Cunningham's Text-book of anatomy (1914) (20817621275)

Title: Cunningham's Text-book of anatomy

Identifier: cunninghamstextb00cunn (find matches)

Year: 1914 (1910s)

Authors: Cunningham, D. J. (Daniel John), 1850-1909; Robinson, Arthur, b. 1862, ed

Subjects: Anatomy

Publisher: New York, W. Wood

Contributing Library: Columbia University Libraries

Digitizing Sponsor: Open Knowledge Commons

Text Appearing Before Image:

12S0 THE UEINO-GENITAL SYSTEM. Urinary bladder Symphysis pubis Corpus cavernosuni penis Corpus cavernosuni urethras' Bulbo-cavernosus-jH; muscle Rectum Internal sphincter ani opening lies on a level with the upper margin of the symphysis pubis, and the openings of the ureters lie almost on a level with the plane of the pelvic brim. The obliterated portions of the umbilical arteries are more intimately related to the bladder in the foetus and child than in the adult, and lie close against its sides as they pass upwards towards the umbilicus (Fig. 999). Peritoneal Relations and Connexions of the Bladder.—We have already seen that the superior surface of the empty bladder is covered by peri- t o n e u m, which leaves it along the lateral border on each side to reach the pelvic wall at about the level of the arcus ten- dineus or white line of the pelvic fascia. To this peritoneal -Inaircaanaiphincterani reflection the term External sphincter ani lateral false (or peri- toneal) ligament is often applied. The lateral ligaments of opposite sides are continuous in front at the bladder apex, where the periton- eum is conducted over the fibrous cord of the urachus to reach the anterior abdominal wall, forming the so- called superior false (or peritoneal) liga- ment. When the bladder is empty the level of this External sphincter ani anterior reflection lies just behind, or just below, the upper margin of the symphysis pubis. When the bladder becomes filled the level of the peri- toneal reflection forming the superior false ligament is raised upwards, and may reach a point two inches, or more, above the upper margin of the symphysis pubis. Similarly, the line along which the lateral peritoneal ligament reaches the pelvic wall is also carried upwards in distension of the bladder, and may reach the level of the ductus deferens and of the obliterated umbilical artery. When the bladder is empty the peritoneum is carried downwards upon the side wall of the pelvis as low as the lateral border of the organ, and lines a shallow depression which receives the name of paravesical fossa. This peritoneal fossa lies below the level of the obturator peritoneal fossa (p. 1269), from which it is separated by the ductus deferens. As the bladder fills, the peritoneum is raised off this part of the pelvic wall, and certain structures, such as the obturator vessels and nerve

Text Appearing After Image:

Urinary bladder p—s Symphysis pubis Vagi Urethra Carina urethralis-—r- Labium minus ;\ Rectum ternal sphincter ani (-External sphincter ani Anal canal Fig. 998.—Median Section through the Pelvis of newly born Child, A, Male, and B, Female.

Cunninghams Lehrbuch der Anatomie Buchillustrationen anatomischer Atlas Anatomie Bilder aus dem Internetarchiv

1914

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