74 



TOPOGRAPHICAL ANATOMY OF THE 



into the middle ear at the tympanic ostium (ostium tubffi tympanicum). 

 The greater part of the tube possesses a cartilaginous skeleton (pars 



-z^ 



cartilaginea) that increases in size from its connection with the temporal 

 bone, medial to its muscular process, to its termination in the pharynx 



