Scrotum Flashcards
(16 cards)
What is the scrotum?
What are the layers of the scrotum from superficial to deep?
- Skin
- Dartos fascia
- External spermatic fascia
- Cremasteric fascia
- Internal spermatic fascia
- Tunica vaginalis
What is the outermost layer of the scrotum?
Skin
What is the function of the dartos fascia?
Helps regulate temperature by wrinkling the skin to reduce heat loss.
From which structure is the external spermatic fascia derived?
External oblique aponeurosis
What muscle is contained within the cremasteric fascia?
Cremaster muscle
What is the primary function of the scrotum?
Maintaining an optimal temperature for spermatogenesis.
How does the dartos muscle contribute to thermoregulation?
By contracting or relaxing to adjust surface area.
What is the role of the cremaster muscle?
Elevates the testes as part of thermoregulation.
Which arteries supply the skin and dartos layers of the scrotum?
- Perineal branch of the internal pudendal artery
- External pudendal branches of the femoral artery
What is the lymphatic drainage pathway for the skin of the scrotum?
External pudendal vessels to the medial superficial inguinal lymph nodes.
What nerves supply the sensory innervation to the scrotum?
- Genital branch of the genitofemoral nerve
- Ilioinguinal nerve
- Posterior scrotal branches of the perineal nerve
- Perineal branch of the posterior femoral cutaneous nerve
Fill in the blank: The tunica vaginalis is a _______ layer surrounding the testes.
mesothelial
True or False: The internal spermatic fascia originates from the transversalis fascia.
True
What is the role of the veins associated with the scrotum?
They accompany the arteries and drain into the external pudendal vein and subsequently the greater saphenous vein.
