Male Reproductive
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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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Created by:
tackron