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intro to repo
male and female reproductive organs and functions
| Question | Answer |
|---|---|
| testes | paired bilateral ovoid shaped structures 5 cm long and 3cm diameter, suspended by spermatic cord and contained within a sac like structure |
| function of testes | produce sperm & testosterone |
| epididymis | tightly coiled tube that emerges from the top of each testis descends alon its posterior surface and leads into the vas deferens |
| function of epididymis | stores sperm cells until they mature |
| Vas Deferens | muscular tube about 46 centimeters long that passes along the medial side of the testis, upward through theinguinal canal into the abdominal cavity. enclosed in a connective tissue sheath along with nerves and blood vessels called spermatic cord,... |
| where does it end? | behind the urinary bladder, where it joins the duct from the seinal vesicle to form the ejactulatory duct |
| function of vas deferens | transports sperm |
| seminal vesicle | convoluted sac like structure about five centimeters along attached to each vas deferens at the base of the gbladder, |
| function of seminal vessicle | secretes a slightly alkaline fuid rich in fructose and othernutrients for the sperm cells produces 60 % of volume of semen |
| ejaculatory duct | short tube about 1 inch long beginning at the semnal vesicle and ending in the prostate gland |
| function of ejaculatory duct | transport sperm and seminal fluid to the urethra |
| prostate | firm structure, size of chestnut that surrounds the beginnin of the urethra just below the urinary bladder, composed of muscular and glandular tissue |
| function of prostate | secretes thin milky alkaline fluid which neutralizes semen enhances sperm motility and helps to neutralize the acidic secretions of vagina. often hypertophies with age expanding around urethra and making voidin difficult |
| cowper's gland | bulbourethral gland, two pea sized structures located below the prostategland under the male ureythra |
| function | secretes a mucus like fluid that partly lubricates theend of the penis in preparation for intercourse. corresponds to the bartholin's in women to provide lubrication during sexual intercourse |
| wha tis vasectomy | severs the vas deferens to prevent transport of semen for birth control |
| what happens if the prostate is enlarged? | urethra is constrcited making urination difficult |
| scrotum | sac like structure that likes suspended from the exterior abdominal region behind the penis, subdivided into two separate chambers by a medial suptum, each chamber encloses a testis, |
| function of scrotum | to provide a cooler hom for the testes in order to assure sperm survival, sperm need to develop in a region that is 2-3 degrees lower thn body temperature |
| penis | cylindrical in shape , three columns of erectile tissue in shaft, porpora cavernosa, corpus spngiosum, at distal end is glans |
| function | it convers urin and semen through the urethra and is specialized to become erect for insertion into the vagina during sexual intercourse |
| corpora cavernosa | a pair of dorsallly located cylinders of erectile tissue |
| corpus spngiosum | single cuyoinder of erectile tissue that surrounds the urethra and forms the glans penis |
| can the type of underwear worn by a man unfluence the sperm count? | yet by holding the testes close to the body , thereby increasin the temperature |
| Ovaries | soid ovoid (gonads) about the size of and shape of almonds, two sections of inner medulla and outer cortex, located bilateral to the uterus immediateley inferior to the fallopian tubes |
| function of ovaries | at puberty release progesterone and fproduces the female sex hormone, estrogen. releases a mature egg cell during the menstrual cycle |
| uterin(fallopian) tubes or oviducts | pair of ducts opening at one end into the fundus and the other end into the peritoneal cavity over the ovary |
| function of the oviducts | after ovulation the discharged ovum first enters the abdominal cavity where the egbg cell is assisted into the uterine tube by the wavelike movement of the finbria3e and the beating of the cilia on their surface and on the wall of the tube. |
| how does the egg move to the uterus? | the cilia in the tube and peristaltic cont4ractions of its wall move the egg cell on to the uterus |
| uterus | muscular hollow shaped like an inverted pear shaped organ, situated b/w the urinary bladder and rectum, corpus, fundus, cervix, uterine wall |
| corpus, body of uterus? | larger midsectrion or upper two thirds of the uterus |
| fundus | upper rounded portion of the body superior to the uterine (fallopian) tubes, is the insertion site of the tubes |
| cervix? | smaller narrow inferior one third of the uterus that extends into hte upper portion of the vagina |
| layers of the uterine wall, what is endo metrium? | endometrium, inner mucosal layer that lines uterine cavity |
| what is myometrium | myometrium thick muscular layer along with endometrium undergoes extreme changes during pregnancy and female monthly feproductive cycles |
| perimetrium | perimetrium serosal layer covering part of the cervix as well as the body |
| function of uterus | receives the embryo and sustains its life during development during pregnancy can enlarge up to 500 times |
| vagina | thin walled muscular tublike about 3 inches long the superior portion attaches to the cervix of the uterus and inferior portion opens to the outside, lined with mucosa, walls of rugae, enables vaina to stretch during intercourse and passage for childbirth |
| function | receives the erect penis during intercourse conveys uterine secretions and transports the offspring during birth |
| what is tubes tied? | closing the fallopian tube so that the egg cannot be fertizlized or pass into the uterus |
| external female genitalia | labia majora, labia minora, clitoris |
| labia majora | rounded folds of fatty tissue that extends from the mons pubis to the perineal floor, anterior ends form a runded mound ofatty tissue superiro to the symphysis pubis know as the mons pubis |
| function of labia majora | protects inner structures and contain sensory nerve endings sebaceous and sdoriferous sweat glands |
| labia minora | smaller flattened longitudinal folds devoid of hair that merge anteriorly to form the prepuce of the clitoris, function to ptrotect the openings of the vagina and urethra |
| clitoris | sexual arousal |
| vestibule | space enclosing the structure located beneath the labia minora, houses the vainal orifice, urehtral orifice, hymen and clitoris |
| accesory glands | paraurethral or sken's glans responsible for secretion of mucus and similar to the male prostate gland, bartholin's glands or vestibular lubricate the vagina for sexual intercourse, |
| perineum | diamond shaped area from the symphysis pubis and extends to the anus. a region that contains the reproductive structures |
| mammary glands | subcutaneous tissue of the anterior thorax, within the breasts, overlyin the pecoralis major muscle, they are compose of a out 15-20 lobes. |
| what is in each lobe? | each lobe contains many lobules that contain milk producing cells that lead to lactiferous ducts that exits the vreast at the nipple. the llobes are separated by dense connectrive and adipose tissues. the amount of adipose tissue determins breast size. |
| function of the mammry glands | specialized to secrete milk following pregnancy under the influence of prolactin milk is formed the homone oxytocin allows the mil to be released. |
Created by:
redhawk101
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