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Introduction of ejaculatory duct ( ejaculatoryducl ) left and right pair ,is composed of vas deferens in prostate and seminal vesicle gland excretory duct is made up .The pipe wall is thin ,www.doudounemonclernb.com,muscular layer of smooth muscle ,lumen lined by columnar epithelium cell .
1.5 - 2.Oem ejaculation tube ,doudoune moncler,the proximal lumen diameter of about 1.0mm ,the opening end of only 0.3mm ,Because the long sun,only 0.5mm ,is the shortest ,the most fine fine pipe section of the .It runs through the openings in the prostatic urethra prostate ,the posterior wall of the verumontanum sides .
Ejaculatory duct through prostate ,prostate after D1 and the middle of the demarcation zone .Male urethra ( malellrethra ) is the micturition and row of semen in the urinary bladder pipe ,the internal urethral orifice ,stop at the head of the penis urethral outside the mouth ,long 17 - 20.
Ocm ,long and narrow pipe diameter ,each slightly different ( the average is about 8.0mm ) .Ejaculatory duct is seminal vesicle discharge pipe and vas deferens made up of paired muscular tube ,moncler.
The bladder is located at the bottom ,through openings in the prostatic urethra prostate ,prostatic utricle beneath the verumontanum ,so each one ,the profess ejaculatory duct .Ejaculation with length of 1-2 cm ,completely embedded within the prostate ,usually is in closed state ,orgasm occurs when the rhythm strong contraction ,prompted the epididymis ,vas deferens and seminal vesicle gland secretions from sperm injection of posterior urethra .
Fine Fu ( verumontanum ) is the prostatic urethra wall in the median eminence of the most prominent part of the urethral crest .Verumontanum from the rich smooth muscle tissue ,moncler,Gaogeyue 3 mm wide ,flanked by a plurality of prostatic duct open .
Verumontanum Central has a small blind cavity called prostatic utricle and a pair of ejaculatory duct .Prostatic utricle during embryogenesis is the residue ,and the female vagina is a homologous organ .
The scholar thinks ,prostatic utricle should also be classified as the reproductive system of male accessory gland .Orgasm, prostate contractions expel prostatic fluid ,stimulate the verumontanum ejaculation will inevitably feel ,and ejaculatory duct jet seminal fluid and sperm ,moncler outlet,verumontanum further irritation and contraction ( including ejaculatory rhythmic contraction ) is a male orgasm in pleasure based .
According to the division of the male urethra through different anatomical structure and is divided into 3 ,namely the prostatic urethra ( prostat - icpart ) ,film department (membranouspart ) and cavernous part ( spongypart ) .
In urology, usually in the urogenital diaphragm into the urethra anterior urethral ( anterior urethral ,ca. 15.Ocm ) and posterior ( posterior urethral ,3.U 4 ,0cm ) .Anterior urethra can be divided into the bulbar urethra ,urethral and penile urethra suspension Department head .
Structural characteristics of the male urethra in anatomically with 2 curved ,3 stenosis and 3 expansion .First bending in the membranous urethra ,is suitable in the pubic symphysis pubis below ,it is also known under bending ( infrapubicacurve ) or urethra after bending ;second located curved penile urethra ,is suitable in the pubic symphysis pubis in front of it ,before bending ( prepubicacurve ) .
When the penis will forward to urethral catheterization to the abdominal wall ,the front bending die .Because this segment urethral activity ,it is not easy to hurt .But the pubic recurved is fixed ,not artificially will it straightened, the human urethral catheterization device ,with the curved careful gentle insertion ,can never be rude to avoid injury .
3 narrow as the internal urethral orifice ,the membrane and the external orifice of urethra .The 3 enlargement is prostate ministry ,bulb and navicular fossa ( navicularfora ,moncler.{urethra ) .
The clinical anatomy of the male posterior urethra including membranous urethra and the prostatic urethra ,namely from the internal urethral orifice to the film section of the Department ( Figure 18 ) ,the length of about 4.
Ocm, wherein the membranous urethra is the shortest ( 1 - 1.2cm long only ) .Due to its through the external urethral sphincter urethra ,so is most fixed and weak period ,is also in addition to the external urethral orifice outside circumference minimal parts .
