Chirurgical Observations and Cases Volume 2 (Paperback)

This historic book may have numerous typos and missing text. Purchasers can download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1773 Excerpt: ... upon the vascular coat, and cover the whole bladder: this may be called tranfuerfalis, By the ac-4fcion of the mufculus pilearis, tHe fandm of the bladder will be brought towards its cervix, while the tranfuerjalis vejio serves to lessen its diameter: by the joint actions of these muscles, the urine it is evident will be expelled. See PI. II, &iB, #x iit J-' ' f-ft ihis"'ci j7.'of, hJi But we frequently observe, that some, in evacuating their urine, bend their bodies forward, in order to give the musctf-lar coats a greater power to empty the bladder: this remark made me recoiled that in many persons the pyramidal muscles of the abdomen are wanting: now should this be the cafe in those persons who are obliged to bend their bodies forward to facilitate the expulsion' of the urine, it will confirm the uses assigned to the musculi pyramida/es, by that justly celebrated and accurate anatomist Dr. Nicholls; for the ligaments, which were formerly the arachus and umbilical arteries, terminate in the navel; therefore in an erect posture they will abridge the pilearis of its office of making the fundus approach the cervix j to relax these ligaments, the body must be bent j the pytamidales we know arise from the qffapubis, and their tendons are inserted into the urnbUi&jts'; therefore when they act, they must pull the navel down towards the ofj'a pubist and will relax the suspensory ligaments, --and give the pilearis its full-'. '-i-t.-: power power to act. The use assigned by those who think these muscles assist the expulsion of the urine by their pressing on the bladder is inconsistent with anatomy and mechanics. It is a known fact, that a stone in the bladder generally falls down towards its neck; and from the thinness of the sides forms itself a ...