Relationships Flashcards
Ductus deferens exists ____
THE ABDOMEN POSTERIOR TO THE PERITONEAL CAVITY
external iliac artery and vein are posterior to the peritoneal cavity
External iliac artery becomes the femoral artery where?
once it crosses the inguinal ligament
cremaster arteries branch from
inferior epigastric a.
“entrance” of spermatic cord into canal
deep inguinal ring
Inguinal Canal Contents: male
contains
ductus deferens ilioinguinal n. genital branch of genitofermoral n. testicular a. pampiniform plexus of veins all surrounded by fascial layers
superficial inguinal ring: “exit” point of spermatic cord through external oblique muscle
Tests develop _______ (primarily or secondarily etc)
retroperitoneal from urogenital ridge of mesoderm in the UIPPER lumbar/lower thoracic region
then they migrate inferiorly
Gubernaculum
testes attached to gubernaculum which is attached inferiorly to the labial scrotal fold
it guides inferior migration
processus vaginalis
at around 7 months, the process vaginalis is a pouch of peritoneum which develops and pushes into labial scrotal swelling
what does the gubernaculum do?
pulls the testes into the developing scrotum THROUGH the inguinal canal
along with the testes, what are being pulled through the inguinal canal and into the early scrotum?
testes, ductus deferens, lymphatics, testicular vessels and nerves
What happens to the process vaginalis in boys?
it should close off and become an isolated pocket of peritoneum, the tunica vaginalis
Cryptorchidism
undescended testes
associated with prematurity
men with a history of cryptorchidism have a higher incidence of testicular cancer
Hydroceles can form in two places
the tunica vaginalis and the spermatic cord
hemorrhage often occurs in the
tunica vaginalis due to injury of the spermatic cord
hematocele =
blood in the tunica vaginalis
Descent of testes: the fascial layers involved
as testes descend they acquire four layers:
- tunica vaginalis (partially covers tests)
- external spermatic fascia
- cremaster muscle/fascia
- internal spermatic fascia
round ligament of the ovaries
upper gubernaculum