CAPS 390 Lecture Notes - Lecture 33: Semen, Serous Fluid, Meiosis
18 Nov 2015
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**note: you will not be tested on embryology of the female and male reproductive systems. Lecture 33 male reproductive i, nov 19, 2014 (dr. roskelley) Testis: exocrine secretion (spermatozoa from seminiferous tubules) Endocrine secretion (testosterone from leydig cells) Genital ducts: intra and extra- testicular functions (vas deferens) Accessory genital glands: exocrine (prostate) Penis: semen delivery and urine conduit. Surrounded dense irregular c. t. capsule (= tunica albuginea; thick and collagen rich) Septae (dense irregular c. t) divides testicular tissue into lobules. Lobules consist of : a) loose c. t. that is highly vascularized: many fenestrated capillaries; contains clusters of leydig cells within the. Contain myoid cells on the outside: slightly contractile fibroblasts. Spermatogenesis is more efficient at slightly lower than the core body temperature (35 c) Occurs from basal to luminal across the seminiferous epithelium. Developing germ cells contact each other with cytoplasmic bridges, and contact. Sertoli cells via specialized cell- cell junctions (modified adherent junctions)
