27th 2007
Pre-natal development of a fruit
The period of development from the moment of fertilisation of a female sexual cage (the pregnancy beginning) till a birth of the child is called as pre-natal.
The first stages of development pass during movement on to a pipe. Impregnated starts to share, therefore it is formed , superficially resembling a mulberry berry. At this stage for 4-5th day impregnated gets to a uterus where turns in . In a stage for eggs that a part of cages, larger on the sizes, form from which the embryo further develops is characteristic, and other part of smaller cages located outside of egg, forms feeding cover of a germ — .
For 7-8th day , consisting approximately from 100 cages, takes root it (is implanted) into a uterus wall. has enzymes thanks to which there is "fusion" of cages of a mucous membrane uterus walls, and gradually plunges into depth of a functional layer .
After implantation (inoculation) of a germ in a uterus wall the responsible period of formation of the basic bodies and fruit systems, and also the important body of pregnancy — placentae begins.
Implantation comes to the end within 40 hours. After implantation the uterus mucous membrane is called (disappearing) cover.
egg quickly grows, thus there is a development both the germ, and its covers by which it is surrounded. From an inside layer of the cages surrounding a germ, the cover which is called is formed. From the external cover eggs which is called (a fleecy cover) develops. in the beginning have no vessels. Gradually there is a formation of vessels : germ vessels grow into it . It provides more intensive metabolism between it and an organism of mother. On 2-3rd month of pregnancy reduction on one party the eggs turned into a uterus cavity, and on other party shipped in a mucous membrane of a uterus, expand begins. Thus, shares on smooth and branchy. In the beginning of 4th month of pregnancy the branchy part turns to a fruit part of a placenta. Besides , making the basic part of a placenta, in its formation takes part
1st week fertilisation
4th week and further embryo development
3rd week
2nd week formation of three germinal covers of which various bodies of the kid further are formed
The period of development from the moment of fertilisation of a female sexual cage (the pregnancy beginning) till a birth of the child is called as pre-natal.
The first stages of development pass during movement on to a pipe. Impregnated starts to share, therefore it is formed , superficially resembling a mulberry berry. At this stage for 4-5th day impregnated gets to a uterus where turns in . In a stage for eggs that a part of cages, larger on the sizes, form from which the embryo further develops is characteristic, and other part of smaller cages located outside of egg, forms feeding cover of a germ — .
For 7-8th day , consisting approximately from 100 cages, takes root it (is implanted) into a uterus wall. has enzymes thanks to which there is "fusion" of cages of a mucous membrane uterus walls, and gradually plunges into depth of a functional layer .
After implantation (inoculation) of a germ in a uterus wall the responsible period of formation of the basic bodies and fruit systems, and also the important body of pregnancy — placentae begins.
Implantation comes to the end within 40 hours. After implantation the uterus mucous membrane is called (disappearing) cover.
egg quickly grows, thus there is a development both the germ, and its covers by which it is surrounded. From an inside layer of the cages surrounding a germ, the cover which is called is formed. From the external cover eggs which is called (a fleecy cover) develops. in the beginning have no vessels. Gradually there is a formation of vessels : germ vessels grow into it . It provides more intensive metabolism between it and an organism of mother. On 2-3rd month of pregnancy reduction on one party the eggs turned into a uterus cavity, and on other party shipped in a mucous membrane of a uterus, expand begins. Thus, shares on smooth and branchy. In the beginning of 4th month of pregnancy the branchy part turns to a fruit part of a placenta. Besides , making the basic part of a placenta, in its formation takes part
1st week fertilisation
4th week and further embryo development
3rd week
2nd week formation of three germinal covers of which various bodies of the kid further are formed
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