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CHAP. I. The Division or partition of Man's Body.
BY reason the partition of Man's body can hardly be understood, if the distinction of the proper faculties of the soul be not understood, for whose cause the body enjoys that form (which we see) and division into divers Instruments; Therefore I thought good in few words to touch that distinction of the faculties of the soul, for the better understanding of the partition of the body,* 1.1 which we intend. Wherefore the soul, the perfection of the body, and begin∣ning of all its functions, is commonly distinguished, and that in the first and general division, into three faculties, which are, the Animal, Vital, and Natural. But the Animal is divided into the principal, sensitive, and motive; Again, the Principal is distinguished into the imaginative, rea∣sonable, and memorative: And the Sensitive into seeing, hearing, smelling, tasting, and touch∣ing: But the Motive into progressive and apprehensive. And the Vital is divided into the dila∣tive and contractive faculty of the heart and arteries, which we know or understand by the pul∣sifick faculty. But the Natural is parted into the nutritive, auctive, and generative faculties; which three perform their parts by the help and ministry of five other faculties, which are, the attractive, retentive, concoctive, assimilative, and expulsive.
* 1.2After the self-same manner, the organ or instrument of the soul, to wit, Man's body, at the first division is distinguished into three parts, which from their office they call Animal, Vital, and Natural. These again, according to the subdivision of the subalternal faculties, are divided par∣ticularly into other parts; so that any one may know the organ of each faculty, by the property of the function. For, while other Anatomists divide Man's body into four universal and chief parts, they distinguish from the three first, those which they call the Extremities; neither do they teach, to what rank of the three prime parts each Extremity should be reduced. From whence many difficulties happen in reading the writing of Anatomists; for shunning whereof, we will prosecute, as we have said, that distinction of man's body, which we have touched before.
* 1.3Wherefore, as we said before, man's body is divided into three principal and general parts, Animal, Vital, and Natural. By the Animal parts, we understand, not only the parts pertain∣ing to the head, which are bounded with the crown of the head, the coller-bones, and the first Vertelra of the breast, but also the extremities, because they are organs and instruments of the motive-faculty;* 1.4 Hippocrates seems to have confirmed the same, where he writes; Those who have a thick and great head, have also great bones, nerves, and limbs. And in another place he saith, those who have great heads, and, when they stoop, shew a long neck, such have all their parts large, but chiefly the Animal. Not for that Hippocrates would therefore have the head the beginning and cause of the magnitude and greatness of the bones and the rest of the mem∣bers; but that he might shew the equality, and private care, or government of Nature, being most just and exact in the fabrick of man's body, as, if she hath well framed the head, it should not be unlike that she idly or carelesly neglected the other parts which are less seen. I thought good to dilate this passage, lest any might abuse that authority of Hippocrates, and gather from thence, that not only the bones, membranes, ligaments, grisles, and all the other animal parts, but also the veins and arteries depend on the head as the original. But if any observe this our distinction of the parts of the body, he will understand, we have a far other meaning.
* 1.5By the Vital parts, we understand only the heart, arteries, lungs, wind-pipe, and other particles annexed to these. But by the Natural, we would have all those parts understood which are con∣tained in the whole compass of the Peritonaeum or Rim of the body, and the processes of the E∣rythroides, the second coat of the Testicles. For as much as belongs to all the other parts, which we call Containing; they must be reckoned in the number of the Animal, which notwithstanding, we must thus divide into principal, sensitive, and motive; and again, each of these in the manner following.* 1.6 For first, the principal is divided into the Imaginative, which is the first and upper part of the brain, with its two ventricles, and other annexed particles, into the Reasoning, which is a part of the brain, lying under the former, and (as it were) the top thereof with its third ven∣tricle; into the Memorative, which is the cerebellum or after-brain, with a ventricle hollowed in its substance. Secondly, the Sensitive is parted into the visive, which is in the eyes; the audi∣tive, in the ears; the smelling, in the nose; the tasting, in the tongue and palat; the tactive, or touching which is in the body, but most exquisite in the skin which invests the palms of the hands. Thirdly; the motive is divided into the progressive, which intimates the legs; and the comprehensive, which intimates the hands. Lastly, into simply-motive, which are three parts, called bellies,* 1.7 for the greatest part terminating and containing; for the vital, the instrument of the faculty of the heart, and dilatation of the arteries, are the direct or streight fibers, but of the constrictive the transverse; but the three kinds of fibers together, of the pulsifick: or, if you please, you may divide them into parts serving for respiration, as are the lungs, and weazon, and parts serving for vital motion, as are the heart and arteries, furnished with these fibers, which we formerly mentioned.* 1.8 The division of the natural parts remains, which is into the nourishing, auctive, and generative, which again, are distributed into attractive, universal, and particular; retentive, concoctive, distributive, assimilative, and expulsive. The attractive, as the gullet and upper orifice of the ventricle; the retentive, as the Pylorus, or lower passage of the stomach; the concoctive, as the body of the ventricle, or its inner coat; the distributive, as the three small