
	Where results make sense

Topic: Urogenital folds

In the News (Fri 17 Feb 12)

EXECUTIVE POWER

Iran

ANALYSIS

Pakistan

Family compact

	Development
		The uterovaginal primordium invaginates the dorsal surface of the urogenital sinus to become the epithelium and glands of the uterus.
		The urogenital folds and labioscrotal swellings do not fuse across the midline and remain to form the labia minora and majora.
		In the male testosterone promotes elongation of the phallus into the penis and the urogenital folds fuse and cause the urethra to be incorporated into the corpus spongiosum, with the urethral orifice at the glans penis.
	www.med.mun.ca /anatomyts/embryo/reprodev.htm (724 words)

	Male Reproduction System
		The urogenital sinus gives rise to: 1) the bladder in both sexes; 2) the membranous (= entire) urethra in females, and the membranous and prostatic urethra in males; 3) the vestibule of the vagina in females and the penile urethra in males.
		As this occurs, the urogenital folds develop and form the lateral walls of the urethral groove of the ventral surface of the penis.
		The phallus regresses to become the clitoris, the urogenital folds become the labia minora, and the labioscrotal folds become the labia majora.
	courseweb.edteched.uottawa.ca /Medicine-histology/English/Reproduction/Embryology/Embryology.htm (1530 words)

	Endotext.com - Pediatric Endocrinology, Sexual Differentiation
		The urogenital sinus is individualized in 7-9 mm (~5 week) human embryos, when a transverse urorectal septum divides the cloaca into the rectum dorsally and the primitive urogenital sinus ventrally, closed by the genital membrane which disappears in 20-22 mm (~8 week) embryos (167).
		The Müllerian tubercle demarcates the cranial vesicourethral canal from the caudal urogenital sinus.
		The urethral plate, an extension of the urogenital sinus which is present within the genital tubercle from the earliest stages of development (172), lies in the roof of the primary urethral groove and extends to the tip of the phallus.
	www.endotext.org /pediatrics/pediatrics7/pediatrics7_2.htm (5050 words)

	UROGENITAL SYSTEM
		The urethral folds separate the UG sinus into vagina and urethra behind the clittoris which develops from the tubercle.
		In the male, the urethral folds extend along the entire length of the growing penis and fuse along it, carrying the opening of the urethra to the tip of the penis.
		The UG folds also fuse, and instead of forming labia as in the female, they form scrotal sacs which close over the rest of the UG sinus opening.
	www.csun.edu /~vcbio001/ugsys.html (1102 words)

	Female Reproductive System (Site not responding. Last check: 2007-10-13)
		Labia minora - urogenital folds that remain unfused.
		It is comprised of nonkeratinized stratified squamous epithelium.
		There are many folds (vaginal rugae) which allow for distention to allow for the insertion of the penis.
	www.etsu.edu /cpah/hsci/forsman/femalelecture.htm (1217 words)

	Reproductive System
		In a male embryo, androgens secreted by the testes cause the phallus to elongate into the penis and the urogenital folds to fuse and form the spongy urethra.
		Without influence of androgens, the phallus becomes the clitoris, the urogenital folds become the labia minora, and the labioscrotal swellings become the labia majora.
		Incomplete fusion of the urogenital folds creates abnormal openings of the urethra on the ventral aspect of the penis.
	www.med.umich.edu /lrc/coursepages/M1/embryology/embryo/12reproductivesystem.htm (474 words)

	Hypospadias & Epispadias Association \| Support and Medical Information (Site not responding. Last check: 2007-10-13)
		At this point the urogenital system has begun development but has not yet differentiated into male or female structures.
		As shown in Figure 2, the external genitalia consist of a genital tubercle, urogenital folds, and labioscrotal folds.
		The genital tubercle forms the clitoris, the urogenital folds the labia minora, and the labioscrotal folds the labia majora.
	www.hypospadias.net /articles/embryology.htm (141 words)

	Anatomy: The Pelvis
		Primitive Urogenital Sinus and development of Bladder: The primitive UG sinus is continuous with the Allantois in the anterior part of the cloacal region.
		The caudal parts of the tube are induced by the urogenital sinus to fuse together to form the uterovaginal primordium, and ultimately form part of the uterus.
		Urogenital Diaphragm: The part of the pelvic diaphragm that extends medially, between the ischiopubic rami.
	www.geocities.com /doctor_uae/pelvis.htm (8854 words)

	[No title] (Site not responding. Last check: 2007-10-13)
		Labia majora — hairy folds of skin that extend down from the mons pubis Posterior labial commissure — point where the labia majora join posteriorly Anterior labial commissure — point where the labia majora join anteriorly Labia minora — thinner, hairless folds of skin medial to the labia majora.
		The posterior folds attach to the posterior surface of the clitoris to form the frenulum of the clitoris.
		The components of the urogenital diaphragm from superficial or inferior to superior are: perineal membrane deep transverse perineal muscle — superior to posterior edge of perineal membrane sphincter urethrae muscle — anterior to the deep transverse perineal muscle, surrounds urethra superiorly to bladder, is the external voluntary urethral sphincter.
	www.utmed.com /studynotes/gross/LAB41THEFEMALE.doc (1164 words)

