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Reproductive System
LAB Study Stack
Question | Answer |
---|---|
List the two principal functions of the testis | Sperm production & testosterone production |
A common part of any physical exam of the male is palpation of the prostate. How? | Through the anterior wall of the rectum |
How might enlargement of the prostate interfere with urine or the reproductive ability of the male? | It may compress the urethra which can interfere with elimination of urine & semen. |
Why are the testes located in the scrotum rather than inside the ventral body cavity? | In order for sperm to develop the temperature in the testes needs to be 3 degrees below body temperature. |
copulatory organ/penetrating device | penis |
muscular passageway conveying sperm to the ejaculatory duct; in the spermatic cord | ductus deferns |
transports both sperm and urine | spongy urethra |
sperm maturation site | epidymis |
location of the testis in adult males | scrotum |
location of the testis in adult males | scrotum |
loose fold of skin encircling the glans penis | prepuce |
portion of the urethra between the prostate and the penis | membranous urethra |
Empties a secretion into the prostatic urethra | Prostate |
Empties a secretion into themembranous urethra | bulbourethral glands |
Describe the composition of semen and name all structures contributing to its formation | An alkaline fluid containing sperm and seminal fluid. Prostate; paired seminal vescicles (fructose) bulbourethral glands (seminal fluid) testes produce sperm |
Of what importance is the fact that seminal fluid is alkaline? | It buffers sperm against the acidity of the female reporductive system & washes residual urine out of the urethra |
What structures compose the spermatic cord? | Ductus deferens, blood vessels, nerves, lymph vessels; connective tissue sheath |
Where is the spermatic cord located? | Scrotum- passes from the scrotal sac thru the inguinal canal into an abdominal cavity |
Trace the pathway of sperm from testes to the urethra; | Seminiferous Tubule; rete testis; epididymis; ductus deferens. |
Name the structures composing the external genitalia or vulva of the female; | Mons pubis, labia major & minor, clitoris, urethral & vaginal orafices, hymen, greater vestibular glands |
Site of fetal development | uterus |
copulatory canal | vagina |
"fertilized egg" typically formed here | uterine tube |
become erect during secual excitement | clitoris |
duct extending superolaterally from the uterus | uterine tubes |
partially sloses the vaginal canal; a membrane | hymen |
Produces oocytes, estrogens and progesterone | ovaries |
fingerlike ends of the uterine tube | fimbriae |
Do any sperm enter the pelvic cavity of the female? Why or Why not? | Yes, because the ideal place for sperm to fertilize an egg is the uterine tube. |
What is an ectopic pregnancy? | An ectopic pregnancy is when a fertilized egg implants outside of the uterus. Usually unsuccessful and may endanger the mother's life |
Put the vestibular-perineal structures in proper order from anterior to posterior:Vaginal orifice, anus, urethral opening and clitoris | clitoris; urethral opening; vaginal orafice; anus |
After copulation, trace the pathway of sperm thru the female reproductive tract; | vagina; cervix; uterus; uterine tube; peritoneal cavity |
Define ovulation; | When a developed egg is ejected from the ovary |
The testis is divided into a number of lobes lobes contains one to four ____________________ which converge to empty sperm into another set of tubules called the ____________________. | highly coiled seminiferous tubules; rete testis |
What is the function of the cavernous bodies seen in the male penis? | The cavernous bodies engorge w/blood and cause the penis to become rigid & enlarge so it can penetrate "erection" |
Name the 3 layers of the uterine wall from the inside out; | endometrium; myometrium; perimetrium |
Which lining sloughs off during menstruation? | endometrium |
Which lining contracts during childbirth? | myometrium |
What is the function of the stereocilia exhibited by the epithelial cells of the mucosa of the epididymis? | These non-motile microvilli absorb excess fluid & pass nutrients to the sperm in the lumen |