It remains to take an Account of the Bowels viz. the Stomach, Mesentery, Liver, Spleen, Kidneys, Bladder, and Guts, together with the Parts appointed for Generation, which in Men
are the Spermatick Vessels, the Testicles, and the Penis; and in Women, the Spermatick Vessels, the Testicles or Ovaries, the Matrix, and its Vagina or Neck.
What is the Stomach?
It is the Receptacle of the Aliments or Food convey'd thither thro' the Oesophagus or Gullet, which is a Canal, or kind of streight Gut that reacheth from the Throat to the Mouth of the Stomach. The Stomach it self is situated immediately under the Diaphragm or Midriff, between the Liver and the Spleen, having two Orifices, whereof the Left is properly call'd Stomachus, or the Upper, and the Right (at its other Extremity) Pylorus, or the lower Orifice. Its Figure resembleth that of a Bag-Pipe, and the greater part of its Body lies toward the Left side. It is compos'd of three Membranes, viz. one Common, which it receives from the Peritonæum; and two Proper; the two uppermost being smooth, and the innermost altogether wrinkled.
What is the Pancreas or Sweet-bread?
It is a Fat Body, consisting of many Glandules wrapt up in the same Tunicle, being situated under the Pylorus or lower Orifice of the Stomach: It helps Digestion, and hath divers other uses; but its principal Office is to separate the serous Particles of the Blood, to be convey'd afterward into the Gut Duodenum, by a Canal or Passage, nam'd the Pancreatick. This Juice serves to cause the Chyle to ferment with the Choler, in order to remove the grosser Particles from those that ought to enter into the Lacteal Vessels.
Into how many sorts are the Guts distinguish'd?
There are two sorts, viz. the thin and the thick.
How many thin or small Guts are there?