392 



THE MALE KEPEODUCTIYE OKGANS 



somewhat resembles that of the end bulbs of Krause. This nerve 

 fibre is, however, accompanied by another and finer fibre which, as 

 Timofejew* has shown, breaks into a close network of fine fibrils 

 surrounding the axial nerve fibre in a peculiar basket-like manner. 



THE BULBO-UKETHKAL GLANDS (Cowper's Glands). 



These are two small tubulo-acinar glands which are divisible 

 into numerous small lobules. The lobules are separated by con- 

 nective tissue septa containing both smooth and striated muscle 

 fibres. The secreting acini are lined by columnar cells, some of 



which are finely granular and stain with 

 eosin and acid dyes, while others are 

 apparently filled with mucous secretion 

 and react to the specific dyes for mucin. 

 Certain other tubular alveoli are lined 

 by low cuboidal or flattened epithelium. 

 The epithelium rests upon a distinct 

 cellular basement membrane. 



FIG. 318. RECONSTRUCTION OF A Cow- 



PEK'S GLAND OF MAN. 



The tubular ducts are closely surround- 

 ed by the expanded alveoli, x 100. (After 

 Maziarski.) 



life I 



c 1^^^ 



FIG. 319. FROM A SECTION OF A Co TO- 

 PER'S GLAND OF MAN. 



a, duct ; &, tubules ; c, stroma. x 130. 

 (After Braus.) 



The intralobular and the smaller interlobular ducts are also 

 lined by a single layer of columnar cells. Their wall is supplied 

 with smooth muscle, most of whose fibres have a longitudinal di- 

 rection. The two ducts of Cowper's glands open into the bulbous 

 portion of the urethra. 



* Anat. Anz., 1896. 



