The dartos fascia, dartos tunic or simply dartos is a layer of connective tissue found in the penile shaft, foreskin and scrotum. The penile portion is referred to as the superficial fascia of penis or the subcutaneous tissue of penis, while the scrotal part is the dartos proper. In addition to being continuous with itself between the scrotum and the penis, it is also continuous with Colles' fascia of the perineum and Scarpa's fascia of the abdomen. The tone of this smooth muscle is responsible for the wrinkled (rugose) appearance of the scrotum.
Some dartos-related terms:
: dartoic (dar·to·ic) (dahr-to'ik) of the nature of a dartos; having a slow, involuntary contractility like that of the dartos.
: dartoid (dar·toid) (dahr'toid) resembling the dartos.
Additional images
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File:Gray1145.png|Transverse section through the left side of the scrotum and the left testis.
File:Slide9eee.JPG|Dartos
File:Penis_cross_section.svg
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