Dissimilar parts are those which we call organical, or instrumental, and they be inward or outward. The chiefest outward parts are situate forward or backward:—forward, the crown and foretop of the head, skull, face, forehead, temples, chin, eyes, ears, nose, &c., neck, breast, chest, upper and lower part of the belly, hypocondries, navel, groin, flank, &c.; backward, the hinder part of the head, back, shoulders, sides, loins, hipbones, os sacrum, buttocks, &c. Or joints, arms, hands, feet, legs, thighs, knees, &c. Or common to both, which, because they are obvious and well known, I have carelessly repeated, eaque praecipua et grandiora tantum; quod reliquum ex libris de anima qui volet, accipiat. Inward organical parts, which cannot be seen, are divers in number, and have several names, functions, and divisions; but that of [960]Laurentius is most notable, into noble or ignoble parts. Of the noble there be three principal parts, to which all the rest belong, and whom they serve—brain, heart, liver; according to whose site, three regions, or a threefold division, is made of the whole body. As first of the head, in which the animal organs are contained, and brain itself, which by his nerves give sense and motion to the rest, and is, as it were, a privy counsellor and chancellor to the heart. The second region is the chest, or middle belly, in which the heart as king keeps his court, and by his arteries communicates life to the whole body. The third region is the lower belly, in which the liver resides as a Legat a latere, with the rest of those natural organs, serving for concoction, nourishment, expelling of excrements. This lower region is distinguished from the upper by the midriff, or diaphragma, and is subdivided again by [961]some into three concavities or regions, upper, middle, and lower. The upper of the hypocondries, in whose right side is the liver, the left the spleen; from which is denominated hypochondriacal melancholy. The second of the navel and flanks, divided from the first by the rim. The last of the water course, which is again subdivided into three other parts. The Arabians make two parts of this region, Epigastrium and Hypogastrium, upper or lower. Epigastrium they call _Mirach_, from whence comes Mirachialis Melancholia, sometimes mentioned of them. Of these several regions I will treat in brief apart; and first of the third region, in which the natural organs are contained. _De Anima.—The Lower Region, Natural Organs_.] But you that are readers in the meantime, Suppose you were now brought into some sacred temple, or majestical palace (as [962]Melancthon saith), to behold not the matter only, but the singular art, workmanship, and counsel of this our great Creator. And it is a pleasant and profitable speculation, if it be considered aright. The parts of this region, which present themselves to your consideration and view, are such as serve to nutrition or generation. Those of nutrition serve to the first or second concoction; as the oesophagus or gullet, which brings meat and drink into the stomach. The ventricle or stomach, which is seated in the midst of that part of the belly beneath the midriff, the kitchen, as it were, of the first concoction, and which turns our meat into chylus. It hath two mouths, one above, another beneath. The upper is sometimes taken for the stomach itself; the lower and nether door (as Wecker calls it) is named Pylorus. This stomach is sustained by a large kell or caul, called omentum; which some will have the same with peritoneum, or rim of the belly. From the stomach to the very fundament are produced the guts, or intestina, which serve a little to alter and distribute the chylus, and convey away the excrements. They are divided into small and great, by reason of their site and substance, slender or thicker: the slender is duodenum, or whole gut, which is next to the stomach, some twelve inches long, saith [963] Fuschius. Jejunum, or empty gut, continuate to the other, which hath many mesaraic veins annexed to it, which take part of the chylus to the liver from it. Ilion the third, which consists of many crinkles, which serves with the rest to receive, keep, and distribute the chylus from the stomach. The thick guts are three, the blind gut, colon, and right gut. The blind is a thick and short gut, having one mouth, in which the ilium and colon meet: it receives the excrements, and conveys them to the colon. This colon hath many windings, that the excrements pass not away too fast: the right gut is straight, and conveys the excrements to the fundament, whose lower part is bound up with certain muscles called sphincters, that the excrements may be the better contained, until such time as a man be willing to go to the stool.