membranes Mucous membranes covered with pavement-epithelium Mu- 

 cous membranes covered with columnar epithelium Mucous membranes 

 covered with mixed epithelium Mechanism of the secretion of mucus 

 Composition and varieties of mucus Microscopical characters of mucus 

 Xasal mucus Bronchial and pulmonary mucus Mucus secreted by the 

 lining membrane of the alimentary canal Mucus of the urinary passages 

 Mucus of the generative passages Conjunctival mucus General func- 

 tion of mucus Xon-absorption of certain soluble substances, particularly 

 venoms, by mucous membranes Sebaceous fluids Physiological anatomy 

 of the sebaceous, ceruminous, and Meibomian glands Ordinary sebaceous 

 matter Smegma of the prepuce and of the labia miuora Yernix 

 caseosa Cerumen Meibomian secretion Function of the Meibomian 

 secretion. 



Physiological Anatomy of the Serous and Synovial 

 Membranes. 



THE serous and synovial membranes, which are fre- 

 quently classed together by anatomists, present several well- 

 marked points of distinction, both as regards their structure 

 and the products of their secretion. The serous membranes 

 are the arachnoid, pleura, pericardium, peritonaeum, and 

 tunica vaginalis testis. The synovial membranes are found 

 around all the movable articulations. They also form elon- 

 gated sacs enveloping many of the long tendons, and exist 

 in various parts of the body in the form of shut sacs, when 

 they are called bursae. 