In addition to urinate when piece away ,often in a contracted state ,therefore ,with urethral inside equipment inspection technique at that time not easily wound ,is also in the perineal region by violence squeezing the most vulnerable anatomic site .
The prostatic urethra prostate encases a urethra ,completely in the pelvic cavity ,long 3 - 4.Ocm ,lumen as spindle ,the wider portion of urethra .As the prostate hyperplasia Ⅱ or Ⅲdegree,the urethra can be extended to 4 - 6.
Ocm .In this period of Posterior Urethra Wall in line with 1 longitudinal ridges called the urethral crest ,www.louboutinpaschersexfr.com,crest middle fusiform uplift was called fine Fu ( seminalc01 - liculus ) ,in which the central 1 crypts known prostatic utricle ( prostaticutricle ) ,the equivalent of the female vagina .
Crypt at two sides of ejaculatory duct ,a plurality of prostate opening in the verumontanum and adjacent mucosa .Ejaculatory duct formation and role of seminal vesicle discharge pipe and vas deferens made up of paired muscular tube .
The bladder is located at the bottom ,through openings in the prostatic urethra prostate ,prostatic utricle beneath the verumontanum ,so each one ,the profess ejaculatory duct .Ejaculation with length of 1-2 cm ,completely embedded within the prostate ,usually is in closed state ,orgasm occurs when the rhythm strong contraction ,prompted the epididymis ,vas deferens and seminal vesicle gland secretions from sperm injection of posterior urethra .
Organization structure from the inside to the outside of the wall of the urethra is divided into 3 layers : the mucosal layer ,muscle layer and adventitia .Anterior ,posterior urethral mucosa are slightly different ;the prostatic part mostly transitional epithelium ,and bladder transitional epithelial phase continuous ;membranous urethra was pseudostratified columnar epithelium ;anterior urethral most stratified columnar epithelium ,only near the head of the penis mucosa for the stratified squamous epithelium, and and the head of the penis surface epithelial layer .
Muscle layer composed of smooth muscle ,a longitudinal outer ring is arranged, in the corpus cavernosum of only a thin layer of circular smooth muscle .The outer layer is constituted by loose connective tissue membrane .
Urethral 1 narrow and long pipeline ,usually is in closed state .Male urethral stricture disease is common in Department of Urology ,the urethritis or urethral injury must be handled correctly, in order to avoid stenosis .
Blood supply and lymph after urethral blood supply from the inferior vesical artery ,rectal artery and the internal pudendal artery of the prostate ,the anastomosis between them more, so rich in blood supply ,after trauma and hemorrhage more .
Posterior urethral venous return to the bladder prostatic venous plexus ,and finally to the external iliac vein .Urethral lymph is very rich .Posterior urethral lymphatic drainage to the external iliac lymph node ,lymph nodes and pelvic lymph nodes .
Ejaculatory duct obstruction symptoms such as patient found the ejaculatory duct disease ,physician recommendations for early check to the hospital to visit to a definitive diagnosis ,targeted therapy, in order to achieve a good therapeutic effect .
Treatment of 1 patients with infertility history ,can have an orgasm or ejaculation not weakened sense of pain or weakness .2 may the reproductive system infection operation injury history .
3 examination impalpable vas deferens or epididymal nodule thickening Beaded change or absence of vas deferens :plugging easy which disease to confound with ?The differential diagnosis of such as fine as the main symptom ,need to identify testicular sperm and seminal duct blockage caused by azoospermia can testicular biopsy ,identification ,if the examination of testicular biopsies of normal ,should do vasography understanding vas patency of jam .
Related information on what is and vas deferens ejaculatory duct vas is a small cavity muscles on wall thickness pipeline ,long 30 - 50 centimeters .When living touch ,a round cords ,have certain hardness .
Vas deferens epididymis tail along the trailing edge in the testis ,ascending into the spermatic cord .After inguinal canal into the peritoneal cavity ,immediately into the small pelvis bend inward ,first along the basin side wall line to the rear ,after losing to the bladder urethra distal end above the bottom .
