Pelvic Vessels, Nerves, and Lymphatics Flashcards
What are the 3 major branches that come off the Abdominal Aorta that are relevant for the pelvis?
Common Iliac A.
Ovarian Aa.
Median (Middle) Sacral A.
The Common Iliac A. bifurcates into the external iliac A. and Internal Iliac A. at what level?
A. L3-L4
B. L4-L5
C. L5-S1
D. S1-S2
L5-S1
There are posterior and anterior divisions of the Internal Iliac A.. The Posterior Division consists of 3 arteries, while the Anterior Division has a lot more. What 3 arteries are part of the Internal Iliac A. posterior division?
Lateral Sacral A.
Iliolumbar A.
Superior Gluteal A.
What structures do the Lateral Sacral Aa. supply? (5)
Erector Spinae
Meniges
Piriformis M.
Scaral spinal roots
Skin on dorsal sacrum
Lateral Sacral Aa. Erects Minimal Performance with Sacral Roots and Skin
What structures are supplied by the Iliolumbar A. ? (4)
Cauda Equina
Psoas Major
Iliacus
Quadratus Lumborum
Iliolumbar A. has a high CeP IQ
What structures are supplied by the Superior Gluteal A.? (3)
Piriformis
Gluteal Muscles
Tensor Fascia Lata
What branches off the Posterior divisions of the internal iliac supply the piriformis?
A. Iliolumbar A. and Lateral Sacral Aa.
B. Lateral Sacral Aa. and Superior Gluteal A.
C. Superior Gluteal A. and Iliolumbar A.
D. All of posterior division branches supply the piriformis
Lateral Sacral Aa. and Superior Gluteal A.
What branch of the internal iliac posterior division enters through the anterior sacral foramina and exits through the posterior sacral foramina?
A. Lateral Sacral Aa.
B. Superior Gluteal A.
C. Iliolumbar A.
Lateral Sacral Aa.
What branch of the internal iliac posterior division is found between the obturator N. and lumbrosacral trunk posterior to the psoas major muscle?
A. Lateral Sacral Aa.
B. Superior Gluteal A.
C. Iliolumbar A.
Iliolumbar A.
What branch of the internal iliac posterior division iis the terminal branch and goes through the greater sciatic foramen superior to the piriformis M.?
A. Lateral Sacral Aa.
B. Superior Gluteal A.
C. Iliolumbar A.
Superior Gluteal A.
Which of the following arteries off the anterior division of the internal iliac supplies the bladder? (Select all that apply)
A. Umbilial A. and Superior Vesicular A.
B. Obturator A.
C. Inferior Vesicular A.
D. Middle REctal A.
E. Uterine A.
Umbilial A. and Superior Vesicular A.
Inferior Vesicular A.
NOTE: The Umbilical A. gets obliterated at birth
Which of the following arteries off the anterior division of the iliac artey is only found in males?
A. Uterine A.
B. Superior Vesicle A.
C. Inferior Vesicle A.
D. Obterator A.
Inferior Vesicle A.
NOTE: Uterine A. is only found in females
Select all of the following branches of the anterior division that supply the vagina.
A. Vaginal A.
B. Internal Pudendal A.
C. Inferior Vesicle A.
D. Umbilical A. and Superior Vesicle A.
E. Middle Rectal A.
F. Uterine A.
G. Inferior Gluteal A.
Vaginal A.
Internal Pudendal A.
Middle Rectal A.
Uterine A.
Select all of the branches of the anterior division that supply the prostate, seminal vesicle, and vas deferns.
A. Inferior Vesicle A.
B. Middle Rectal A.
C. Obterator A.
D. Internal Pudendal A.
E. Uterine A.
Inferior Vesicle A.
Middle Rectal A.
T/F: THe pelvic veins correspond to the branches of the internal iliac A.
True
Which of the following branches of the anterior division exits via the greater sciatic foramen and then loops around the ischial spine to enter the lesser sciatic foramen to enter the perineum?
A. Uterine A.
B. Middle REctal A.
C. Inferior REctal A.
D. Internal Pudendal A.
Internal Pudendal A.
What level does the internal iliac v. merge with the external iliac v. to form the common iliac vein–> IVC?
A. L3/L4
B. L4/L5
C. L5/S1
D. S1/S2
L4/L5
The pelvic venous plexus is associated with the pelvic viscera are drained by 3 veins. What are those three draining veins?
Internal Iliac V
Inferior Mesenteric V.
Lateral Sacral Vv
What pelvic vein anastomosis with the internal vertebral plexus that provides a collateral pathway to the IVC or SVC?
A. Lateral Sacral Vv.
B. Internal Iliac V.
C. Superior Rectal V.
D. Superior Gluteal Vv.
E. Testicular V.
Lateral Sacral Vv.
