THE EAR 



217 



Fig. 202. Outer sur- 

 face of the Pinna of 

 the Bight Ear. 



i. helix; 2, antihelix; 3, tra- 

 gus ; 4, antitragus; 5, con- 

 cha; 6, lobule. 



Fig. 203. Outer sur- Fig. 204. Inner sur- 

 face of the Eight face of the Eight 

 Pinna, showing its Pinna, 

 muscles. 



Fig. 205. Diagrammatic front view of the Left Ear. 



A portion of the temporal bone has been detached. 



i, the pinna and lobe ; 2 to a', the auditory canal ; 2 , the tympanic membrane ; 3, the cavity 

 of the middle ear above 3 is the chain of small bones ; 4, Eustachian tube ; 5, the facial 

 and auditory nerves ; 6, placed on the vestibule of the labyrinth, above the fenestra 

 ovalis ; a ; c, e andf, portions of the temporal bone b, internal carotid artery ; d, branch 

 of the facial nerve. 



