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