392 



Hitchcock's anatomy 



Fig. 362. 



A View of the Labyrinth and Tympanum of the Ear, with the Bones in Situ, highly 

 magnified. 1, Processus Longus of the Malleus. 2, Its Processus Brevis. 3, Its Manu- 

 brium. 4, Its Neck. 5, Its Head. 6, Body of the Incus. 7, Its Processus Brevis. 8,8, 

 Its Processus Longus, with the little head for articulating with the Stapes. 9, The Head 

 of the Stapes. 10, Its Anterior Cms. 11, Its Posterior Crus. 12, Its Base. 13, 14, 15, 

 The first turn of the Cochlea. 10, 17, 18, Its second turn. 19, Its half turn. 20, The 

 Cupola. 21, The Fenestra Rotunda. 22, 23, The Vestibule. 24, 25, 26, Anterior Semi- 

 circular Canal. 27, Its junction with the Posterior Canal. 28, 29, 30, 31, The Posterior 

 Semicircular Canal. 32, 33, 34, 35, The External Semicircular Canal. The Enlargements 

 on these Canals are called Ampullse. 



it resembles a snail shell, and some of the others semicircular 

 canals, because they are tubes containing fluid called Peri- 



FlG. 363. 



Cochlea without the Nerve. 