	[No title]
		In the male, the urogenital folds becomes the penis shaft, the labioscrotal folds become the scrotum, and the genital tubercle becomes the head of the penis.
		At the end of the third month, urogenital folds on the caudal end of the cloacal folds fuse to form the penile urethra (text fig.14.33).
		In the female, the urogenital folds become the labia minora, the labioscrotal folds the labia majora, and the genital tubercle the clitoris.
	www.cumc.columbia.edu /dept/ps/2004/Academic/first_year/hd/hd19.doc (1736 words)

	Embryology - USMLE Review
		Neural folds fuse and the neural tube is temporarily open at both ends, communicating freely with the amniotic cavity.
		The diverticulum becomes separated from the primitive pharynx by longitudinal trachoesophageal folds which fuse to form the trachoesophageal septum, dividing the foregut into the ventral laryngotracheal tube and the dorsal esophagus.
		During folding of the embryonic disc in week 4, the lateral parts of the intraembryonic coelom are brought together on the ventral aspect of the embryo (The Developing Human, 6th ed., p.
	www.aismcentral.net /EMBRYOL.html (5903 words)

	[No title] (Site not responding. Last check: 2007-10-13)
		The vagina forms from 2 sources 1) the urogenital sinus is the source of the vaginal epithelium and 2) the uterovaginal primordium is the source for the fibromuscular wall of the vagina.
		The urogenital folds fuse and form the ventral surface of the penis in the male and form the labia minora in the female.
		The labioscrotal folds fuse and form the scrotum in the male and the labia majora in the female.
	www.kumc.edu /research/medicine/pharmacology/CAI/webCAI/anatomy/em16.wbc (3605 words)

	Untitled
		Tourneaux's Fold: A wedge of mesoderm that invades the hindgut region along the midsagittal plane.
		These two folds come together such that the hindgut is separated from the primitive urogenital sinus.
		There are semilunar folds, the internal markings of the sulci on the outside.
	www.ucd.ie /vetanat/ga-subject/abdomen/ab13.html (707 words)

	Development of the Urogenital System
		The urinary and genital systems have a common developmental route beginning from the urogenital ridge which comes from intermediate mesoderm.
		In the embryo there are three different kidneys that develop in a sequence with only the last ones persisting.
		Failure of the urethral folds to fuse properly which results in an opening of the urethra on the ventral side of the penis.
	rossmed.drbuschman.com /notes/semesterone/urodev.htm (1755 words)

	Development of External Male Genitalia (Site not responding. Last check: 2007-10-13)
		As the genital tubercle is elongating and growing to form the penis, the urogenital folds which lie on either side of the urogenital membrane begin to move towards each other forming a groove, this is known as the urethral groove.
		The urogenital folds fuse together on the ventral side of the developing penis, enclosing what will now become the spongy urethra.
		If the urogenital folds fail to close, hypospadias results.
	sprojects.mmi.mcgill.ca /embryology/ug/Reproductives/Normal/Male_external.html (209 words)

	[No title] (Site not responding. Last check: 2007-10-13)
		When there is no Y or androgen, Mullerian Ducts from both sides come down, join in the center and eventually come down and contact the urogenital sinus in an area called the sinus tubercle.
		Labial swellings and urogenital folds also occur in both sexes at this stage.
		Urogenital folds become part of the closure of the external part of the urethra.
	www.utmed.com /studynotes/devo/male_fem_repro.doc (765 words)

	Hypospadias (Site not responding. Last check: 2007-10-13)
		Hypospadias results from the failure of the urogenital folds to close due to inadequate androgen production or inadequate hormone receptors.
		The result of the urogenital folds not closing completely is that the spongy urethra does not form completely.
		The exact form of the anomaly is dependent upon where the closure fails to occur.
	sprojects.mmi.mcgill.ca /embryology/ug/Reproductives/Anomalies/Hypospadias.html (144 words)

	Development of Female External Genitalia (Site not responding. Last check: 2007-10-13)
		Meanwhile, the urogenital folds are developing into the labia minora.
		The labioscrotal folds continue to grow as well, fusing at their most posterior and anterior portions to form labial commissures.
		In the female, the anus and urogenital orifices (urethra and vagina) open into the same cavity, the vestibule of the vagina.
	sprojects.mmip.mcgill.ca /embryology/ug/Reproductives/Normal/Female_external.html (181 words)

	[No title]
		Urogenital Sinus (from hindgut) Differentiation: Males — prostate, bulbourethral glands Females — urethral and paraurethral glands, greater vestibular gland, remainder of vagina (inferior portion) Fig.
		The dragging of the double layer folds partitions the lower pelvic cavity, such that the ovary and rectouterine pouch lie posterior to the partition and the vesicouterine pouch lies anterior to the division.
		Lateral to the urogenital sinus are the urogenital folds.
	www.uhmc.sunysb.edu /som/students/2003/Lectures/emb09.doc (2645 words)

