Anatomy- Male reproductive system by swimifishi
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| What term refers to the primary sex organs? (Both male and female) | Gonads | ||||
| What term is used to identify sex cells? | Gametes | ||||
| What is another word for the female egg? | Ova | ||||
| Testis-Size? | 1.5 inch long-1 inch wide | ||||
| Testis-Shape? | Oval | ||||
| Testis-Function? | Produce sperm | ||||
| Define tunica albuginea | "White Coat" Capsule that surrounds each of the testis | ||||
| Define septa | estensions of the capsule that extend into the testis and divide it into lobules | ||||
| Where are the seminiferous tubules? | found in each lobule of the testes | ||||
| What is the fuction of the seminiferous tubules? | function as sperm-forming factories that emplty sperm into the rete testis | ||||
| Where is testosterone produced? | intersitial cells produce androgens such as testosterone | ||||
| Rete Testis is between the ___ and ___ | Seminiferous tubules and epididymus | ||||
| Epididymus-Function? | mature and store sperm cells (at least 20 days) | ||||
| Edididymus-Location? | found on the superiro part of the testis and along to posterior lateral side | ||||
| Epididymus-Length? | nineteen feet | ||||
| How long does it take the sperm to travel through the epididymus? | 20 days | ||||
| Where is the sperm drawn after it leaves the epididymus? | contractions of the muscles in the epididymus walls expel sperm to the vas deferens | ||||
| What is the pathway of sperm? | epididymis ductus deferens urethra | ||||
| List 3 parts of the male reproductive "duct" system | epididymus ductus deferens urethra | ||||
| Urethra-extends from the base of the ___ to the tip of ___ | urinary bladder-penis | ||||
| List the 3 regions of the urethra | Prostatic urethra-surrounded by the prostate Membranous urethra-from prostatic urethra to penis Spongy (penile) urethra-runs the length of the penis | ||||
| What physically happens to the spongy urethra during sexual excitement? | becomes engorged with blood causing the penis to expand and become stiffer and straighter | ||||
| Where is the seminal vesicle located? | base of the bladder | ||||
| Seminal vesicle (60% volume of___) | semen | ||||
| List three substances secreted by the seminal vesicle | fructose (sugar) vitamin C Prostaglandins | ||||
| define prostaglandin | a hormone causing increased blood flow to the penis | ||||
| Prostate gland-Shape? | walnut shaped | ||||
| Prostate gland-Location? | base of the bladder, surrounding the urethra | ||||
| What blood test is used to detect prostate cancer? | PSA- tests the amount of prostate-specific antigen | ||||
| What are 3 possible symptoms of prostate cancer? | problems urinating feeling that your bladder is not empty pain when you orgasm rarely, blood in the urine | ||||
| What kind of doctor deals with concerns of the prostate gland? | urologist | ||||
| What are 2 key functions of the bulborethral gland? | cleanses the urethra of acidic urine serves as a lubricant during sexual intercourse | ||||
| What substance gives sperm the ability to swim? Where does it come from? | semen-a mixture of sperm +accesory gland secretions | ||||
| Why is sperm alkaline? | the alkalinity of semen helps neutralize the acidic environment of the vagina | ||||
| On average, how much semen is released during ejaculation? | half-teaspoon | ||||
| How many sperm are released on ejaculation? | 40 million to 600 million sperm | ||||
| List the 3 primary accessory organs of the male reproductive organs | epididymis ductus deferens urethra | ||||
| What are 3 external genitalia of the male reproductive system? | penis scrotum testicles | ||||
| What is another name for the cowper's gland? | bulborethral gland | ||||
| At what temperature are the sperm most viable? | 3 degrees cooler than body temperature | ||||
| List 3 regions of the penis | shaft glans penis (enlarged tip) prepuce | ||||
| Define spermatogenesis | production of sperm cells which occurs in the seminiferous tubules-process where excess cytoplasm is stripped away and a tail forms | ||||
| List 5 factors that can cause a decreased sperm count. | 1. obstruction of the duct system. 2. Hormonal imbalance. 3. pesticides. 4. excessive alcohol 5. ph imbalance |
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Created by:
swimifishi
on 2007-04-28