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CHAP. XXX. Of the Bladder.
* 1.1THe Bladder is of the same substance, that the Ureters, that is, nervous, that so it may be the more easily dilated.
It is of a large proportion, in some bigger, in some less, according to the difference of age,* 1.2 and habit of body. It is of a round figure, and, as it were, Pyramidal.
* 1.3It is composed of two coats, one proper, which is very thick and strong, composed of the three sort of fibers, that is, in the inner side of the direct; without of the transverse; and in the midst of the oblique. The other common coat coming from the Peritonaeum, hath veins and arteries on each side one, from the Hypogastrick vessels above the Holy-bone; also it hath nerves on each side from the sixth conjugation mixt with the nerves of the Holy-bone. For these nerves descend from the brain even to the end of the Holy-bone.
It is but one, and that situate in men in the lower belly upon the right gut, and below the share-bone; but in women between the Womb and that bone, to which it cleaves with his mem∣branous ligaments, as it doth to the Yard by its neck, and to the right gut by its common coat and proper vessels. It is of a cold and dry temper.
- AB, 1, 2, 3, 4, 5, 7, 9, The two bodies which make the Yard.
- CC, 2, 3, The place where these two bodies do first arise.
- D, 1, 2, 3, 4, 5, 7, 9, The Nut of the Yard, called Glans penis.
- EE, 4, 5, The fungous and red substance of the bodies of the Yard.
- F, 4, 5, The mutual connexion of the bodies of the Yard, and the nervous outward substance of the same, compassing round about the former fungous sub∣stance.
- G, 1, 2, 3, 4, 5, 7, 9. The passage of the Urine, or common pipe, run∣ning under the Yard all along his length.
- H, I, 1, 2, The first pair of Muscles of the Yard, which in the first figure do yet grow to it, but in the second they hang from their original.
- K, L, 1, 2, The second pair of Muscles of the Yard, in the first figure, growing; in the second, hanging from their insertion.
- M, 1, 2, The Sphincter of the right Gut.
- N, 3, 7, 8, 9, The round Sphincter-Muscle of the bladder.
- OO, a Membrane which is over the holes of the share-bone.
- P, 2. A round Li∣gament from the meeting of the share-bones on the head of the thigh.
- Q, 3, 7, 8. The body of the bladder.
- RR, 3, 7, The Prostatae, which into seed when it is perfectly laboured, is led.
- SS, 3, 8, Portions of the Ureters.
- TT*3, Portions of the vessels, which lead down the seed.
- VV, 7, 8, The umbilical arteries.
- X, 7, 8, The ligament of the bladder called Urachus.
- Y, 7, 8, The navil or umbilicus.
- Z, 7, 8, The um∣bilical vein.
- aa, 7, The vein and artery of the yard.
- b, 5, The artery distributed through the body of the Yard.
* 1.4The use and action thereof is by the fibers continually to draw the urine, and contain it as long as need requires, and then to expell it by the neck, partly by compression either of it self, or ra∣ther to the muscles of the Epigastrium and midriff; because this motion, seeing it is voluntary, can∣not be performed unless by a muscle which the bladder wants; partly by the dilatation and relax∣ation of the Sphincter-muscle composed of transverse fibers,* 1.5 like the sphincter of the fundament, after the same manner to shut up the orifice of the bladder, that the urine flow not out against our will. But the bladder, as it fils, is dilated; but as it is emptied, it is contracted like a purse. You may easily observe this Muscle in a Sow's bladder: it is stretched from the orifice of the bladder, and beginning of the urinary passage even to the privities, in women; but in men it is termi∣nated