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lecture notes for "Men's Bodies" sorted under title slide headings :)

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University of Toronto Mississauga
Ayesha Khan

Internal structures of the erect penis -The penis and the clitoris are developmentally similar -corpous cavernosum surrounded by the tunica albuginea which further contributes to erectile properties of the shaft -2 muscles associated with the penis, the ischiocavernosus and bulbospongiosus muscles, assist with erection and ejaculation -of the end most portion of the glans, tube that allows for elimination and excretion of sperm and urine urethral meatus Medical problem associated with the penis -it is = inflammation -HPV can cause cancer in the penis The male reproductive tract -scrotum located behind the penis and contains the testicles -in adult males, lots of sweat glands around the scrotum -shape and size of scrotum changes around puberty -the production of sperm needs to take place at a cooler temperature (4-7 degrees cooler than the body) -sweat glands in scrotum region help to maintain temperature The scrotum and its contents -first place where sperm start to leave once mature epididymis -spermatic cord often suggested to be the lifeline of the testis -connects the testis to the abdominal cavity and provides nutrition to the testis through the exposure of blood -has a sheet-like covering of connective tissue that surrounds it -if connective tissue rips there could be a lot of pain -contains lots of arteries, nerves and veins -cremaster muscle striated muscle light and dark bands (striations) -important for movement of the testicles -pulls testicles closer to body if exposed to cold harsh environment fore example -vas deferens runs throughout male reproductive system -carry mature sperm away from the epididymis and urine away from the bladder -flowing blood also provides temperature regulation flowing blood produces heat Internal structure of the testis and epididymis -site of sperm production seminiferous tubule -sertoli and leydig cells important for hormone production -sertoli cells start to produce hormones which go up to the brain of the fetus and start differentiating the male brain from the female brain -have impact and start cell differentiation -leydig cells produce similar hormones as sertoli -contribute to sex differentiation
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