male reproductive system
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| what is the production of sperm called | spermatogenesis
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| where is the testes located at | they hang in the scrotum, posterior to the base of the penis
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| what is the tissue of the scrotum | Dartos
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| what is Dartos | A thin layer of smooth muscle,cause the characteristic wrinkling of the scrotal surface
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| what is the cremaster | a layer of skeletal muscle,that contract to pull the testes closer to the body.
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| where does the production of sperm begins at | semineferous tubules
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| sperm leaves a semineferous tubules through a maze called | rete testes
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| where does the male reproductive systems begins at | epididymus
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| where does sperm matures at | epididymus
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| how long is the sperm maturation | 2 weeks
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| what are the compounds of a sperm | head,middle,neck and tail
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| what is the sperm tail made of | flagella
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| what is the function of the head of the sperm | the head contains the enzymes for fertilization
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| what is the function of the neck of the sperm | neck attaches the head to the middle piece
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| what does the middle piece consist of | middle piece has a mitochondria spiral that holds the ATP energy to move the tail
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| what makes the tail of the sperm move | the tail is flagelum that moves the sperm from one place to another
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| what is the storage area for damaged or maturing sperm | epididymus
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| what is the ductus deferens | a passageway that carries sperm from the epididymus to the ejaculatory duct-40-45cm long
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| what makes up the ejaculatory duct | the juction of the ductus deferens and the seminal vesicles
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| what makes up 60% of the volume of semen in the seminal vesicles | fructose,fibrogen and prostaglandins
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| what is the function of the prostate gland | secretes a milky acidic fluid that makes up 30% of semen
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| what is the other name for the bulbourethal gland | cowpers gland
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| what is the function of the bulbourethral gland | secretes a thick sticky alkaline mucous that helps neutralize urinary acids in the uretha
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| what properties does the bulbourethral gland has | has lubricating properties
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| how many bulbourethral glands are there | 2- paired gland
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| what are the compounds of semen | seminal vesicles-60%prostate gland---30%epididymus & sustentacular cells-5%bulbourethral glands-5%
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| what is the normal sperm count | 20-100 million/ml
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| how much semen is expelled from the penis for each ejaculation | 2-5ml
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| what is the function of the penis | tubular organ which the urethra passes throughserves as a passageway for urine to exit the bodyintroduces semen into the female vagina during intercourse.
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| what is the penis composed of | root-fixed part that attaches penis to body/wallbody/shaft-contains erectile tissueglans-expanded distal end that surrounds the urethral opening
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| what is the foreskin called | prepuce
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| what does the foreskin covers | it is attached to the neck & covers the glans
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| what is surgical removal of the foreskin called | circumcision
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