an introduction
The Almighty said: “O people, if you are in doubt of the Baath, we have created you from dust and then from the sperm and then from the leech and then from the chewing We are created and not created to show you and click in the womb what we desire for a specified term and then we will bring you out a child.
The importance of knowing the stages of fetal development
It is necessary to know the stages of fetal development so that it can link the fetal growth with the accompanying symptoms. It increases the cohesion between the mother and her fetus, and increases her attachment to and care for him. This gives her a unique opportunity to reflect. Close to the verse of Rabbaniyah, and think about the creation of God Almighty, who says: (And in yourselves do not see).
Stages of fetal development
The journey of embryo development begins and its members form and grow from the first fertilized cell after the first week of vaccination. Therefore, we will include in this tour the stages from the second week to the fortieth week, indicating the date of each member of the body,
first month
- the third week: The pregnancy is not visible to the naked eye, where the fertilized egg is left in place; to migrate through the fallopian tube to the uterine cavity, and to descend into the lining membrane to prepare for nesting.
- fourth week: In this week, the fetus is characterized by its primitive growth velocity, and its vision with the naked eye becomes possible. It begins to form a membrane around the fetal nucleus, called the fallen membrane, because it falls with the placenta at the time of the fetus’s exit.
second month
- The fifth week: The size of the fetus increases gradually this week. The fetus is approximately two millimeters long, and the spine begins to form. This is accompanied by the onset of a primitive nervous system.
- the sixth week: This week is vital in the development of the fetus, where it appears in many members and forms such as: head, abdominal cavity, thoracic cavity, primitive brain, and spinal cord, after the development of the spine this week, and also the beginning of the emergence of peripheral organs, Secret and heart, and the appearance of stomach and intestines at the end of the week, and the length of the fetus this week to about six millimeters.
- Seventh week: This week, the growth of the organs that emerged in the previous week continues to manifest clearly within a functional configuration, showing the features of the arms and legs, the articular mass of the fingers and the growth of the blood system. Blood vessels begin to spread towards the head and the rest of the body, , Where the pulse of the heart is sufficient for that, as evidenced by the emergence of the formation of the lungs on both sides of the chest, and develops the nervous system to complete its growth, except peripheral nerves and nerves of the skin, as the eyes appear closed without the occurrence of the fracture them, and turn the head, which has been shaped on Will be completed this week and the growth will continue until the fetus reaches about 1.3 cm at the end of the week.
- The eighth week The fetal growth is increased this week to a length of about 2.2 cm, with the total size of the head concentrated, showing the beginning of the formation of the nasal cavity and nasal openings, and the middle ear without external, and shows the jaw in the form of interlocking in the beginnings, and continues to grow the limbs of the fetus; to show the features of the knees and shoulders , And algae, to be ready for the first simple local movement.
the third mounth
- Week Nine: The embryo’s length increases to about three centimeters, with a weight of up to two grams. The fetus’s movement begins, but not significantly, to the mother, due to the growth of limbs. The growth of other organs that have been created in the last few weeks continues. And nose.
- Week 10: The weight of the fetus increases this week to five grams, as well as about five centimeters. The growth of the umbilical cord is also completed to move the blood circulation in the arteries and veins. The placenta’s nucleus begins to form, and the rest of the body continues to grow. The fingers can be distinguished but connected to each other. They are joined by a membrane-like mass in the feet of birds such as ducks. The outer ear also begins to form to show a small nucleus of the earlobe.
- Week 11: This week is an important event, where it gives an indication of the sex of the fetus. This week, the male and female genitals are prominent. The middle and inner ears are formed at the end of the week, and the outer ear continues to grow and develop. Fetus in this week, and also complete heart growth; to function fully integrated, and the length of the fetus is about five centimeters and a half and ten grams.
- Week 12: The growth of the rest of the body continues. The weight of the fetus grows to about 18 grams and the length of the fetus increases to about seven centimeters at the end of the week. This week, the fetus is characterized by an increase in muscle mass in the limbs and increased movement. Forward.
Fourth month
- Week 13: The volume of swelling in the uterus appears clearly this week, and is in the form of a prominent cystic swelling of the pelvis; it arises because it contains a fluid swimming by the fetus, which is called amyoniae fluid, and the growth of parts such as neck, ear, lungs, liver, Kidneys, and intestines. These organs continue to grow and increase in size, bringing the weight of the fetus to thirty grams and about seven centimeters long.
- Week Fourteenth and Fifteenth:
- Where members continue to grow and develop their careers, where the fetus is fully formed, but not maturely able to perform full vital functions.
- Week Sixteen This week, the sex of the fetus is clearly visible, and its movement becomes so strong that the mother can feel it at times, as a result of the completion of all limbs, the ability of all the joints to move, and the growth of the rest of the organs increases, reaching the length of the fetus about sixteen centimeters And thirty-five grams, where the fetus is soft hair, which covers the whole body until the face, which is called fluff, and continue to grow members over the next three weeks without the occurrence of changes in organic function.
- Week Twenty: The amount of amniotic fluid increases in a way that allows the fetus to move and circulate. The fetus’s length and weight are doubled to a length of about 25 centimeters. It weighs about three hundred and fifty grams, and the growth of organs and fetal organs continues for the next three weeks.
The fifth and sixth months
Week 24: The fetal organs mature in an integrative manner. The symptoms of pregnancy appear clearly on the abdomen. Because of the size of the fetus, it is about thirty-three centimeters long and weighs about seven hundred and fifty grams. The growth process continues, with no morphological changes occurring during the next four weeks.
The seventh and eighth months
Week Twenty-Eight: This embryo is characterized by a white fat to protect it. The growth process continues to make the head size less for the body. Thirty-seven centimeters, weighing almost nine hundred grams, and the growth process continues in the next four weeks.
The ninth month
- Week 36: The embryo’s growth is completed this week including the lungs, where the fetus is born normal, the baby’s head has taken its ideal position towards the pelvis, the testicles are also out of the abdominal cavity, and are grafted in the scrotum. About six and a half centimeters, and weighing one kilo and a half, and beyond this week, the process of fetus exit within the normal time of birth, and the timing desired by God Almighty, the term named in the verse above, where the pregnancy period to forty weeks, within the normal time of pregnancy .
- Week 40: The weight of the fetus increases this week to three and a half and a half-meter length. This is due to the storage of subcutaneous fat in the past weeks. The head of the fetus grows between two centimeters to four centimeters long and its nails are prominent, In the body with some traces on the shoulders and front of the face.