Layers of the testis

Question 1

What are the layers of the abdomen?

Answer 1

From outside to inside: Skin->Camper’s fascia (fatty)->Scarpa’s fascia (fibrous)->external oblique->internal oblique->transversalis->transversalis fascia->extra- (or pre-)peritoneal fat->peritoneum

Question 2

What other major event initiates during the same week that the testes pass through the inguinal canal?

Answer 2

Surfactant begins to form.

Question 3

Which of the abdomen layers descend to form the layers of the testes?

Answer 3

External oblique->External spermatic fascia
Internal oblique->Cremasteric muscle and fascia
Transversalis fascia->internal spermatic fascia

Question 4

Which layers do not descend?

Answer 4

TRANSVERSUS ABDOMINIS MUSCLE

Question 5

What is the guide structure for the testes to descend?

Answer 5

The Gubernaculum

Question 6

What is the Processus Vaginalis?

Answer 6

It is the outpouching of parietal peritoneum that descends right before the testis through the gubernaculum. It forms the tunica vaginalis (down) and closes (up).

Question 7

What happens if the upper portion of the processus vaginalis remains patent?

Answer 7

CONGENITAL INDIRECT inguinal hernia (indirect means lateral to the inferior epigastric vessels)