Scrotum

Question 1

The primary function of the scrotum is ……

Answer 1

maintaining an optimal temperature for spermatogenesis.

Question 2

What is Scrotum?

Answer 2

A fibromuscular pouch divided by a median septum (visible externally as the scrotal raphe) that forms two compartments, each of which contains a testis, epididymis, and part of the spermatic cord

Question 3

Layers of the scrotum consist of the skin, ………., ………, ………, and ……….. which is in close contact with the parietal layer of the tunica vaginalis.

Answer 3

dartos muscle, external spermatic fascia, cremasteric fascia, and internal spermatic fascia,

Question 4

The layers of the scrotum from superficial to deep include
…………
………….
…………
…………

Answer 4

Skin
Dartos fascia
Cremasteric fascia
Tunica vaginalis

Question 5

The scrotum has a rich sensory nerve supply that includes

Answer 5

the genital branch of the genitofemoral nerve (anterior and lateral scrotal surfaces), the ilioinguinal nerve (anterior scrotal surface), posterior scrotal branches of the perineal nerve (posterior scrotal surface), and the perineal branch of the posterior femoral cutaneous nerve (inferior scrotal surface).

Question 6

maintaining an optimal temperature for spermatogenesis is achieved through……..

Answer 6

thermoregulatory mechanisms

Question 7

What are the thermoregulatory mechanisms of the scrotum?

Answer 7

Contraction or relaxation of the dartos muscle to adjust surface area
Elevation or descent of the testes via the cremaster muscle activity.

Question 8

……… Is the outermost layer, characterized by its thinness and pigmentation, which aids in thermoregulation

Answer 8

Skin

Question 9

……… Is a layer of smooth muscle (dartos muscle) continuous with Scarpa’s fascia in the abdomen and Colles’ fascia in the perineum. This layer helps regulate temperature by wrinkling the skin to reduce heat loss.

Answer 9

Dartos fascia

Question 10

……… Is derived from the external oblique aponeurosis.

Answer 10

External spermatic fascia

Question 11

…….. Contains the cremaster muscle, which elevates the testes as part of thermoregulation
Internal spermatic fascia - Originates from the transversalis fascia

Answer 11

Cremasteric fascia

Question 12

……. A mesothelial layer with parietal and visceral components surrounding the testes

Answer 12

Tunica vaginalis

Question 13

The ……. and …. layers of the scrotum are supplied by the perineal branch of the internal pudendal artery in addition to the external pudendal branches of the femoral artery.

Answer 13

skin and dartos

Question 14

The layers deep to the dartos muscle are supplied by the ………
.

Answer 14

cremasteric branch of the inferior epigastric artery

Question 15

The veins of the scrotum accompany the arteries, eventually draining into the external pudendal vein and subsequently the greater …….

Answer 15

saphenous vein.

Question 16

Lymphatic drainage of the skin of the scrotum is by the …….. to the medial superficial inguinal lymph nodes

Answer 16

external pudendal vessels