What two veins anastomos and provide a channel for metastisis of prostatic or ovarian cancer cells to migrate to the vertebral column or cranial cavity?
A. Interal Iliac V and Lateral Sacral Vv.
B. Superior Rectal V and Internal Venous plexus
C. Lateral Sacral Vv and Internal Venous plexus
D. Internal Venous plexus and Testicular Vv.
Lateral Sacral Vv and Internal Venous plexus
What pelvic vein is a tributary of the Inferior Mesenteric V.?
A. Superior REctal V.
B. Middle REctal V.
C. Inferior Rectal V.
D. Lateral Sacral Vv
Superior REctal V.
Which of the following nodes recieve lymph from the inguinal nodes and superior parts of the middle to anterior pelvic organs?
A. External Iliac LN
B. Internal Iliac LN
C. Sacral LN
D. Common Iliac LN
External Iliac LN
What nodes receive lymoh from pelvic viscera, deep perineum, and the guteal region?
A. External Iliac LN
B. Internal Iliac LN
C. Sacral LN
D. Common Iliac LN
Internal Iliac LN
What nodes receive lymph from posterior inferior pelvic viscera?
A. External Iliac LN
B. Internal Iliac LN
C. Sacral LN
D. Common Iliac LN
Sacral LN
THe common iliac LN receives lymph from the external and internal iliac LN as well as Sacral LN. But where does the common iliac LN drain to?
Lumbar Nodes
The pelvic structures are mainly innnervated by what 3 major nerve sets?
Sacral Spinal Nerves
Coccygeal Nerves
Pelvic Splanchnic N.
The sacral plexus is located on the posterolateral wall of the lesser pelvis, and it gives off branches that all exit through what structure?
A. Anterior Sacral Foramina
B. Posterior Sacral Foramina
C. Greater Sciatic Foramen
D. Lesser Sciatic Foramen
Greater Sciatic Foramen
What branch of the sacral plexus passes inferior to the piriformis m. to enter the gluteal region to sipply posterior thigh and enterire leg and foot?
A. Sciatic N. (L4-S3)
B. Pudendal N. (S2-S4)
C. Superior Gluteal N. (L4-S1)
D. Inferior Gluteal N. (L4-S2)
Sciatic N. (L4-S3)
What branch of the sacral plexus passes between the piriformis and coccygeus m. accompanied by the internal pudendal A.
A. Sciatic N. (L4-S3)
B. Pudendal N. (S2-S4)
C. Superior Gluteal N. (L4-S1)
D. Inferior Gluteal N. (L4-S2)
Pudendal N. (S2-S4)
What branch of the sacral plexus supplies the gluteus medius and minimus after passing the piriformis superiorly?
A. Sciatic N. (L4-S3)
B. Pudendal N. (S2-S4)
C. Superior Gluteal N. (L4-S1)
D. Inferior Gluteal N. (L4-S2)
Superior Gluteal N. (L4-S1)
NOTE: Inferior gluteal N. passes pinferior to the piriformis tp supply the glut max
What nerve can by found on the pelvic surface of the coccugeus muscle?
Coccygeal Plexus (S4-S5)
The Inferior hypogastric Plexus supplies sympathetic innervation to pelvic viscera, and gives off branches that form sub-plexuses on viscera. What subplexuses does it form that are relevant for both males and females?
Only males?
Only females?
Both: lateral rectum and inferolateral urinary bladder
Male: Prostate and seminal vesicle
Females: Cervix and LAteral Fornix
T/F: Pelvic Splanchnic nerves (S2-S4) supply parasympathetic innervation to the pelvic viscera and descending colon, sigmoid colon, rectum and distal anal canal
False; Pelvic Splanchnic nerves (S2-S4) supply parasympathetic innervation to the pelvic viscera and descending colon, sigmoid colon, rectum and proximal anal anal
What structure is in danger of being damaged during an oophorectomy when the ovarian A. is being ligated?
A. Ureter
B. Uterine A.
C. Urethra
D. None of the above
Ureter
NOTE: In a hysterectomy where the uterine A. is ligated, the ureter is also in danger
During childbirth, the fetal head might compress what nerve of the mother?
A. Pelvic Splanchnic N.
B. Obturator N.
C. Pudendendal N.
D. Femoral N.
E. Sacral PLexus
Sacral PLexus
During removal of a cancerous LN found in the lateral pelvic wall, what nerve could be severed leading to sensory loss on the medial thigh?
A. Pelvic Splanchnic N.
B. Obturator N.
C. Pudendendal N.
D. Femoral N.
E. Sacral PLexus
Obturator N.
T/F: Surgery on the prostate gland can destroy parasympathetic innervation from the S2-S4 pelvic splanchnic nn. thus affecting the patients ability to get an erection in the future
True
