90 THE MEMBRANOUS LABYRINTH, BY PROF. RUDINGER. 



means of fixation, are feebly developed in those angles where 

 the former separate from the bones. Vessels are constantly 

 met with in transverse sections of the ligaments. 



The moderately tense and finely fibrous fasciculi of connective 

 tissue traversing the cavity of a semicircular canal (see fig. 



Fig. 299. 



Fig. 299. Transverse section of an osseous and membranous semi- 

 circular canal of Man. 1, Osseous wall ; 2, fasciculi of connective 

 tissue, with vessels enclosed within them ; 3, point of j unction 

 of the fasciculus with the periosteum ; 4, membranous semicircular 

 canal, with its three layers ; 5, ligamenta canaliculorum, with their 

 spaces or cavities ; 6, point where the membranous semicircular 

 canal coalesces with the periosteum. 



299), which are attached on the one hand to the periosteum, and 

 on the other to the free wall of the labyrinth, are to be re- 

 garded as essentially the carriers of vessels, and also as means of 

 fixation for the free wall of the membranous semicircular canal. 

 They for the most part run at right angles to the longitudinal 



