418 



PRACTICAL ANATOMY. 



thetic nerve. In the communications, then, between the pneumogastric and the 

 glosso-pharyngeal nerve, we see the connecting link between a mechanism 

 pumping air, under the direction of the vagus, and a territory to be constantly 



he B 1 ^ Pair of Nerves 



comprising the 

 9*. h or G I os so- pharyngeal 

 10V or Pneumogastnc, 

 . 1 1 l . h or Spinal Accessory. 



Terminal Brs 



, fivm Tetteri Com/undofAnntomij. 



IK;. 293. EIGHTH J'AIR UK CRANIAL NERVES. 



i. Jugular ganglion of ninth nerve. 2. Petrous ganglion of ninth nerVe. 3. Ganglion of the vagus root. 



4. Ganglion of the vagus trunk. 5. Medullary part of eleventh nerve. 6. Spinal part of eleventh 



nerve. 7. Superior cardiac branch joining cardiac of sympathetic. 8. Subclavian artery, mi right 



tide, arch of the aorta, on lefi side <>f the l><>dy. <>. Koramen magnum, receiving spinal par) of the 



spinal arct^-ory. IO. Jugular l.-iainrn , transmitting all tlircc nerves; also (ailed the foramen laeeium 



pdsterius. ii. Branches to hypoglossal, sympathetic, cervical nerves. 12. Olivary body (in broken 



line). 



ventilated the middle ear and Kustachian tube, a territory whose delicate 

 structures might be invparably (lania-cd, \vrre not the sensor)' sentinel, the 

 tympanic plexus, thnv i<> ri'L'.ul.itf the ingress and egress of air. And note, too, 



