Angiology Flashcards
What are the branches of the abdominal aorta?
Testicular/ovarian A, inferior mesenteric, median sacral, common iliac A
What does the ovarian A supply?
Branches into ovarian and tubular branches that supply ovary and uterine tubes
Describe the superior rectal A
Branches of the IMA to supply the superior aspect of the rectum
Anastomoses with middle and inferior rectal A
Describe the superficial and deep external pudendal A
Branch of the femoral A (from external iliac) and produce anterior scrotal (male) and anterior labial A (female) which supply the scrotum and labia majora
Which arteries are part of the anterior division of the internal iliac A?
Umbilical A, obturator, inferior vesical (male), uterine (female), vaginal, middle rectal, inferior gluteal, internal pudendal arteries
What does the internal iliac supply?
Pelvic organs, gluteal muscles and perineum
What does the superior vesical A supply?
Branches off umbilical A to supply superior aspect of urinary bladder
What does the obturator A supply?
Pelvic muscles, ilium, femoral head, muscles of medial thigh
What does the inferior vesical A supply?
Seminal vesicles, prostate gland, ductus deferens, ureters, urinary bladder
Analogous to vaginal A in female
Branches into prostatic branch and artery to ductus deferens
Describe the uterine A
Travels medially in the broad L of the uterus Supplies uterus, uterine tubes, ovaries and ureters Homologous to artery of ductus deferens Has vaginal (vagina and cervix), ovarian and tubular branches
What does the middle rectal A supply?
Inferior rectum, anal canal and seminal vesicles in males
What are the terminal branches of the anterior division of the internal iliac?
Inferior gluteal and internal pudendal
What does the inferior gluteal A supply?
Coccygeus, three levator ani muscles, piriformis, quadratus femoris, upper most posterior thigh muscles, gluteus maximus, sciatic N
What is the course of the internal pudendal A?
Exits pelvic cavity through greater sciatic foramen turns around Ischial spine and enters perineum through lesser sciatic foramen before entering the pudendal canal
What are the branches of the internal pudendal A?
Both: inferior rectal and perineal A
Males: artery of bulb of penis, deep A of penis, dorsal A of penis
Females: artery of vestibule of vagina, deep A of clitoris and dorsal A of clitoris
What does the inferior rectal A supply?
Distal anal canal
Describe the perineal A
Exits pudendal canal and enters superficial perineal space
Terminal branches: posterior sacral A and posterior labial A both traveling in superficial fascia of scrotum/labia majora
What does the A of bulb of penis supply?
Pierces perineal membrane to supply bulb of penis and bulbourethral gland
Analogous to A of vestibule of vagina in females
What does the deep A of penis supply?
Terminal branch of internal pudendal A
Pierces perineal membrane to enter and supply corpora cavernosa of penis
What does the dorsal A of the penis supply?
Terminal branch of internal pudendal
Pierces perineal membrane, passes through suspensory L of penis, travels on dorsum of penis, and supplies skin of the penis and erectile tissue
What does the A of the vestibule of vagina supply?
Pierces perineal membrane
Supplies vaginal vestibule and greater vestibular gland
Analogous to A of bulb of penis
What does the deep A of the clitoris supply?
Terminal branch of internal pudendal A
Pierces terminal membrane to enter and supply the clitoris
What does the dorsal A of clitoris supply?
Terminal branch of internal pudendal
Piercers perineal membrane and supplies skin over the clitoris and erectile tissue
Which branches are part of the posterior division of the internal iliac?
Iliolumbar, lateral sacral A and superior gluteal A
Describe the iliolumbar A
Enters iliac fossa and branches into iliac and lumbar branches
Iliac branch supplies ilium and iliacus M
Lumbar branch supplies the psoas major and quadratus lumborum M
Describe the lateral sacral A
Travels on Anteromedial aspect of piriformis sending branches into the ventral sacral foramina
Supplies piriformis, structures in sacral canal and erector spinae muscles
What does the superior gluteal A supply?
Exits pelvic cavity through GSF Superior to piriformis M
Supplies piriformis, gluteus maximus, gluteus medius, minimus, and tensor fascia latae M
What is the pampiniform venous plexus?
Inside spermatic cord Drains to testicular V
Inside the suspensory L of the ovary drains to ovarian V
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?
Near the anus, inferior most anastomosis of the superior, middle and inferior rectal V
What are internal hemorrhoids (piles)?
The prolapse of the mucosa containing the internal rectal venous plexus which impedes blood flow
What are external hemorrhoids?
Produced by blood clots in the external rectal venous plexus which bulges out the mucosa overlying the skin and are painful
