肉様膜
WordNet
- move with sudden speed; "His forefinger darted in all directions as he spoke"
- a small narrow pointed missile that is thrown or shot
- a tapered tuck made in dressmaking
- run or move very quickly or hastily; "She dashed into the yard" (同)dash, scoot, scud, flash, shoot
- make ones way by force; "He muscled his way into the office"
- animal tissue consisting predominantly of contractile cells (同)muscular_tissue
- one of the contractile organs of the body (同)musculus
- authority or power or force (especially when used in a coercive way); "the senators used their muscle to get the party leader to resign"
PrepTutorEJDIC
- (武器の)『投げやり』,(投げ矢遊びの)投げ矢 / (昆虫の)針 / 《複数形で》投げ矢遊び / 《a~》急激な突進 / ダーツ(洋服を体に合わせるための縫いつまみ) / (…に)〈やり・矢,視線など〉'を'投げる,投げかける / (投げ矢のように)『突進する』,さっと動く
- 〈U〉(動物体の組織としての)『筋肉』,筋(きん);〈C〉(体の各部を動かす)筋肉 / 〈U〉力,(特に)筋力,腕力 / 《俗に》(…に)強引に割り込む《+『in on』(『into, through』)+『名』》
- 筋肉の,筋力のある / 力ずくの
Wikipedia preview
出典(authority):フリー百科事典『ウィキペディア（Wikipedia）』「2015/05/23 16:57:08」(JST)
[Wiki en表示]
| Dartos |
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The scrotum. (Label for Dartos is at bottom left.)
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The scrotum. (Label for Dartos is at bottom left.)
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| Details |
| Latin |
Tunica dartos |
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Origin
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Subcutaneous tissue of scrotum, superficial to superficial fascia (Colles) |
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Insertion
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Skin and midline raphé of scrotum |
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Artery
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Artery of Duffy[citation needed] |
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Nerve
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Genital branch of genitofemoral nerve |
| Actions |
Corrugates the scrotum |
| Identifiers |
| Gray's |
p.1238 |
Dorlands
/Elsevier |
d_02/12280192 |
| TA |
A09.4.03.003 |
| FMA |
18088 |
| Anatomical terms of muscle |
The dartos fascia or simply dartos is a layer of connective tissue found in the penile shaft and scrotum.[1]66 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]66
It 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]66
In females, the same muscle fibers are less well developed and termed dartos muliebris, lying beneath the skin of the labia majora.
It receives innervation from postganglionic sympathetic nerve fibers arriving via the ilioinguinal nerve and the posterior scrotal nerve. (http://anatomy.med.umich.edu/gastrointestinal_system/inguinal_tables.html)
Contents
- 1 Function
- 2 Related terms
- 3 Additional images
- 4 References
- 5 External links
Function
In the penis, the loose attachment of the dartos fascia to Buck's fascia is responsible for the high degree of mobility of the penile skin over the underlying tissue.[1]66 It is also responsible for carrying the blood supply of the penile skin, a longitudinally-coursing anastamotic network of vessels that arise from the external pudendal vessels.[1]66
In the scrotum, the tunica dartos acts to regulate the temperature of the testicles, which promotes spermatogenesis. It does this by expanding or contracting to wrinkle the scrotal skin.
- Contraction reduces the surface area available for heat loss, thus reducing heat loss and warming the testicles.
- Conversely, expansion increases the surface area, promoting heat loss and thus cooling the testicles.
The dartos muscle works in conjunction with the cremaster muscle to elevate the testis but should not be confused with the cremasteric reflex.
Related terms
Etymology:
- Derived from the Greek δέρνω/derno (beat, flog) and/or δέρμα/derma (skin), meaning "that which is skinned or flayed", possibly due to its appearance. [4]
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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Transverse section through the left side of the scrotum and the left testis.
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-
References
- ^ a b c d e et al. (2012). Campbell-Walsh urology / editor-in-chief, Alan J. Wein ; [editors, Louis R. Kavoussi ... et al.]. (10th ed. ed.). Philadelphia, PA: Elsevier Saunders. ISBN 978-1-4160-6911-9.
