FECUNDACION NIDACION PLACENTACION PDF
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 conclusion, the woman is the main character of this story. Graphs and questions about the embryonic growth.
The endometrium is the layer that cover the inside of the uterus. The placenta is formed from the capillaries of the embryo and of the endometrium. 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.
We all should know how sex cells are formed and the process of the fertilization, pregnancy and childbirth. It usually endures about palcentacion months. This happens about six days after fertilization. The period from the moment of fertilization until the birth is called the pregnancy. This phase lasts around 8 fecundaion.
There are many fecundaciln taking place in women’s body, both physical and chemical hormonesand psychological. 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 and tied. It should be remembered that the basic rule of prevention is to never have sex without a fecundacin with a person we do not have full confidence niadcion they are currently having or have just had sex with an other person.
Read the explanations on the formation of gametes and the menstrual cycle and perform the first Multiple Choice Test and the first Relate Pictures with Names. If it find the egg, the spermatozoa surround it but only one gets through the membrane and enters the nucleus. During this phase, uterine contractions start they occur every 30 minutes at the beggining nidxcion at the end – every 3 minutes.
During this phase, the contractions occur every 2 minutes and are more intense, causing the exit of the child after half an hour. If it does not find any egg it dies after about 3 or 4 days.
Activity in English is under construction. This organ allows providing oxygen O2 and nutrients from the maternal blood to the embryo and transfer carbon dioxide CO2 and excretory products placentacio urea produced by the embryo to maternal blood.
La fecundación y la gestación: by irene 🙂 on Prezi
Then the zygote begins to multiply embryonic development and gives rise to the embryo. Well, it all is expained in this chapter. Otherwise the children would have twice as many chromosomes as their parents.
It is the process of the expulsion of the fetus. The first structure that is formed is a solid cell mass morula moves down through the fallopian tube. In the reproduction it is clear that men and women are not equal, but complementary. The sperm is injected into the vagina and goes up to the uterus and then to the fallopian tubes.
A few days later it dries and falls off leaving a scar called navel. 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. The fetus is urged forward producing the rupture of the amniotic sac water breakwhich is the sac filled with water where the embryo has been living, and the cervix expands from 4mm to 11cm.
If inside the cells are two X chromosomes the individual is female and if there is an X and an Y the individual is a man. It is implanted on the uterine’s mucous membrane nesting. Relate Pictures with Names Spanish activity. There are two types of meiosis: In case of women, the reproduction involves greater physical and mental effort than it happens for men, since it involves having a period every month for most of theirs life, pregnancy, childbirth and breastfeeding.
Standards of prevention of sexually transmitted diseases. A mass with a hollow interior blastula is formed from it. Multiple Choice Test Spanish activity.
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In the spermatogenesis each stem cell originates 4 spermatozoa, while in oogenesis the stem cell originates only one egg, in each division one of the two daughter cells is degraded. 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.
This, containing 23 chromosomes, 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. In a doubt is always better to abstain or use a condom. In humans the process is a bit more complicated, since the sperm is not attached to an egg but to an oocyte of the second type. The detachment of the endometrium is called a menstruation or a period.