dartos muscle


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Related to dartos muscle: spermatic cord, gubernaculum

dar·tos mus·cle

smooth muscle fibers interspersed within the dartos fascia (superficial fascia of scrotum), causing contraction of the scrotum, as when experiencing a cool environmental temperature.
See also: dartos fascia.
Synonym(s): musculus dartos [TA]

dar·tos mus·cle

(dahr'tōs mus'ĕl)
Smooth muscle fibers interspersed within the dartos fascia (superficial fascia of scrotum), causing contraction of the scrotum, as when experiencing a cool environmental temperature.
Synonym(s): musculus dartos [TA] .

dartos muscle

A thin layer of muscle lying immediately under the skin of the SCROTUM. The dartos tightens in the cold causing the skin to wrinkle and the testicles to rise.
References in periodicals archive ?
Previously, these lesions have been attributed to sebaceous cysts, calcified steatocystoma, fibroma, atheroma and xanthoma.[sup.8,9] More recently, it has been suggested that they are the result of dartos muscle necrosis and degeneration with resulting dystrophic calcification of the dartos muscle in a process similar to the calcification of uterine leiomyoma.[sup.10]
The testicles and associated structures are located within the scrotum, formed by fusion of three fascial layers and divided by a median septum.1 The septum is contiguous with the dartos muscle underneath the scrotal skin.
(fig 2a) entrapping the blood vessels and the dartos muscle. The spindle cells did not show any mitosis or atypia and the immunohistochemistry for smooth muscle actin (SMA) and S-100 was negative (Fig.