A Epididymal branches Rami epididymales

Branches to the epididymis.

3 Ovarian artery. A. ovarica. It arises from the aorta at the level of L2 and passes to the ovary within its suspensory ligament. It anastomoses with the uterine artery. C

4 Ureteric branches. Rami ureterici. Small branches to the ureter. C

4a Tubal branches. Rami tubarii (tubales). Branches that supply the infundibulum of the uterine tube. Theyanastomose with the uterine artry. See page 225 C

5 BIFURCATION OF AORTA. Bifurcatio aortae. It occurs in front of L4, thus directly below the umbilicus. C

6 COMMON ILIAC ARTERY. A. iliaca communis. It extends from the bifurcation of the descending aorta at L4 to its division into the internal and external iliac arteries in front of the sacroiliac joint. It gives off only insignificant branches. C

7 Internal iliac artery. A. iliaca interna. It begins at the division of the common iliac artery, passes into the lesser pelvis and reaches as far as the upper margin of the greater sciatic foramen. Its branches vary greatly. C

8 Iliolumbar artery. A. iliolumbalis. It passes beneath the psoas muscle and the internal iliac artery and into the iliac fossa. C

9 Lumbar branch. Ramus lumbalis. Branch leading into the psoas and quadratus lumborum muscles. C

10 Spinal branch. Ramus spinalis. Branch passing between the sacrum and L5 to enter the vertebral canal. C

11 Iliac branch. Ramus iliacus. Branch passing to the iliacus muscle in the ilac fossa; it lies parallel to the pelvis and anastomoses with the deep circumflex iliac artery. C

12 Lateral sacral arteries. Aa. sacrales laterales. Arteries passing downward lateral to the medial sacral artery. They can also arise from the superior gluteal artery. C

13 Spinal branches. Rami spinales. Arteries traversing the pelvic sacral foramina into the sacral canal. C

14 Obturator artery. A. obturatoria. It courses in the lateral wall of the pelvis and passes through the obturator foramen to supply the adductor muscles. B C

15 Pubic branch. Ramus pubicus. It anastomoses with the obturator branch of the inferior epigastric artery [[corona mortis]]. C

16 Acetabular branch. Ramus acetabularis. It passes through the acetabular notch to the ligament for the head of the femur. B

17 Anterior branch. Ramus anterior. Located on the adductor brevis; it anastomoses with the medial circumflex femoral artery. B

18 Posterior branch. Ramus posterior. It is located beneath the adductor brevis. B

19 Superior gluteal artery. A. glutealis superior. It traverses the greater sciatic foramen above the piriformis [[suprapiriform foramen]] to enter the gluteal region. A C

20 Superficial branch. Ramus superficialis. It lies between the gluteus maximus and medius and anastomoses with the inferior gluteal artery. A

21 Deep branch. Ramus profundus. It lies between the gluteus medius and minimus. A

22 Superior branch. Ramus superior. It runs along the upper margin of the gluteus minimus as far as the tensor fasciae latae. A

23 Inferior branch. Ramus inferior. It courses in the gluteus medius as far as the greater trochanter. A

24 Inferior gluteal artery. A. glutealis inferior. Emerges through the greater sciatic foramen below the piriformis muscle [[infrapiriform foramen]]; its branches are distributed beneath the gluteus maximus. They anastomose with the superior gluteal, obturator and circumflex femoral arteries. A C

25 Accompanying artery of sciatic nerve (sciatic artery). A. comitans n. ischiadici (sciatici). Phylogenetically speaking, the major artery of the leg. It accompanies and supplies the sciatic nerve and anastomoses with the medial circumflex femoral artery and perforating branches. A C

26 Umbilical artery. A. umbilicalis. First inferior branch ofthe internal iliac artery. After birth, it becomes obliterated beyond the exit of the superior vesical arteries. C

26 a Patent part. Pars patens. Portion of the fetal umbilical artery which does not become obliterated postnatally. It gives off the vessels listed below.

27 Artery ofductus deferens. A. ductus deferentis. It descends in the pelvis up to the base of the bladder. From there downward, it accompanies the ductus deferens to eventually anastomose with the testicular artery. C

28 Ureteric branches. Rami ureterici. Three branches that supply the ureter. C

29 Superior vesical arteries. Aa. vesicales superiores. Arteries to the upper and middle segments of the urinary bladder. C

29 a Occluded part. Pars occlusa. Portion of the fetal umbilical artery which becomes obliterated postnatally and forms the medial umbilical ligament.

30 Medial umbilical ligament. Ligamentum umbilicale mediale [[laterale]]. Fibrous cord remnant of the umbilical artery occupying the medial umbilical fold. C

1 Inferior vesical artery. A. vesicalis inferior. It supplies the inferior part of the urinary bladder and, in males, the prostate and seminal vesicle. A

1a Prostatic branches. Rami prostatici. Branches that supply the prostate and seminal vesicle.

2 Uterine artery. A. uterina. It corresponds to the artery of the ductus deferens. It passes to the cervix within the base of the broad ligament and very tortuously ascends lateral to the uterus. A C

2 a Helicine branches. Rami helicini. Corkscrewlike, coiled terminal branches of the uterine artery. C

3 Vaginal branches (azygos arteries of vagina). Rami vaginales (aa. azygoi vaginae). Branches to the cervix that anastomose with vessels on the oposite side to supply the upper part of the vagina. A C

4 Ovarian branch. Ramus ovaricus. It runs along the ovarian ligament proper and through the me-sovarium to the ovary. It anastomoses with the ovarian artery and the tubal branch of the uterine artery. C

5 Tubal branch. Ramus tubarius (tubalis). It runs in the mesosalpinx of the tube to the point where it anastomoses with the ovarian artery. C

6 Vaginal artery. A. vaginalis. It arises directly from the internal iliac artery. A

7 Middle rectal artery. A. rectalis media. It crosses the floor of the pelvis to the rectum and supplies the retal muscles. A E

7a Vaginal branches. [Rami vaginales]. Branches to the lower part of the vagina. A

8 Internal pudenal artery. A. pudenda interna. It passes through the greater sciatic foramen [[in-frapiriform]] from the pelvis and through the lesser sciatic foramen to the lateral wall of the ischiorectal fossa. A D E

9 Inferior rectal artery. A. rectalis inferior. It passes transversely through the ischiorectal fossa and supplies both sphincters as well as the skin below the anal valves. D E

10 Perineal artery. A. perinealis. It arises at the posterior margin of the urogenital diaphragm and supplies the bulbospongiosus and ischio- 29 cavernosus muscles. D E

11 Posterior scrotal branches. Rami scrotales posteriores. Branches passing to the scrotum. E

12 Posterior labial branches. Rami labiales posteriores. Branches that extend to the labium majus. D

13 Urethral artery. A. urethralis. It penetrates the corpus spongiosum at the junction of the crura of the penis and travels as far as the glans. It anastomoses with the dorsal and deep arteries of the penis. E

14 Artery of bulb of penis. A. bulbi penis. Besides the bulb of the penis, it also supplies the deep transversus perinei muscle and the bulbo-urethral gland. E

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