Here, both sides vas deferens gradually approaching ,and expanded into the ampulla of vas deferens .The lower portion of the vas deferens and seminal vesicle tapering of the excretory duct merged into the ejaculatory duct .
Ejaculation canal is about 2 centimeters long ,into the prostate gland ,opening in urethra prostate department .The vas deferens from testicular top end to a testicular blood vessels ,lymphatics ,neural tracing .
The structure and the outside of the package in the film ,composed of a soft round cable ,called the spermatic cord .During ejaculation ,sympathetic nerve endings release large amounts of neurotransmitters, the vas deferens to produce a series of strong coordination of contraction ,sperm rushed at the urinary tract .
As a result of ejaculatory duct is minimal ,moncler outlet,the ejaculation of semen is extruded and ejaculatory duct ,which caused the comfortable enjoyment of ejaculation .The vas deferens and ejaculatory duct is a direct continuation of the vas deferens epididymis .
Total length of about 50cm ,general left than right side slightly longer .Pipe wall thickness ,the lumen of small .About 3mm in diameter, has a certain hardness, often is the funicular ,in vivo is easy to touch .
The vas deferens of long stroke ,can be divided into four parts ,from the cauda epididymis testicular part ,shortest ,louboutin,along the trailing edge and the medial testicular epididymal rise ,in epididymis head height ,transitional to the spermatic part .
Spermatic part between the head of epididymis and the subcutaneous inguinal ring is located between the spermatic cord ,other components of the medial .The location of the superficial ,direct hidden in the skin, in vivo palpable ,vasectomy is often implemented in this .
Inguinal part from the subcutaneous inguinal ring through the inguinal ring into the pelvic transitional in basin of .Pelvic vas deferens most for a long ,along the pelvic side wall back downstream ,crossing to the distal ureter medial ,in the bladder and rectum bladder bottom between arrival ,both sides vas deferens in approaching ,tied to the prostate gland .
Vas deferens ends in a fusiform enlargement ,called the ampulla of vas deferens .Ampulla about 3 ～ 4cm,www.doudounemonclerofficialstore.com,the lumen of the width up to 7 ～ 10mm.Ampulla is tapering to base of prostate and seminal vesicle ,discharge manifold synthesis of fine of ejaculatory duct .
Vas deferens ejaculatory duct for the shortest period ,ca. 2cm ,into the prostate gland ,openings in the prostatic urethra .The vas deferens of tube wall from the inside to the outside from the mucosa ,myometrial and fibroid membrane .
Mucosa covered by columnar epithelium .Muscular layer is very thick ,louboutin pas cher,about l 5mm ,from the longitudinal ,central and outer longitudinal layer three muscle fiber composition ,myometrial contractility contributes to sperm discharged .
Fiber membrane composed of loose connective tissue ,blood vessels and nerve distribution in .Ejaculatory duct of the anatomical and physiological characteristics of what? Ejaculatory duct is very short, only 2cm long ,Homes for the elderly Five-guarantees is refers in,each side one .
Each root of vas deferens and seminal vesicle outlet end since merging with one another at the beginning, the downward through the ejaculatory duct ,the urethral crest verumontanum at both sides ,to the urethral opening .
Usually the ejaculatory duct empty ,when sexual life from testis ,epididymis ,vas deferens ,sperm ,as well as from seminal and prostate seminal was concentrated to the ejaculatory duct ,through the ejaculatory duct wall muscular contraction ,the semen into the urethra .
For reproductive function, located in the prostatic urethra after central line of the wall has a longitudinal ridge ,called the urethral crest ,crest central bulge of hummocky ,called the verumontanum ,www.piuminimonclernb.com.
Verumontanum mucosal surface and its vicinity there are two ejaculatory duct opening and many prostate duct opening .In addition ,there are many glandular openings around the urethra urethral mucosa ,sir sighed " ;,mainly in the anterior urethra ,urethral ball gland ,such as the paraurethral glands ,can secrete mucus ,play the role of lubrication .
Urethral ball gland fluid ,also form part of semen .Human reproductive system of human reproductive system is within the biology and reproductive closely related organ components .For example, the female reproductive system including hormone glands ,gametes ,,and and the vagina ,but does not include .