bloque embriología general tema ovulación, fecundación implantación introducción en la pubertad comienzan los ciclos menstruales de la mujer. esto ciclos. fecundación desarrollo fetal gametogénesis es el proceso por el cual las es proporcionar un medio nutritivo para la nidación y el mantenimiento del huevo. tema embriología humana. fecundación. implantación. organogénesis. La masa celular externa forma el trofoblasto (placenta) Blastocisto: Embrión de .

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In case of women, the reproduction involves greater physical and mental placenntacion than it happens for men, since it involves having a period every month for most of theirs life, pregnancy, childbirth and breastfeeding.

The placenta is formed from the capillaries of the embryo and of the endometrium.

These three diseases, which are or may be mortal, have increased significantly in the recent years becouse of the overconfidence. Then the child is put upside down and given a pat on the back to empty the water from the lungs and begin to breath first cryand the the umbilical cord is cut fecunadcion tied.

La fecundación y la gestación: by irene 🙂 on Prezi

In the following drawing the gametogenesis in the rat is showed. There are two types of meiosis: It can distinguish three phases: If inside the cells are two X chromosomes the individual is female and if there is an X and an Y the placentackon is a man. Then read the text on fertilization, embryonic development and the childbirth and perform the second Multiple Choice Test, the second Relate Pictures with Names and the Crossword.

It is implanted on the uterine’s mucous membrane nesting. This organ allows providing oxygen O2 and nutrients from the maternal blood to nicacion embryo and transfer carbon dioxide CO2 and excretory products mainly urea produced placentaion the embryo to maternal blood.


Graphs and questions about the embryonic growth. Otherwise the children would have twice as many plxcentacion as their parents. It should be remembered that the basic rule of prevention is to never have sex without a condom with a person we do not have full confidence if they are currently having or have just had sex with an other person.

If it find the egg, the spermatozoa surround it but only one gets through the membrane and enters the nucleus. During this phase, about 20 minutes after birth, the contractions restart and the placenta is ejectedwhich was previously detached, it is a process that is accompanied with small bleeding. This happens about six days after fertilization. A mass with a hollow interior blastula is formed from it. Moreover, many of our life actions are related to the reproductive process, such as finding the person we want to have children with, living with this person, taking care of children, etc.

Fecundación y nidación by Rosangel Crespo on Prezi

It is the process of the expulsion of the fetus. Interestingly we invest a lot of energy to give rise to cells that are nor for plaentacion use but to generate other individuals, they are called the sexual or reproductive cells.

The formation of sex cells. During this phase, uterine contractions start they occur every 30 minutes at the beggining and at the end – every 3 minutes. During this phase, the contractions occur every 2 minutes and nicacion more intense, causing the exit of the child after half an hour. The ovulation happens when the concentration of the LH in the blood reaches its maximum superiority over the concentration of the FSH.

It usually endures about nine months.

deflexionadas de bregma, frente y cara. situacion transversa

In conclusion, the woman is the main character of this story. The sex cells or gametes are special cells which have half the chromosomes that have the cells of the rest plxcentacion the body, which are called the somatic cells. Activity in English is under construction. Well, it all is expained in this chapter. The endometrium is the layer that cover the inside of the uterus.


In a doubt is always better to abstain or use a condom. The chromosome is a DNA molecule coiled up around itself and a gene is a DNA segment that contains information about given characteristics of the organism. Standards of prevention of sexually transmitted diseases. This, containing 23 fecumdacion, joins the ovum nucleus, which also contain 23 chromosomes and a cell is formed with a core containing 46 chromosomes, called the zygotewhich is the first cell of the new individual.

Animation on pregnancy and the childbirth Spanish activity. After nine weeks, the embryo has a length of 3 to 4 cm, weighs about 2 to 4g, has almost all organs and a human form, so it is called a fetus.

This process is accompanied by a loss of blood and discomfort that may be serious, it lasts 3 to 5 days and repeats every days, for this it is called the menstrual cycle. We all should know how sex cells are formed and the process of the fertilization, pregnancy nidaciob childbirth.

Gestación de los animales

If it does not find any egg it dies after about 3 or 4 days. The egg is released about two weeks after the beggining of the menstruation and lives around 24 placentaion, during which it can be fertilized. There are many changes taking place in women’s body, both physical and chemical hormonesand psychological.

Read the explanations on the formation of gametes and the menstrual cycle and perform the first Multiple Fecundxcion Test and the first Relate Pictures with Names.