5. Pelvic and Perineal Angiolody Flashcards
What are the important branches off of the abdominal aorta?
-
Testicular A (in M; goes through inguinal canal -> scortum -> spermatic cord -> supply testis)
* or Ovarian A (in F: pelvis though suspensory L. of the ovary -> branches into ovarian and tubal branches.)
-
Testicular A (in M; goes through inguinal canal -> scortum -> spermatic cord -> supply testis)
-
Inferior Mesenteric A.
* becomes the Superior Rectal A, which supplies the superior part of the rectum and anastomses with [middle rectal a.] and [inferior rectal a.]
-
Inferior Mesenteric A.
- Median Sacral A.
- Then bifurcates into the Common iliac A.
The common iliac a. then branches into what?
- Internal iliac a.
- External iliac a.
External iliac A. branches
1. Inferior epigastric A.
2. Deep circumflex iliac A.
- Becomes femoral A. after passing inguinal L.
- Superior epigastric A.
- Superficial circumflex iliac A.
-
External pudendal A
-
Superficial and deep external pudendal A.
- Anterior scotal A (M)
- Anterior labial A (F).
-
Superficial and deep external pudendal A.
Internal iliac A. enters the _______
and supplies what?
- Enters pelvic cavity
- Supplies [pelvic organs, gluteal muscles and perineum]
What does the internal iliac A. divide into?
- Anterior Division
- Posterior Division
Internal Iliac A. divides into the
- anterior division of the internal iliac A.
- posterior division of the internal iliac A.
What are the branches of the posterior division of the internal iliac A.
3 branches: ILS
-
1. Iliolumbar A
- Enter iliac fossa and branches into
- iliac branch -> runs around iliac crest and supplies ilium and iliacus m.
- lumbar branch -> supplies psoas major m. and quadratus lumborum m.
- Enter iliac fossa and branches into
-
2. Lateral Sacral A.
- NTR Anterior sacral formamina -> Supplies piriformis m., structures in the sacral canal and erector spinae m.
-
3. Superior gluteal A.
- Exits above piriformis m. in the greater sciatic foramen -> supplies gluteal ms, TFL, and piriformis m.
Internal Iliac A. divides into the
- anterior division of the internal iliac A.
- posterior division of the internal iliac A.
What are the branches of the anterior division of the internal iliac A in F.
- Umbilical A.
- Superior vesical A -> [bladder]
- Umbilical A will become the Medial Umbilical L.
- Oburator A
- Leaves pelvic cavity via obturator canal (foramen)
- Supply Pelvic muscles, Ilium B., Femoral Head, muscles of Medial Thigh)
- Uterine A. (F) runs in broad L of the uterus OVER the ureter.
- Uterine A. branches into
- Ascending Branch of the Uterine A. -> [uterus]
- Vaginal branch of the Uterine A. -> [vagina and cervix]
- Ovarian branch of the Uterine A. -> [ovaries]
- Tubal branches of the Uterine A. -> [uterine tubes]
- Vaginal A -> [vagina]
- Middle rectal A -> [inferior rectum and anal canal]
2 terminal branches: [Inferior gluteal A and internal pudendal A.
- Inferior gluteal A-> exits via greater sciatic foramen (usually. more posterior)
- Coccygeus M.,
- the 3 Levator Ani muscles,
- Piriformis M,
- Quadratus Femoris M.
- upper most posterior Thigh muscles
- Gluteus Maximus M.
- Sciatic N.
- Internal pudendal A -> exits greater sciatic foramen -> disappears as it goes over the sacrospinous L. -> lesser sciatic foramen to go into the perineal region -> and into the pudendal canal
- A. Inferior rectal A. -> supplies [distal anal canal]
- B . Perineal A. -> exits Pudendal Canal enters Superficial Perineal Space
- Branches into [Labial A] (F).
- C. Artery of Vestibule of vagina (F)- supplies [supplies vaginal vestibule and greater vestibular gland]
- SPLIT INTO TERMINAL BRANCHES
- Deep A. of Clitoris (F) -> supplies [clit]
- Dorsal A of clitoris in (F). -> supplies [skin over clit and into the erectile tissue]
In women, the inferior vesical a. is replaced by what?
Uterine A.
Inferior vesical A. in M= ________ in F.
Uterine A.
Vaginal A. in F = __________ in M.
Artery of the Ductus Deferens
Internal Iliac A. divides into the
anterior division of the internal iliac A.
posterior division of the internal iliac A.
What are the branches of the anterior division of the internal iliac A in M.
- Umbilical A.
- Superior vesical A -> [superior bladder]
- Umbilical A will become the Medial Umbilical L.
- Oburator A
- Leaves pelvic cavity via obturator canal (foramen)
- Supplies: pelvic muscles, Ilium Bone, Femoral Head, muscles of Medial Thigh)
- Inferior vesical A -> supplies
- seminal vesicles,
- prostate,
- vas deferens,
- ureters
- posterior aspect of urinary bladder]
- Middle rectal A- > supplies
- inferior Rectum
- Anal Canal
- Seminal Vesicles in Males]
Terminate into
[Inferior gluteal A and internal pudendal A], which both exit G.S.F
- Inferior gluteal A-> exits via greater sciatic foramen and supplies the
- Coccygeus M.,
- the 3 Levator Ani muscles,
- Piriformis M,
- Quadratus Femoris M.
- upper most posterior Thigh muscles
- Gluteus Maximus M.
- Sciatic N.
- Internal pudendal A -> exits greater sciatic foramen -> disappears as it goes under the sacrospinous L. -> lesser sciatic foramen to go into the perineal region -> and into the pudendal canal
- A. Inferior rectal A -> supplies distal anal canal.
- Perineal A.
- Posterior scrotal A. (M).
- Artery of bulb of penis (M) -> supplies bulb of penis, bulbourethral gland
- TERMINATE INTO :
- Deep A. of Penis (M) -> supplies [corposa cavernosa]
- Dorsal A of Penis (M) -> goes through suspensory L and supplies [skin of penis and erectile tissue]
Artery of Vestibule of Vagina in F = ___________ M
Artery of Bulb of Penis
Pampiniform venous plexes in males and females.
- In males, it is located inside the spermatic cord and drains into the testicular vein.
- In females, it is located inside the suspensory L of the ovary and drains to the ovarian vein.
What is the internal rectal venous plexus?
(superior most anastomosis of the Superior, Middle and Inferior Rectal V.)
What is the external rectal venous plexus?
Located near the anus and inferior most anastomosis of the Superior, Middle and Inferior Rectal V.)
