3ESO. Reproductive system.

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THE REPRODUCTION FUNCTION The male and female reproductive systems.

Transcript of 3ESO. Reproductive system.

THE REPRODUCTION FUNCTION

The male and female reproductive systems.

Index

Reproduction function

Sexuality.

Reproductive systems anatomy: female and

male organs.

Ovarian and menstrual cycle.

Fertilization process.

Gestation and birth.

Contraceptive methods.

The reproductive system or genital system is

a system of sex organs within an organism which

work together for the purpose of sexual

reproduction.

Many non-living substances such as fluids,

hormones, and pheromones are also important

accessories to the reproductive system.

Human reproduction is sexual.

Male and female produce gametes: sperm and

egg cells.

Gametes are produced in gonads.

Human species shows 2 sexes: male and female.

Gametes join through fertilization and originate

the zygote.

Fertilization is internal.

We are viviparous.

What do these characteristics imply?

CHARACTERISTICS OF HUMAN

REPRODUCTION.

Reproduction is the result of physical contact between twoindividuals who are attracted to one another.

Sexuality in humans is not only linked to reproduction, butalso linked to feelings and emotions necessary forpeople’s psychological development.

THERE IS NOT JUST ONE WAY OF PERCEIVING SEXUALITY. IT IS A PERSONAL DECISION.

ANY SOCIETY THAT CONSIDERS ITSELF TO BE FREE AND DEMOCRATIC, SHOULD RESPECT DIFFERENT SEXUAL ORIENTATIONS.

SEXUALITY.

Menarche: 1st menstruation.

Spermarche: 1st ejaculation.

Corpus

cavernosum

MALE

REPRODUCTIVE

SYSTEM

Fallopian tube Fallopian tube

OvaryOvary

Uterus

Cervix

Endometrium

Miometrium

FEMALE

REPRODUCTIVE

SYSTEM

Fallopian tube

VAGINA: Aloja el

pene durante el

coito. Canal de

salida de la

sangre mentrual,

y de los bebén en

partos

“naturales”.

VEJIGA

RECTOLABIOS MENORES

LABIOS MAYORES

TROMPA DE FALOPIO: Canales

que transportan los óvulos desde

los ovarios al útero.

FIMBRIAS: tentáculos que

oscilan recogiendo y guiando

al óvulo hacia el interior de la

trompa.

Folículo conteniendo

un óvulo inmaduro.

OVARIO: Al nacer contienen

millones de folículos ováricos

primarios. Durante la pubertad,

maduran liberando un óvulo al

mes (ovulación)

ÚTERO: Durante el

embarazo, se expande a

medida que crece el feto.

CÉRVIX o CUELLO DEL

ÚTERO: Es el extremo

inferior y estrecho del útero.

CLÍTORIS: Posee un tejido

esponjoso que se

endurece e hincha durante

la estimulación sexual.

En el libro de texto

hay varios errores.

Follicular

phase

Ovulation

Secretory

phase

OOGENESIS: formation, maduration, and

release of an ovum.UTERINE CYCLE: modifications of the

female sexual organs.

Period

Fertilization takes place inside the female reproductive system after

copulation.

Every ejaculation 300-400 million sperm cells are released. Just one will

fertilize the egg cell.

Upon encountering the secondary oocyte, the acrosome of the sperm cell

produces enzymes which allow it to burrow through the outer jelly coat of

the egg. The sperm plasma then fuses with the egg’s plasma membrane,

the sperm head disconects from it flagellum and the egg travels down the

Fallopian tube to reach the uterus.

CONTRACEPTIVE

METHODS

Natural

Artificial

Abstinence

Basal temperature

Ogino

Billings method

Sympto-thermal

Coitus interruptus

Male condom

Female condom(Protect against STI)

Diaphragm

IUD (intreuterine device)

Spermicides

Hormone contraceptives

*Morning-after pill

*5 day morning after pill(*Emergency contraception)

Tubal ligation

Vasectomy

BARRIER M.

CHEMICAL M.

SURGICAL M.