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Ch 45
| Question | Answer |
|---|---|
| The reproductive ducts Include a pair of _____, paired vasa deferentia, a pair of ejaculatory ducts, and the urethra. | epididymides |
| What organs make up the accessory glands? | The accessory glands include a pair of seminal vesicles, one prostate, and a pair of bulbourethral glands |
| Supporting structures of the accessory glands include the ____, ____, and a pair of ______ cords. | scrotum, the penis, and a pair of spermatic cords. |
| Tunica albuginea encases each ____ | testis |
| Tunica aluginea sends out septa that divide the testis into ___ loubles | 200 |
| each lobule contains _____ cells and _____ tubules | interstitial cells and seminiferous tubules |
| the left testis generally is about ___ cm lower in the scrotal sac than the right | 1cm |
| Testosterone promotes development and maintenance of secondary sex characteristics, accessory organs, and ___________ | adult male behavior |
| Testosterone helps regulate _____ and stimulates protein ______ | metabolism , anabolism |
| Testosterone stimulates bone growth and promotes closure of the _____ | epiphyses |
| Testosterone plays a role in fluid and _____ balance | electrolyte |
| _____ hormone stimulates interstitial cells to increase testosterone secretion | Luteinizing |
| High blood concentration of testosterone inhibits hypothalamic secretion of | GnRH |
| The _____ has a very small diameter (just barely macroscopic), but it measures approximately 6 meters (20 feet) in length. | epididymis |
| _____ serves as energy source for sperm motility | fructose |
| The male gonads are known as the: | testes. |
| The region within a “triangle” created by the ischial tuberosities and the symphysis is the: | urogenital triangle. |
| Each testicular lobule contains: | seminiferous tubules, interstitial cells and Leydig cells |
| The blood-testis barrier is formed by tight junctions between which cells? | sustentacular cells |
| Sperm production occurs in the: | seminiferous tubules |
| Which hormone is responsible for the stimulation of sperm production? | follicle-stimulating hormone |
| The testes perform two primary functions: | spermatogenesis and secretion of hormones |
| _____ refers to the release of enzymes contained within the acrosome. | Capacitation |
| Testosterone is sometimes referred to as "___________" | “the anabolic hormone.” |
| The ejaculatory ducts are formed by the union of the: | seminal vesicles and vas deferens. |
| what accessory glands secrete(s) an alkaline substan | seminal vesicles and bulbourethral gland |
| seminal vesicles b. bulbourethral gland | prostate |
| The duct of the vas deferens is an extension of the tail of the _____ | epididymis |
| Sperm may be stored in the ____ _____ for up to a month with no loss of fertility. | vas deferens |
| A _____ is a procedure intended to render a man sterile. | vasectomy |
| The greatest amount of seminal fluid is secreted by the: | seminal vesicles |
| Elevation of the testes is caused by contraction of the: | cremaster muscle |
| Functional sterility results when sperm count falls below: | 25 million/mL of semen |
| Which of the following factors related to sperm does not affect male fertility? a. size b. shape c. texture d. motility | c. texture |
| Which of the following is not a supporting structure? a. penis b. scrotum c. prostate d. spermatic cord | c. prostate |
| The terminal end of the corpus spongiosum forms the glans ____ | penis |
| Decreased sperm production is called | oligospermia |
| Testes normally descend into the scrotum about __________________ before birth. | 2 months |
| If a baby is born with undescended testes, a condition called ____________________ results. | cryptorchidism |
| A common noncancerous condition of the prostate in older men is known as _______________ __________________ ______________________. | benign prostatic hypertrophy |
| _____________________ is a condition in which the foreskin fits so tightly over the glans that it cannot retract. | phimosis |
| Failure to achieve an erection of the penis is called ______________ or _____________ __________________________. | impotence; erectile dysfunction |
| An accumulation of fluid in the scrotum is known as a _____________________. | hydrocile |
| ____________________ _______________________ results when the intestines push through the weak area of the abdominal wall that separates the abdominopelvic cavity from the scrotum. | inguinal hernia |
