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human sexuality 2-4
male female anatamy/desire
| Question | Answer |
|---|---|
| Vulva | all female external genital structures |
| Mons Veneris (latin for "mound of Venus") | Triangular mound over the pubic bone |
| Labia majora (outer lips) | Extend downward from mons veneris on each side of the vulva |
| Labia minora(inner lips) | Located within outer lips and may protrude between them. |
| what does the labia minora contain? | sweat glands, blood vessels, and nerve endings |
| description of the Labia minora? | Hairless folds of skin that join at hte prepuce (clitoral hood) and extend down past urinary and vaginal openings. |
| Clitoris | Highly sensitive structure of the female external genitals. |
| what is the only organ in the human body whose only function is pleasure? | Clitoris |
| Perineum | Aria of skin between the vaginal opening and the anus |
| Circumcision | cutting off the clitoral hood |
| Genital infibulation | *Removal of the clitoris *Labia are cut off *Both sides of the vulva are stitched together |
| what procedures are done without anesthetics, disinfectants, or sterile instruments? | Genital infibulation *removal of the clitoris *labia are cut off *both sides of the vulva are stitched together |
| how big is a vagina? | *approx. 3-5 in. long--can elongate during arousal, stretch during childbirth, etc. |
| How many and what are the layers of the vagina? | 3 layers: mucous,muscle,fibrous |
| what is the vaginas purpose? | arousal and vaginal lubrication |
| where is the cervix located? | at the upper/back end of the vagina and leads into the uterus |
| how much does the cervix dilate during child birth? | dilates to 10cm opening during labor and birth |
| what is a uterus? | hollow, thick, pear-shaped organ |
| how big is a uterus? | 3 in. long, 2 in. wide in woman who have not had a child. |
| how many layers does a uterus wall have? | 3 layers |
| overies | endocrine glands that produce ova(eggs) and sex hormones |
| how many and what hormones does the ovaries produce? | 3 types of hormones produced: estrogen's, progesterone's, testosterone |
| Mammography | X-ray of the breast |
| what is a mammography used for? | to detect breast lump before it can be felt manually. early detection increases survival |
| how often should you get a mammography? | its recommended for women over 50 to get one yearly |
| what does the 5 year survival rate say? | survival rate is lower for minority women than for white women. probably due to lack of access to preventable care. |
| Penis | consists of internal root, external shaft, and glans |
| root | the portion of the penis that extends internally into the pelvic cavity |
| shaft | the length of the penis between the glans and the body |
| cavernous bodies | the structures in the shaft of the penis that engorge with blood during sexual arousal |
| spongy body | a cylinder that forms a bulb at the base of the penis, extends up into the penile shaft, and forms the penile glans. also engorge with blood during arousal |
| Foreskin | a covering of skin over the penile glans |
| Corona | the rim of the penile glans |
| Frenulum | thin strip of skin connecting the glans to the shaft on the underside of the penis |
| Scrotum (or scrotal sac) | pouch of skin that encloses the testes. two chambers in the scrotum each contains one testis |
| how many layers in the scrotum? | two layers: skin layers and muscle layers(tunica dartos) |
| how is the scrotum usually positioned? | normally hangs loosely from body wall -cold temps and sexual stimulation will cause it to move closer to the body |
| testis | male gonad inside scrotum that produces sperm and sex hormones |
| what two functions does the testis have? | secrete male hormones produce sperm: must hang below body for them to be at the proper temp for sperm production. |
| spermatic cord | a cord attached to the testis inside the scrotum that contains the vas deferens, blood vessels, nerves, and muscle fibers |
| seminiferous tubules | thin, highly coiled structures where sperm production occurs |
| epididymis | site of sperm maturation runs along back of testis |
| vas deferens | sperm-carrying tube begins at the testis and ends at the urethra |
| Prostate gland | walnut-sixed gland at the base of the bladder. Secrete milky, alkaline fluid that makes up about 30% of volume of semen released during ejaculation |
| cowpers gland | secrete an alkaline fluid during sexual arousal. Not the same as semen; released before ejaculation (pre-cum) thought to counteract acidity of male urethra and help lubricate flow of semen through the urethra |
| how many sperm per ejaculation? | between 200-500 million sperm per ejaculation |
| what percent of the total volume of ejaculation is sperm? | about 1% of total volume |
| ejaculation | the process by which semen is expelled through the penis outside the body. |
| are ejaculation and orgasm the same thing? | ejaculation is a separate process from orgasm, and the two may not always occur simultaneously |
| is it possible for men to experience multiple orgasms without ejaculation? | yes |
| what are the two stages of ejaculation? | emission phase: semen collects in the urethral bulb expulsion phase: semen is expelled |
| what are the medical benefits of a circumcision? | -reduced rate of penile cancer -more sterile less of a risk of uti and std |
| what are the medical risks of circumcision? | effects of sexual function are unclear possible surgical complications pain during circumcision |
| penile cancer | one of the rarest forms of cancer |
| testicular cancer | only 1% of cancers that occur in males one of the most common cancers that occur in young men 15-34 |
| prostate cancer | 200,000 men diagnosed and 30,000 die each year in U.S. one of the most frequently diagnosed cancer in men |
| sexual arousal | excitation of the body as it responds to psychological and/or physical cues and stimulations |
| central arousal system | internal factors located largely in the emotional and pleasure centers of the brain |
| peripheral arousal system | external factors stem from the spinal cord and its voluntary and involuntary nervous control mechanisms |
| excitement pase | erection of the penis and clitoris vaginal lubrication |
| plateau phase | stable level of arousal may lead to orgasm |
| orgasm phase(climax) | rush of pleasurable sensations lasts from a few seconds to less than a minute |
| resolution phase | state of relaxation after climax body returns to its unexcited state |
| what are individual differences in sexual response? | males tend to reach orgasm more rapidly than females women report different physical and psychological reactions during different orgasms |
| aging and female sexual response | -thinning of vaginal lining -reduction in vaginal lubrication -increase in time of stimulation required to reach orgasm -increase in uterine cramping associated with orgasm -fewer muscular contractions during orgasm |
| aging and male sexual response | -increase in amount of time for an errection -less of an urge for orgasm -refractory period lengthens -pre-cum secretion from Cowper's glands reduced -resolution phase occurs more rapidly |
Created by:
liz_2185
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