男女生殖系 组织学与胚胎学课件.ppt
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1、2023/4/2,1,HISTOLOGY&EMBRYOLOGYMale and Female Reproductive Systems,2023/4/2,2,2023/4/2,3,Reproductive System,Sex,Gender,ReproductionGerm Cells:sperm and ovum(haploid)Sex Hormones:Male-Androgens(Testosterone)Female-Estrogen,ProgestogenDevelopmental Stages:infant,child,puberty,adult,menopause and old
2、,2023/4/2,4,2023/4/2,5,2023/4/2,6,2023/4/2,7,Male Reproductive System,Testis:producing sperm and hormoneEpididymis:sperm maturation,storageVas deferens:sperm passage during ejaculationAccessory glands(prostate,seminal vesicle,bulbourethral gland):seminal plasma-environment for spermsPenis and scrotu
3、m,2023/4/2,8,2023/4/2,9,2023/4/2,10,2023/4/2,11,TESTISa pair in scrotum,Capsule:tunica vaginalis,albuginea and vasculosa,mediastinum testis&septulum testis into 250 testicular lobulesSeminiferous Tubule producing spermTesticular Interstitium producing androgens by Leydig cell,2023/4/2,12,2023/4/2,13
4、,Seminiferous Tubules,Spermatogenic Cells-spermatogonia-primary spermatocyte-secondary spermatocyte-spermatid-testicular spermSertoli Cell,2023/4/2,14,2023/4/2,15,Spermatogenesis,Stage 1:spermatogonia mitosis(5)Stage 2:spermatocyte meiosis(2)Stage 3:spermiogenesis-round spermatid-elongated spermatid
5、-testicular sperm(no motility,no fertilizing capability),2023/4/2,16,2023/4/2,17,2023/4/2,18,SPERM,Condensed nucleus with haploid(X/Y)Flagellum and mitochondrial sheathAcrosome containing enzymesMembrane with ovum-recognizing ligand,2023/4/2,19,2023/4/2,20,Sertoli Cell,Support and nutritionBlood-tes
6、tis BarrierSecretion:Androgen Binding Protein InhibinPhagocytosis,2023/4/2,21,2023/4/2,22,2023/4/2,23,Leydig Cell in Interstitium,Steroid-producing cell structureAndrogens:spermatogenesis/secondary sexual characteristic developmentHormonal regulation-Hypothalamus GnRH-Pituitary Gland FSH LH(ICSH)-Te
7、stis Sertoli Leydig,2023/4/2,24,2023/4/2,25,2023/4/2,26,Sperm Passage,Tubules rectusRete testisEfferent ductulesDuctus epididymisVas deferensUrethra,2023/4/2,27,Epididymis,Efferent ductules:principal cell with cilia&glandular cellDuctus epididymis:pseudostratified columnar cell with sterociliaMicroe
8、nvironment for sperm maturation-motility-fertilizing capability,2023/4/2,28,2023/4/2,29,2023/4/2,30,2023/4/2,31,2023/4/2,32,Semen sperm+seminal plasma,Sperm count,motility and morphologySeminal plasma(pH 7.4,2-6 ml)-bulbourethral gland:lubricate-prostate:ACP,Enzymes,PSP-seminal vesicle:fructose,deca
9、pacitation factor,coagulation factor,2023/4/2,33,Female Reproductive System,Menstrual Cycle(bleeding monthly)and significant developmental stagesOvum productionEstrogen/progestogen secretionEmbryo developmentFetal breast-feeding,2023/4/2,34,2023/4/2,35,Female Reproductive System,Ovary producing ovum
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