The scrotum. (Label for dartos is at bottom left.)
The scrotum. (Label for dartos is at bottom left.)
Details
Origin
Subcutaneous tissue of scrotum, superficial to superficial fascia (Colles)
Insertion
Skin and midline raphe of scrotum
Nerve
Genital branch of genitofemoral nerve
Actions
Corrugates the scrotum
Identifiers
Latin
tunica dartos
TA98
A09.4.03.003
TA2
3695
FMA
18088
Anatomical terms of muscle
[edit on Wikidata]
The dartos fascia, dartos tunic or simply dartos is a layer of connective tissue found in the penile shaft, foreskin and scrotum.[1] The penile portion is referred to as the superficial fascia of penis or the subcutaneous tissue of penis,[2] 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.[1]
The dartos lies just below the skin, which places it just superficial to the external spermatic fascia in the scrotum and to Buck's fascia in the penile shaft. In the scrotum, it consists mostly of smooth muscle.[3] The tone of this smooth muscle is responsible for the wrinkled (rugose) appearance of the scrotum.[1] In females, the same muscle fibers are less well developed and termed dartos muliebris, lying beneath the skin of the labia majora. The dartos fascia receives innervation from postganglionic sympathetic nerve fibers arriving via the ilioinguinal nerve and the posterior scrotal nerve.
^ abcCampbell (25 August 2011). Alan J. Wein (ed.). Campbell-Walsh Urology. Philadelphia: Elsevier Saunders. ISBN 978-1-4160-6911-9.
The dartosfascia, dartos tunic or simply dartos is a layer of connective tissue found in the penile shaft, foreskin and scrotum. The penile portion is...
in the following articles: Appendix of epididymidis Cremaster muscle Dartosfascia Efferent ductules Epididymis Leydig cell Lobules of testis Paradidymis...
perineal pouch. In front, it is continuous with the dartosfascia of the penis and Scarpa's fascia upon the anterior wall of the abdomen; On either side...
helps to form the dartos. From the scrotum, it may be traced backward into continuity with the deep layer of the superficial fascia of the perineum (superficial...
outer skin, mucosal epithelium, lamina propia, dartosfascia and dermis. The superficial dartosfascia, formerly called the peripenic muscle, is one of...
testis. It is separated from the dartos tunic by loose areolar tissue. It is occasionally referred to as 'Le Fascia de Webster' after an anatomist who...
perineal fascia Colles' fascia (in scrotum and penis: Dartosfascia) Deep perineal fascia Deep perineal fascia / superficial investing fascia (Gallaudet's)...
It consists of flexible connective tissue and nonstriated muscle (dartosfascia). The site of the median septum is apparent on the surface of the scrotum...
forms dartos tunic. This layer is highly infiltrated by elastic and smooth muscle fibers and contains a minimal amount of fat. Scarpa's fascia ends inferior...
superficial of these two layers, the external spermatic fascia, lies deep to the skin and dartosfascia of the testes, superficial to the cremaster muscle...
superficial penile fascia) is continuous above with the fascia of Scarpa, and below with the dartos tunic of the scrotum and the fascia of Colles. It is...
taken from the scrotum, which contains the same smooth muscle (known as dartosfascia) as does the skin of the penis. One method involves a four-stage procedure...
deep fascia. The superficial dorsal vein of the penis belongs to the superficial drainage system. It is located within the superficial dartosfascia, a...
the dartos muscle causes the scrotum to become more wrinkled and smaller as it is retracted closer to the body. In warmer conditions, the dartos allows...
induced by fibrosis and contracture of the fascial tissue (Buck's fascia or dartos) surrounding the urethra; disproportionately large corpora in relation...
structures are those muscles, bones, ligaments, tendons, membranes and fascia, of the pelvic floor that maintain the position of the vagina within the...
with the dartos tunic of the scrotum; behind, with the subcutaneous areolar tissue surrounding the anus; and, on either side, with the same fascia on the...
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