Part 11. m t/je C^EA^io]^. 271 



fo foon as the Windpipe enters the Lungs, its 

 Cartilages are no longer deficient, but perfect 

 Circles or Rings, becaufe there was no necefiity 

 they fhould be lb, but it was more convenient 

 they {hould be entire. Lajily^ For the various 

 Modulation of the Voice, the upper end of the 

 Windpipe is endu*d with feveral Cartilages and 

 Mufcles, to contrad: or dilate it, as we would 

 haye our Voice flat or fharp ; and moreover, the 

 whole is continually moiften'd with a glutinous 

 Humour, iffuing out of the fmall Glandules that 

 are upon its inner Coat, to fence it againfl the 

 (harp Air received in, or Breath forc'd out ; yet 

 is it of quick and tender Senfe, that it may be 

 eafily provoked to caft out by coughing whatever 

 may fall into it from without, or be difcharg'd 

 into it from within. 



It is alfo very remarkable which Cafpar Bar^- 

 tholine hath obferv'd in the Gullet, that where it 

 perforateth the Midriff, the carneous Fibres of 

 that mufcular Part are infled:ed and arcuate, as 

 it were a Spinier embracing and clofing it fafl:^ 

 by a great Providence of Nature, left in the per- 

 petual motion of the faid Midriff the upper Ori- 

 fice of the Stomach fhould gape, and caft out the 

 Viduals as faft as it receiv'd it. 



Seventhly, The Heart , which hath been alvvays 



efteem'd, and really is one of tlie principal Parts 



of the Body, the primum vivem, & ultimum mo- 



riens^ the firft Part that quickens, and the laft 



I that 



