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Male Reproductive

Quiz yourself by thinking what should be in each of the black spaces below before clicking on it to display the answer.
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Question
Answer
show seminiferous tubules, epididymis, epididymis and vas deferens  
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At ejaculation, sperm are forced through the ____, into the abdomen via the ____, and around behind the _____.   show
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There are two vas deferens each joined by a _____, and then meet in the ____, within the _____.   show
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show seminal vesicle, prostate, urethra  
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Sperm are _____ int he testes, ____ in the spididymis, and ____ through the vas deferens and urethra _____ the body.   show
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There are ______ seminiferous tubules in each testis, all draining into the ______   show
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A layer of germ cells, called _______, surrounds the seminiferous tubule.   show
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show spermatocytes  
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spermatocytes are enveloped by the _____, pass through the _____ and develop into sperm.   show
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show 10 weeks  
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Two hormones that stimulate Sertoli Cells.   show
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Sertoli Cells develop tight junctions with neighboring Sertoli Cells forming _____   show
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_____ hold the developing spermatocytes within folds of their surface and translocate them to the lumen   show
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Sertoli cells consume the excess ____ of the spermatocyte.   show
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The acrosome contains these enzymes   show
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The function of the acrosome   show
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The tail/flagellum of the sperm provides the motile force allowing it to swim at this speed.   show
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An adult male produces _____ sperm per day   show
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show 18-24 hours, prevent  
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show About a month, vas deferens  
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Seminal vesicles are paired glandular structures that secrete ____, ____, and ____ in a mucus base   show
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Semen volume at ejaculation contain _____ of total volume from the seminal vesicles   show
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Prostaglandins is thought to have two functions:   show
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Spongy, golf ball-sized gland surrounding the urethra just below the bladder   show
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The Prostate gland has an alkaline secretion that contains ____, ____, ____, and high concentrations of _____   show
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show 30%  
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show protect the sperm from the vaginal acit  
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The prostate gland secretes zinc which   show
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The physiologic goal of penis erection   show
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Parasympathetic neurons to the penis release   show
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show vasodilation of the local arteries and relaxation of smooth muscle fiber meshwork of the spongy areas of the penis  
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show sexual excitement, restricted  
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show blocking PDE5, thus the vasodilation and erection remains longer  
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show sympathetic, T12-L2  
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show initiate rapid peristaltic contractions of the vas deferens, seminal vesicles, prostate glands and muscles at the base of the penis.  
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Semen volume is about _____.   show
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At ejaculation sperm are _____ of fertilization   show
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The development of sperm function is called   show
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Capacitation involves   show
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show hyaluronidase  
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show zona pellucida  
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Binding of the sperm to the surface of the egg releases _____ enzymes, which cut into the egg   show
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show Ca++ channels  
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show prevents further sperm entry into the egg.  
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show 50-100 million  
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Sperm on the outside are killed by _____, their bodies help   show
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show her immune system cells attach and kill them  
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show his sperm  
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show more enzymatic digestion is required than one acrosome can provide  
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The head of a sperm is about ____ in length and the tail in another ____. From cervix through uterus to the egg is _____   show
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show Leydig cells (intersitial cells)  
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Testosterone is carried in the blood tightly bound to   show
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With hours testosterone is either absorbed by ____ or___   show
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testosterone is processed in the ___ and excreted in the ___ or ____   show
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During fetal development testosterone has two functions   show
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During puberty and adulthood testosterone functions to   show
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Testosterone patterns in life   show
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Gonadotropin-releasing hormone (GnRH) from the ______ enters the portal system to the ____   show
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show LH and FSH  
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LH stimulates _____ to secrete _____   show
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FSH stimulates ______ of the seminiferous tubules to develop ______   show
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_____ and _____ provide feedback inhibition of hypothalmis and pituitary release   show
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show Physical barrier between sperm and egg, block transfer of sperm, reduce spread of HIV and STDs  
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show cut and seal off vas deferens, 30 min operation, high success rate, sperm produced and stored and die in the epididymis, not change in circulating testosterone, no autoimmune disease  
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show testosterone  
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Future Male Contraception Depo-provera injections   show
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show reversible injection of styrene gel into the vas deferens  
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show bind toand inactivate receptors (down regulation)  
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Future Male Contraception Adjudin   show
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Future Male Contraception Various alpha blockers   show
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Future Male Contraception Calcium channel blockers   show
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Future Male Contraception Gossypol   show
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show Testosterone or a dirivative, eother injected or with added side-chain  
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show increase muscle mass  
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Possible side effects to exogenous anabolic steroids   show
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show all effects as is men, PLUS male pattern body hair, deeper voice, blocked ovulation, miscarriage and fetal damage.  
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