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It is classically described that there are three sites in the ureter where a kidney stone will commonly become stuck: where the ureter meets the renal pelvis; where the iliac blood vessels cross the ureters; and where the ureters enter the urinary bladder, [9] however a retrospective case study, which is a primary source, of where stones lodged ...
Within the spermatic cord, the vas deferens is situated posterior (and parallel to) the vessels of the spermatic cord. [3]: 1297 The vas deferens traverses the inguinal canal to reach the pelvic cavity; it enters the pelvic cavity lateral to the inferior epigastric vessels. At the deep inguinal ring, the vas deferens diverges from the ...
The external iliac vein is crossed by the ureter and internal iliac artery which both extend towards the middle. In males it is crossed by the vas deferens and in females the round ligament and ovarian vessels cross it. Psoas major lies to its side, except where the artery intervenes. [4] The external iliac vein may have one valve, but often ...
In the human adult, the ureters are usually 25–30 cm (10–12 in) long. In humans, the ureters arise from the renal pelvis on the medial aspect of each kidney before descending towards the bladder on the front of the psoas major muscle. The ureters cross the pelvic brim near the bifurcation of the iliac arteries (which they run over).
The superior vesical artery comes off of the internal iliac artery and sometimes the umbilical artery. [2] The inferior vesical artery comes off of the internal iliac artery. [3] [4] The inferior vesical artery is a pelvic branch of the internal iliac artery in men; and in women it branches from the vaginal artery. [5]
[further explanation needed] The superior vesical artery is a branch of the internal iliac artery. It provides blood supply to various structures in the pelvis, particularly to the bladder. In terms of distribution, the superior vesical artery typically supplies the upper part of the bladder, including the dome and the superior surface.
Dogs have ear mobility that allows them to rapidly pinpoint the exact location of a sound. Eighteen or more muscles can tilt, rotate, raise, or lower a dog's ear. A dog can identify a sound's location much faster than a human can, as well as hear sounds at four times the distance. [41] Dogs can lose their hearing from age or an ear infection. [42]
The lengths of the common iliac and internal iliac arteries bear an inverse proportion to each other, the internal iliac artery being long when the common iliac is short, and vice versa. The place of division of the internal iliac artery varies between the upper margin of the sacrum and the upper border of the greater sciatic foramen .