- ^ Terminologica Anatomica 98
- ^ Gray's 16th Edition
- ^ http://www.dartmouth.edu/~humananatomy/resources/etymology/Abdominal_wall.htm
External links
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Male reproductive system
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|
| Internal |
| Seminal tract |
| Testes |
- layers
- Tunica vaginalis
- Tunica albuginea
- Tunica vasculosa
- Appendix
- Mediastinum
- Lobules
- Septa
- Leydig cell
- Sertoli cell
- Blood–testis barrier
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| Spermatogenesis |
- Spermatogonium
- Spermatocytogenesis
- Spermatocyte
- Spermatidogenesis
- Spermatid
- Spermiogenesis
- Spermatozoon
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| Other |
- Seminiferous tubules
- Tubuli seminiferi recti
- Rete testis
- Efferent ducts
- Epididymis
- Paradidymis
- Spermatic cord
- Vas deferens
- Ejaculatory duct
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|
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| Accessory glands |
- Seminal vesicles
- Prostate
- Urethral crest
- Seminal colliculus
- Prostatic utricle
- Ejaculatory duct
- Prostatic sinus
- Prostatic ducts
- Bulbourethral glands
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| External |
| Penis |
- root
- Crus
- Bulb
- Fundiform ligament
- Suspensory ligament
- body
- Corpus cavernosum
- Corpus spongiosum
- glans
- fascia
- Tunica albuginea
- Septum of the penis
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| Urinary tract |
- Internal urethral orifice
- Urethra
- Prostatic
- Intermediate
- Spongy
- Navicular fossa
- External urethral orifice
- Lacunae of Morgagni
- Urethral gland
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| Scrotum |
- layers
- skin
- Dartos
- External spermatic fascia
- Cremaster
- Cremasteric fascia
- Internal spermatic fascia
- Perineal raphe
- Scrotal septum
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Index of reproductive medicine
|
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| Description |
- Anatomy
- Physiology
- Development
- sex determination and differentiation
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| Disease |
- Infections
- Congenital
- Neoplasms and cancer
- male
- female
- gonadal
- germ cell
- Other
- Symptoms and signs
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| Treatment |
- Procedures
- Drugs
- benign prostatic hypertrophy
- erectile dysfunction and premature ejaculation
- sexual dysfunction
- infection
- hormones
- androgens
- estrogens
- progestogens
- GnRH
- prolactin
- Assisted reproduction
- Birth control
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Muscles of perineum
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| Perineum |
| Anal triangle |
| sphincter ani |
|
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- Ischioanal fossa
- Pudendal canal
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| Middle |
|
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| Urogenital triangle |
| superficial perineal pouch |
- superficial transverse perineal
- bulbospongiosus
- ischiocavernosus
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| deep perineal pouch |
- deep transverse perineal
- sphincter urethrae membranaceae
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| Fascia |
| Superficial perineal fascia |
- Colles' fascia
- (in scrotum and penis: Dartos)
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| Deep perineal fascia |
- Deep perineal fascia / superficial investing fascia (Gallaudet's)
- (in penis: Deep fascia of the penis (Buck's))
|
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| Urogenital diaphragm |
- Inferior fascia (Perineal membrane)
- Superior fascia
|
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| Pelvic diaphragm |
- Inferior fascia
- Superior fascia
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Index of muscle
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| Description |
- Anatomy
- head
- neck
- arms
- chest and back
- diaphragm
- abdomen
- genital area
- legs
- Muscle tissue
- Physiology
|
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| Disease |
- Myopathy
- Soft tissue
- Connective tissue
- Congenital
- abdomen
- muscular dystrophy
- Neoplasms and cancer
- Injury
- Symptoms and signs
|
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| Treatment |
- Procedures
- Drugs
- anti-inflammatory
- muscle relaxants
|
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UpToDate Contents
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English Journal
- Sub-Coronal Inflatable Penile Prosthesis Placement With Modified No-Touch Technique: A Step-by-Step Approach With Outcomes.
- Weinberg AC1, Pagano MJ2, Diebert CM3, Valenzuela RJ4.
- The journal of sexual medicine.J Sex Med.2016 Jan 21. pii: S1743-6095(15)00051-X. doi: 10.1016/j.jsxm.2015.12.016. [Epub ahead of print]
- INTRODUCTION: The surgical treatment of disorders of male sexual function requires specific exposure to correct the underlying problem safely and efficiently. Currently, sub-coronal exposure is used for treatment of phimosis, Peyronie's disease plaque (PDP), and semirigid penile prosthesis insertion
- PMID 26805939
- Squamous Cell Carcinoma Arising From Massive Localized Lymphedema of Scrotum Mimicking Scrotal Smooth Muscle Hamartoma of Dartos: A Case Report.
- Su TF1, Lee HS, Gao HW, Nieh S, Lin CK.
- The American Journal of dermatopathology.Am J Dermatopathol.2015 Jul;37(7):551-4. doi: 10.1097/DAD.0000000000000135.
- Massive localized lymphedema (MLL) is an uncommon benign skin lesion typically presenting with prominent edema and vascular proliferation in the adipose tissue of lower limbs. When rarely occurring in scrotum, it instead is characterized by a striking proliferation of dermal smooth muscle bundles mi
- PMID 26091513
- Subcutaneous leiomyosarcoma of scrotum presenting as an exophytic mass: An unusual presentation.
- Batra A1, Marwah N1, Marwah S1, Gupta S1, Sen R1.
- Indian dermatology online journal.Indian Dermatol Online J.2015 May-Jun;6(3):193-5. doi: 10.4103/2229-5178.156394.
- Paratesticular leiomyosarcoma originates from testicular tunica (48%), spermatic cord (48%), epididymis (2%) and dartos muscle, as well as subcutaneous tissue of the scrotum (2%). Leiomyosarcomas of the scrotum, not involving the testis, epididymis or spermatic cord, are rare, and belong to the grou
- PMID 26009715
Japanese Journal
- Ｓｏｌｉｔａｒｙ ｇｅｎｉｔａｌ ｌｅｉｏｍｙｏｍａの１例
★リンクテーブル★
[★]
- 英
- dartos fascia (M,Z), dartos muscle (KL,KA), dartos
- ラ
- tunica dartos(KH)
- 関
- 浅会陰筋膜
- 平滑筋層であり、肉様膜筋を含む
- 平滑筋線維からなる (KH.231)
- 陰嚢の皮膚にしわを作る (KH.231)
[★]