Three; that is to say, the Duodenum, the Jejunum, and the Ileon.
How many thick Guts are there?
Three likewise; viz. the Cœcum, the Colon, and the Rectum.
Why are some of them call'd thin Guts, and others thick?
Because the thin are smaller, being appointed only to transport the Chyle out of the Stomach into the Reserver; whereas the thick are more large and stronger, serving to carry forth the gross Excrements out of the Belly.
Are the six Guts of an equal length?
No, the Duodenum, which is the first of the thin Guts, is only twelve Fingers breadth long. The Jejunum, being the second, so call'd because always empty, is five Foot long: The third is nam'd Ileon, by reason of its great Turnings which oblige it to pass to the Os Ilion, where it produceth a Rupture; it extends it self almost twenty Foot in length.
The first of the thick Guts, known by the Name of Cœcum, is very short, and properly only an Appendix or Bag of a Finger's length. That which follows is the Colon, being the largest of all, and full of little Cells, which are fill'd sometimes with Wind and other Matters that excite the Pains of the Colick. It encompasseth the thin Guts, in passing from the top to the bottom of the Belly, by the means of its great Circumvolutions, and is from eight to nine Foot long. The last is the Rectum or
streight Gut, so nam'd, because it goes directly to the Fundament: It is no longer than ones Hand, but it is fleshy, and situated upon the Os Sacrum, and the Coccyx or Rump-Bone.
What is the Peristaltick Motion of the Guts?