| The testes are suspended outside the body cavity to do what? | keep them cooler |
| What is the removal of the foreskin from the glans penis called? | circumcision |
| The testes are surrounded by a tough membrane called the: | tunica albuginea |
| The _________ lie(s) near the septa that separate the lobules. | interstitial cells |
| Sperm are found in the walls of the _____ | seminiferous tubule |
| The scrotum provides an environment that is approximately _________ for the testes. | 3° C cooler than the body temperature |
| The ___________ produce(s) testosterone. | interstitial cells |
| The part of the sperm that contains genetic information that will be inherited is the: | head |
| Which one of the following is not a function of testosterone? a. It causes deepening of the voice. b. It promotes development of the male accessory organs. c. It has a stimulatory effect on protein catabolism | c. It has a stimulatory effect on protein catabolism |
| Sperm production is called: | spermatogenesis. |
| The section of the sperm that contains enzymes that enable it to break down the covering of the ovum and permit entry should contact occur is the: | acrosome |
| ______ continuation of ducts that start in the epididymis | vas deferens |
| ______ erectile tissue | corpus spongiosum |
| ______ also known as bulbourethral | Cowper glands |
| ______ narrow tube that lies along the top of and behind the testes | epididymis |
| ______ doughnut-shaped gland beneath the bladder | prostate gland |
| ______ union of the vas deferens with the ducts from the seminal vesicles | ejaculatory duct |
| ______ mixture of sperm and secretions of accessory sex glands | semen |
| _____ contributes 60% of the seminal fluid volume | seminal vesicles |
| ______ removed during circumcision | prepuce |
| ______ enclose the vas deferens, blood vessels, lymphatics, and nerves | spermatic cord |
| The _____ _____ Include a pair of epididymides, paired vasa deferentia, a pair of ejaculatory ducts, and the urethra. | reproductive ducts |
| What organs make up the accessory glands? | The accessory glands include a pair of seminal vesicles, one prostate, and a pair of bulbourethral glands. |
| Supporting structures include: | the scrotum, the penis, and a pair of spermatic cords. |
| Tunica albuginea encases each _____ | testis |
| Tunica albuginea sends out septa that divide the testis into how many lobules | 200 |
| Each lobule contains interstitial cells and _____ _____ | seminiferous tubules |
| ____ _____ drain the rete testis | Efferent ductules |
| The left testis generally is about ___ lower in the scrotal sac than the right. | 1 cm |
| _____ promotes development and maintenance of secondary sex characteristics, accessory organs, and adult male behavior | testosterone |
| _____ helps regulate metabolism stimulates protein anabolism | testosterone |
| _____ stimulates bone growth and promotes closure of the epiphyses | testosterone |
| ____ plays a role in fluid and electrolyte balance | testosterone |
| By stimulating protein anabolism, testosterone promotes the growth of ____ ____ (it is responsible for males’ greater muscular development and strength). | skeletal muscles |
| Early sexual maturation leads to early _____ closure. The converse also holds true: late sexual maturation, delayed epiphyseal closure, and tallness tend to go together. | epiphyseal |
| _____ has a mild stimulating effect on kidney tubule reabsorption of sodium and water; it also promotes kidney tubule excretion of potassium. | Testosterone |
| Stimulates interstitial cells to increase testosterone secretion | Luteinizing hormone |
| High blood concentration of testosterone inhibits hypothalamic secretion of ____ | GnRH |
| The _____has a very small diameter (just barely macroscopic), but it measures approximately 6 meters (20 feet) in length. | epididymis |
| Secrete an alkaline, viscous, creamy-yellow liquid (60% of semen volume) | Seminal Vesicles |
| Adds slightly acidic, watery, milky-looking secretion to seminal fluid (30% of semen volume) | Prostate gland |
| Nutrient for sperm | Citrate |
| In spermatoza, _____ occurs in sperm only after they have been introduced into the vagina | Capacitation |
| Undergo “ripening” before ejaculation | Spermatoza |
| the epididymis measures approx how many feet in length | 20 |
| what percent of of semen volume is the seminal Vesicles | 60% |
| what percent of of semen volume is the prostate gland | 30% |
Created by:
alucero