Inaugural Medical Dissertation on Blind and Open Hemorrhoids

V. The other major Branch of the trunk of the Great Artery devoted to the lower belly (which, to be sure, accompanies the Vena Cava, just as the former accompanies the gate), besides smaller little arteries transmitted to the spinal marrow, produces four still larger arteries, namely the Emulgents or renal [arteries], spermatic, lumbar, and iliac [arteries]. From these Iliacs, and their branches, partly internal, partly external, other arteries arise, namely the Hypogastric again, muscular, epigastric, and so-called pudendal [arteries]. The Hypogastric, besides the fact that it irrigates the neck of the urinary bladder, the fundus and neck of the womb, and also the male penis, extends also with a certain little branch to the rim of the rectum, and constitutes the external Hemorrhoidal [artery] there, devoted to the uses just enumerated. Whoever desires to know more about these, let him approach the chiefs of modern anatomists: the illustrious star of Denmark, Thomas Bartholinus, in Anatom. refor. lib. 1. on veins, chap. 4. p. m. 426. as also the notable glory of England, Nathanael Highmorus, in anacephalaeos. on the circulation of blood, fol. 255. and, most clearly of all on this matter, the immortal Light of this Salana [University] of ours, Dr. Guerner. Rolfincius, in Dissert. Anatomic. Lib. V. chap. 16. 20. 27. 28. pag. 882. et seq., and Lib. VI. chap. 25. 27. 28. p. 1155. et seqq.

VI. And these [things] will, I think, sufficiently lay bare the nature of Hemorrhoids, or hemorrhoidal vessels: from which we now, without any trouble, gather the preternatural constitution of these vessels, insofar as will suffice for eliciting the Subject. Namely, the Arteries extended from the inferior Mesenteric and the iliac hypogastric to the anus are to be accused both in the open and overly flowing [cases], as well as in the blind and swelling ones. Yet we do not wish to deny that sometimes, in great struggles of nature, when the course of the blood is changed or at least perturbed, superfluous Humors are also evacuated in the hemorrhoidal flow through these closely adjacent Veins. On which one should confer more fully Highmor. Disquisit. anatom. Lib. 1. part. 2. chap. 6. fol. 35. just as it sometimes happens in the uterine veins: confer Nob. Mr. Dr. Rolf. l. c. lib. 6. chap. 29. fol. 1181. and Epitom. c. l. p. 326.