Week 6 - Pelvic Masses Flashcards
What will the difference be, between touching the ureter and touching the uterine artery?
The ureter will vermiculate, the uterine artery will pulsate
The obturator membrane does not cover the whole of the obturator foramen. The bit that it does not cover forms what structure?
The obturator canal
What is the function of the obturator internus?
Lateral rotator of the hip
The obturator internus muscle has a fascial layer over the top of it which thickens where?
At the pudendal canal and the tendinous arch of levator ani
What muscle splits the greater sciatic foramen into two halves?
The piriformis
The majority of arteries of the pelvis and perineum arise from where?
The internal iliac artery
Where does the gonadal artery (testicular in male, ovarian in female) arise from?
L2 abdominal aorta
The superior rectal artery is a continuation of what artery?
Inferior mesenteric
What area of the body is supplied by the superior rectal artery?
The hindgut (i.e. sigmoid colon and rectum)
The median umbilical ligament is a remnant of what?
The umbilical artery
The inferior vesicle arteries are only present in which gender? In the other gender, what is this replaced by?
Only present in males - in females it is replaced by the vaginal artery
What artery (and its branches) is responsible for supplying most of the perineum?
Internal pudendal
At what spinal level does the common iliac artery divide?
L4
The inferior vesicle artery is present in males to supply what?
The base of the bladder, prostate and seminal vesicles
The inferior rectal artery come from?
The internal pudendal artery
Most branches of the male perineum are from the internal pudendal artery. This terminates as what two arteries?
The dorsal artery of the penis and the deep artery
Where does the anterior scrotal artery come from?
The external iliac artery
Which artery of the penis is the one which supplies the corpus cavernosa?
Deep artery of the penis
Which artery supplies the inferior bladder in females?
The vaginal artery
The uterine artery is females is a homologue of what artery in males?
Artery to vas deferens
An anastamosis occurs between the uterine artery and which other arteries?
The ovarian artery (superiorly) and the vaginal artery (inferiorly)
Veins of the pelvis and perineum drain mostly into where?
The internal iliac vein
If blood from the pelvis/perineum drained into the superior rectal vein, where would it go from there?
Into the hepatic portal system
If blood from the pelvis/perineum drained into the lateral sacral veins, where would it go from there?
The internal vertebral venous plexus
On the right hand side, the ureter usually always crosses which artery?
The external iliac
On the left hand side, the ureter is found more medial and often crosses which artery?
Common iliac
Superior pelvic viscera will drain to which lymph nodes?
External iliac
Explain how lymph from the external or internal iliac nodes will travel back to the venous system?
Common iliac, para-aortic, thoracic duct
Structures within the inferior pelvic viscera and the deep perineum will drain to which lymph nodes?
Internal iliac
Superficial perineal structures will drain to which lymph nodes?
Superficial inguinal
Lymph from the clitoris or glans penis will drain where?
Deep inguinal
The gonads drain lymph to where?
Para-aortic nodes
