Anatomy and Cell Biology 3309 Lecture Notes - Lecture 16: Tight Junction, Prolactin, Rate Limiting
29 Mar 2017
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Conduction system is also used by male germ cells (located in testis) Sperm epididymis urethra external environment: epididymis: convoluted duct system where spermatozoa is stored bw ejaculation. & acquire certain characteristics: seminal vesicle, prostate gland, bulbourethral gland: release things that make up the bulk of the semen. Each contains up to 4 loop-like, epithelial-lined tubules: highly convoluted tubules, open end of tubules communicate with network of passageways rete testis , once spermatozoa is formed, they leave through epididymis, ductuli efferentes, The combined length of seminiferous tubules in both testes averages >1000m! The testis is enclosed by a dict capsule (tunica albuginea) and contains 250-300 lobules with 1-4 seminiferous tubules each: lots of collagen lots of white areas. Seminiferous tubules: made up of modified stratified cuboidal epithelium that houses germ cells: surrounded by ct and sm. Wall contains of nuclei: sertoli cells: cells that make up the epithelium. They"re attached to one another via cytoplasmic processes.
