42 Thi Anatomy of a HOKSV.. Chap.1V. 



of the Head, viz. to the Eyes, the Palate of the Mouth, the 

 Nofc, but chiefly to the lower Jaw. The Temporal Muf- 

 cles, and Mufcles of the Face, and fome Branches which go 

 downwards, inoculating with the fixth Pair, conftitute the 

 Root or the iirft Trunk of the IntercoJlalPair, It is owing 

 to the feveral Branches and Inoculations of the Nerves 

 following, that there is fo great a Sympathy and Confent 

 among all thofe Parts where they take their Progrefs. 

 (j-r ^ J p^-^ The fixth Pair inoculate with the fifth, 

 ejix J tr. ^^^^^ ^^^^ ^^^^ palled fmgle through the 



lame Hole of the Skull, and been hid fome time under the 

 tDura Mater ; after which they fend back fome Branches, 

 which conftitute the Beginning of the Intercojlal Nerves. 

 Each of thefe are divided, near the Orbit of the Eye, into 

 two, one being fpent on that Mufcle of the Eye which 

 draws it outwards ; the other on that which is only proper 

 to Brutes, called ihtfeventh Mujcle, 



The feventh Pair are the Auditory Nerves. 

 Ihefe'uentb -pj^^fg -^^ ^ Ywimm Head take their Rife from 

 • under the Annular Proceiles of the Cerebel- 



lum^ but in a Horfe from the Sides of the oblong Marrow. 

 They have two Proceiles, one of which is fomewhat (oh^ 

 and is carried thro* the Hole of the Os petrofum into the 

 Cells of the Ears, which it cloaths with a very fine Mem- 

 brane, and by which the Sounds are conveyed into the 

 common Senfory ; the other is faid to conduce chiefly to 

 Motion, fending forth feveral Slips to the Tongue, Lips, 

 Mouth, and Nofe, aduating the outer Organs of the 

 Voice ; others taking their Courfe to the Mufcles of the 

 Forehead, and Eyelids, and fome to the Mufcles of the Ears, 

 aililling a Horfe in moving his Eyes and Ears, upon hearing 

 or ieeing any thing that is aftonifhing to him. 

 The Eizhth ^^^ eighth Pair is generally termed the 



Fair, ^^^ vagum^ or wandring Pair, becaufe they 



inoculate and keep up a Communicatioa 

 %vith the Branches of many other Nerves, and are diftri- 

 buted, not only to the Head, but alfo into many other Parts 

 of the Body, particularly to the Heart, the Lungs, and Sto- 

 mach, as alfo to all ihtViJcera in the lower Belly. 



The nlnfh Fair ^^^^ ^^^ ^^^^' reckon'd by Dr. Willis the 

 ninth and laft, which arife out of the Skull, 

 but by fome, to be only Branches of the fifth and fixti:^ 

 Pair, becaufe they take their Origin from fome of their 

 recurring Branches, lliis Pair has alfo feveral Inoculations, 



and 



