reproduction. hormones estrogen produced by ovaries stimulates development of female secondary...

ReproductionReproduction

HormonesHormones

EstrogenEstrogen Produced by ovariesProduced by ovaries Stimulates development of female Stimulates development of female

secondary sex characteristicssecondary sex characteristics Affect the menstrual cycleAffect the menstrual cycle More dominate in females, males have More dominate in females, males have

some as well. some as well.

More hormonesMore hormones

TestosteroneTestosterone Produces the male secondary sex Produces the male secondary sex

characteristicscharacteristics

Female Reproductive Female Reproductive SystemSystem

Consists of organs in the female boy that Consists of organs in the female boy that are involved in producing offspringare involved in producing offspring

External StructuresExternal Structures Mons Veneris; fatty tissues that covers the Mons Veneris; fatty tissues that covers the

pubic bone and serves as a cushionpubic bone and serves as a cushion Labia Majora; heavy folds of skin that Labia Majora; heavy folds of skin that

surround the opening of the vaginasurround the opening of the vagina Labia Minora; two smaller folds of skin Labia Minora; two smaller folds of skin

located within the labia majoralocated within the labia majora


External ContinuedExternal Continued ClitorisClitoris

a small highly sensitive structure located above a small highly sensitive structure located above the opening of the urethra and the vagina within the opening of the urethra and the vagina within the labia majora.the labia majora.

HymenHymen a thin membrane that stretches across the a thin membrane that stretches across the

opening of the vaginaopening of the vagina

Female Reproduction Female Reproduction SystemSystem

Internal Internal Ovaries Ovaries

female reproductive glands that produce ova and female reproductive glands that produce ova and estrogenestrogen

Born with between 200,000 and 400,000Born with between 200,000 and 400,000 About 375 of these will mature and be released About 375 of these will mature and be released

during the females lifetimeduring the females lifetime Fallopian TubesFallopian Tubes

About 4 inches or 10 centimeters longAbout 4 inches or 10 centimeters long They connect an ovary to the uterusThey connect an ovary to the uterus


Internal continuedInternal continued Fallopian Tubes (cont.)Fallopian Tubes (cont.)

During menstruation, a mature ovum moves During menstruation, a mature ovum moves through the tube to the uterusthrough the tube to the uterus

When fertilization occurs, it’s usually in the F.T.When fertilization occurs, it’s usually in the F.T. If ovum is not fertilized it either leaves the body If ovum is not fertilized it either leaves the body

or disintegratesor disintegrates UterusUterus

receives and supports fertilized egg during receives and supports fertilized egg during pregnancy and helps during child birthpregnancy and helps during child birth

Female Reproduction Female Reproduction SystemSystem

Internal Structures, continuedInternal Structures, continued CervixCervix

Lowest part of the uterusLowest part of the uterus Connects the uterus to the vaginaConnects the uterus to the vagina

VaginaVagina Muscular tube that connects the uterus to the Muscular tube that connects the uterus to the

outside of the bodyoutside of the body Serves as the female organ for sexual Serves as the female organ for sexual

intercourse, birth canal, and passageway for the intercourse, birth canal, and passageway for the menstrual flowmenstrual flow

Male Reproductive Male Reproductive SystemSystem

External StructuresExternal Structures PenisPenis

Male sex organ used for reproduction and urinationMale sex organ used for reproduction and urination ScrotumScrotum

A sac-like pouch that holds the testes A sac-like pouch that holds the testes Regulate the temperature of the testesRegulate the temperature of the testes

TestesTestes Male reproductive glandsMale reproductive glands Produce sperm and testosteroneProduce sperm and testosterone

SpermSperm Male reproductive cellsMale reproductive cells


Internal StructuresInternal Structures Seminiferous TubulesSeminiferous Tubules

Network of coiled tubules in which sperm are Network of coiled tubules in which sperm are producedproduced

EpididymisEpididymis Comma-shaped structure along the upper rear Comma-shaped structure along the upper rear

surface of the testessurface of the testes Where sperm are stored and matureWhere sperm are stored and mature


Internal Structures cont. Internal Structures cont. Vas deferensVas deferens

Two long, thin tubes Two long, thin tubes Act as a passageway for spermAct as a passageway for sperm Extend from the epididymis in the scrotum up into Extend from the epididymis in the scrotum up into

the abdomenthe abdomen Walls are lined with cilia, help move the spermWalls are lined with cilia, help move the sperm

Seminal VesiclesSeminal Vesicles Two small glands that secrete a fluid rich in sugar Two small glands that secrete a fluid rich in sugar

that nourish the sperms and helps them movethat nourish the sperms and helps them move

Male Reproductive Male Reproductive SystemSystem Ejaculatory DuctEjaculatory Duct

Short straight tubeShort straight tube Passes from the prostate gland an dopens in the Passes from the prostate gland an dopens in the

urethraurethra Serves as a passageway for the sperm and urine to Serves as a passageway for the sperm and urine to

leave the bodyleave the body Prostate GlandProstate Gland

Produces a fluid that helps keep sperm aliveProduces a fluid that helps keep sperm alive Located beneath the bladder and surrounds the urethraLocated beneath the bladder and surrounds the urethra

Cowper’s GlandCowper’s Gland Two small glands that secrete a clear, lubricating fluid Two small glands that secrete a clear, lubricating fluid

in the urethrain the urethra


ErectionErection Process that occurs when the penis swells with Process that occurs when the penis swells with

blood and elongatesblood and elongates May be accompanied with ejaculationMay be accompanied with ejaculation

EjaculationEjaculation Passage of semen from the penis Passage of semen from the penis Result of a series of muscular contractionsResult of a series of muscular contractions Average amount, 1 teaspoonAverage amount, 1 teaspoon 33 mph33 mph

reproduction. hormones estrogen produced by ovaries stimulates development of female secondary...

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