扬州大学：《组织胚胎学》课程教学课件（讲稿）男性生殖系统 Male reprod system

Male ReprodsrireSysren(nrteBiaelaryowizltaidendeerrnyMaleReproductive SystemFrrtZrechapTnoysCAeTwoswyrmaaReafHrdutnFjondrorySrgsanDaroePresrnEpatwhwslandknifensJestsToibaSerenn

Male Reproductive System

Constitution of male reproductive systemGenital gland ----testis : producing sperm and hormoneGenital ductsEpididymis / ductus deferens (vas deferens) /Ejaculatory ducts/urinary ductsperm maturation, storage, sperm passage during ejaculationAccessory sex glandsprostate glandSeminal vesicleBulbourethral glandstheir secretions,togetherwith sperm, form semenPenis and scrotum

Genital gland -testis : producing sperm and hormone Genital ducts Epididymis / ductus deferens (vas deferens) / Ejaculatory ducts/ urinary duct sperm maturation, storage, sperm passage during ejaculation Accessory sex glands prostate gland Seminal vesicle Bulbourethral glands their secretions, together with sperm, form semen Penis and scrotum Constitution of male reproductive system

Male reproductive system>TestisGenitalductsAccessory sexglandsSummary

Male reproductive system Testis Genital ducts Accessory sex glands Summary

1. TestisFunctionallyboth exocrine & endocrine glands·Producing sex cells and hormonesGeneral structureSeminiferous TubuleTesticular Interstitium

1. Testis • Functionally both exocrine & endocrine glands • Producing sex cells and hormones  General structure  Seminiferous Tubule  Testicular Interstitium

(l)General structureCapsule:tunica albuginea,mediastinum testis,septulumtestisinto250testicularlobulesSeminiferous Tubule: producing spermParenchymastraight tubule (Tubulus rectus),Retetestis,Efferent ductulesTesticular Interstitium:producing androgens by Leydig cellSeminiferoustubuleEfferentductulesInterstitial tissueCapsuleRete testisTubulus rectusseptulum

(1)General structure Capsule: tunica albuginea, mediastinum testis, septulum testis into 250 testicular lobules Seminiferous Tubule: producing sperm Parenchyma straight tubule (Tubulus rectus), Rete testis, Efferent ductules Testicular Interstitium: producing androgens by Leydig cell Capsule Seminiferous tubule Tubulus rectus Interstitial tissue Rete testis Efferent ductules septulum

estisH&Ecavity of thetunicavaginalistunica albugineaseniniferousepitheliuncomvolutedseminiferoustubules

Compartmentalization of TesticularparenchymaSeminiferous tubules:*the site of germ cell production* total of 800-1600 tubules about 600 M* 66% of the testicular volumenterstitial area:*Leydig cells which produce testosterone*CT; cap

Compartmentalization of Testicular parenchyma •Seminiferous tubules: *the site of germ cell production * total of 800-1600 tubules about 600 M * 66% of the testicular volume •Interstitial area: *Leydig cells which produce testosterone *CT; cap

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