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Male Reproductive System, Accessory Glands responsive to androgens semen=gland secretions+ sperm ???? Sebaceous glands near skin of penis, Accessory Glands responsive to androgens semen=gland secretions+ sperm ???? Prostate gland 40 tubuloalveolar glands in 3 layers mucosal-these empty into urethra submucosal-empties w/ periph. peripheral-main prost. glands empty into post. wall of urethra through prostatic sinuses epith-mostly col, some cub, squam, pseudostrat fluid-citric acid, enzymes incl. acid phosphatase & fibrinolysin-keeps semen liquified concretions in older men-corpora amylacia Benign prost. hyperplasia-muc&submuc glands Prostate CA-very high in elderly-can metastasize, Accessory Glands responsive to androgens semen=gland secretions+ sperm ???? Glands of Littre mucu secretion to penile urethra, Epididymus ???? Att. to post/sup testis contains eff. ductules (head) Head, body, tail highly coiled throughout pseudostrat epith high(principal) cells-stereocilia absorption low(basal) cells-circ nuc, stem c. sperm become mobile glycoproteins added to glycocalyx from princ. cells-decapacitation, Penis ???? Delivers sperm&semen 2 dorsal erectile tissue masses -corpora cavernosa 1 ventral erectile mass -corpus spongiosum Both contain helicine aa. Point-erection-parasympa NS Shoot-ejaculation-sympa NS, Testes Capsule Tunica albuginea-thick dense CT Tunica vasculosa-inner part thickens in post. part-mediastinum CT septa from Tun. Alb. div into lobules, 3. Spermiogenesis->'zoa 'tids transformed in 4 phases embedded in sertoli cells ???? 1st phase- Golgi Phase acrosomal vesicle forms proacrosomal granules coalesce in golgi this is anterior pole centrioles from nuc. to post. pole - form axonemal complex of tail tail towards base of tubule, Spermatogenesis ???? 3. Spermiogenesis->'zoa 'tids transformed in 4 phases embedded in sertoli cells, Testes ???? Produce sperm&androgens Descend from abd during devel in scrotum at end of sperm cord thermal regulation, 3rd phase-Acrosome phase 'tid reorients self-tail towards lumen nuc. immed under acrosome cap connecting piece from flag to nuc. middle, principal, end piece form make complete tail mitochondria in middle piece ???? 4th phase-Maturation phase excess cytoplasm sloughed thus Sertoli cells release 'tids sperm into lumen