	THE REPRODUCTIVE SYSTEM
		Three folds are formed: phallus, urogenital and labioscrotal folds.
		Urogenital folds (a pair of medial tissue folds posterior to the phallus) and
		In male, the phallus elongates forming the penis; the urogenital folds forms the urethra and the labioscrotal folds forms the scrotal sac and testes.
	www.gpc.edu /~decms/ibim/reproductsystem.htm (2794 words)

	The Prepuce: Anatomy, Physiology, Innervation, Immunology, and Sexual Function
		The prepuce of the clitoris forms independently of the urogenital and labioscrotal folds, which form the labia minora and labia majora, respectively [32].
		Some authors state that the clitoral prepuce is formed by a splitting of the urogenital folds around the clitoris, with development of the prepuce superiorly and the clitoral frenulum inferiorly [34].
		The urogenital groove on the ventral surface of the clitoris prevents circumferential preputial development and results in the hoodlike appearance of the clitoral prepuce.
	www.cirp.org /library/anatomy/cold-taylor (5643 words)

	Urogenital folds - Wikipedia, the free encyclopedia
		Wikimedia needs your help in its US$200,000 fund drive.
		In the female, the urogenital folds become the labia minora while in the male they form the urethra and a portion of the shaft of the penis, not including the glans.
		This page was last modified 20:13, 30 April 2005.
	en.wikipedia.org /wiki/Urogenital_folds (102 words)

	p63 Coordinates Anogenital Modeling and Epithelial Cell Differentiation in the Developing Female Urogenital Tract -- ...
		in the urogenital sinus at the Mullerian tubercle and subsequent
		folds to eventually form the labia minora and majora, respectively.
		Histopathology of the Urogenital Tracts of p63-Null Mice
	ajp.amjpathol.org /cgi/content/full/161/4/1111 (3188 words)

	Dictionary of Meaning www.mauspfeil.net (Site not responding. Last check: 2007-10-13)
		The '''urogenital folds''' are an embryology embryological structure which give rise to a portion of the external genitalia.
		In the female, the urogenital folds become the vulva ''labia minora'' while in the male they form the urethra and a portion of the shaft of the penis, not including the glans.
		There you find a list of all editors and the possibility to edit the original text of the article Urogenital folds.
	www.mauspfeil.net /Urogenital_folds.html (128 words)

	Basics
		Urogenital folds: Urogenital folds around urethra in male; labia minora in female.
		Urogenital sinus: bladder, urethra, prostate, blubo-urethral glands of male: bladder, urethra, lower vagina and Bartholin's glands of female.
		stimulates growth of thick, folded vaginal epithelium that is resistant to trauma and infections (cells accumulate glycogen which is acted on by Doderleins bacilli to produce acidic vaginal secretions),
	classes.kumc.edu /son/nrsg835/basics.htm (1827 words)

	Embryology Lecture Notes
		The urogenital sinus is comprised of 3 regions:
		The vagina develops from the vaginal plate derived from the urogenital sinus, and the indifferent external genitalia develop into the clitoris and labia (The Developing Human, 6th ed., p.
		Failure of the urogenital folds to fuse normally in males results in various types of hypospadias (opening of the external urethral orifice on the ventral surface of the glans penis or on the ventral surface of the body of the penis; The Developing Human, 6th ed., p.
	web.indstate.edu /thcme/duong/EMBRYOL.html (7906 words)

	Partitioning of Cloaca (Site not responding. Last check: 2007-10-13)
		As the urogenital septum is migrating caudally, the intermediate masses are also proliferating.
		When the urogenital septum reaches the cloacal membrane, dividing it into its two components parts, the labioscrotal folds fuse yielding a perineum which separates the anal membrane from the urogenital membrane.
		The embryo is still in its bipotential phase at this point and has the potential to develop either male or female external genitalia.
	sprojects.mmip.mcgill.ca /embryology/ug/Reproductives/Normal/cloaca.html (258 words)

	All About Embryology
		These ducts, known as the uterine tubes, mostly parallel the courses of the mesonephric ducts, but at their lower ends they unite into a common tube that becomes the uterus and vagina.
		In the male, the tubercle and the united urogenital folds combine as the penis, thereby continuing the urethra to its end; the genital swellings shift toward the anus, fuse, and become the scrotum.
		The urogenital folds remain unclosed as the lesser vulvar lips and are flanked by the unshifted and unfused genital swellings, or greater lips.
	www.becomehealthynow.com /article/bodyembryo/789/9 (2308 words)

	Early Development of the External Genitalia (Site not responding. Last check: 2007-10-13)
		Along the sides of the cloacal membrane, outer labio-scrotal and inner urogenital folds also develop.
		This provides a division in the membrane which will form the anus and the urogenital system, dorsally and ventrally respectively.
		The urogenital membrane is surrounded by the folds described earlier.
	sprojects.mmi.mcgill.ca /embryology/ug/Reproductives/Normal/earlyext.html (184 words)

Try your search on: Qwika (all wikis)