Once a woman has reached the pregnancy stages, last trimester, she becomes increasingly eager for the birth. The fetus has accomplished most of its development. All the facial features are obvious. The fingers and toes are well-formed. In fact, it is even possible for the fetus to suck its thumb at this stage.
Much of what happens during this last trimester strengthens what already exists. For example, the lungs have now been completely formed and the fetus could begin breathing air if it had to. The additional few weeks of the pregnancy will allow those tiny lungs to develop and strengthen even more, limiting the possibility of early breathing problems.
The brain of the fetus is also developing. The basic components of the brain now exist, but it is smooth and doesnt have the wrinkles that are generally associated with brain development. The last several weeks of the pregnancy stages, last trimester allow the brain time to grow, curving in upon itself, thus developing the familiar wrinkles.
The bones of the fetus are all developed and present, but they are still pliable, which will make the birth process easier. After the delivery, some of the bones will harden and fuse. The fact that the bones are present means that the bone marrow can produce red blood cells. Again, the fetus could survive if delivered early, but extra weeks of development will allow the bone marrow to refine its capability and produce more red blood cells.
The fetus is almost ready to survive on its own. In the pregnancy stages, last trimester, during week 30, the fetus could be delivered, though it would be considered premature. In most cases, some form of medical help would be needed to allow the newborn to grow large enough that the physician will allow the mother to take the infant home. By week 38 of the pregnancy stages, last trimester, the fetus could be delivered and not need medical help to survive, but most physicians would rather wait for week 40 before the baby is delivered. These last two weeks allow the fetus to gain additional weight.
During the pregnancy stages, last trimester, the fetus doesnt have much room to move. Much of the movement is by the hands and feet, but generally, the fetus is making a shift to prepare itself to exit the birth canal. It is gaining weight more quickly than it is gaining length. Mothers will notice that the fetus will respond to sudden, loud noises. It will also respond to soothing sounds, such as the mothers voice.
As the fetus positions itself for birth, it will sink into the pelvic area. This will cause pressure on the bladder and the expectant mother will find herself making frequent trips to the bathroom. She may also experience false labor pains. Ideally, the expectant mother will have asked her physician plenty of questions and she will be prepared for the birth of her baby.
Images Of Pregnancy Stages
The ultrasound technology has evolved from the sonar used by the navies of the world in the Second World War. When the war was over, researchers started testing the sonar to check its effectiveness in diagnosing medical problems. Initially it was employed in the identifying cancers and such other growths that required close medical attention. It was only in the 1950s the medical fraternity acknowledged the usefulness of the sonar in capturing ultrasound images of pregnancy stages.
A series of extremely high frequency of sound waves make Ultrasound. Since these sound waves belong to a frequency that is unable to be heard by the human ear, they cannot be sensed by the patient or her fetus. An instrument referred to as a transducer, which resembles a stethoscope, is positioned on the abdomen of the woman. As high frequency sounds traverse her skin, and rebound off anything they contact within the abdomen, an image that looks like a blurry black and white picture is generated.
These images are today the recognizable ultrasound photos of the pregnancy stages. During the 1960s, the application of ultrasound became progressively more widespread. By that time, scientists had ascertained that the Doppler Effect could turn out pictures that are more precise provided the sound waves of high frequency were in constant movement.
Most people are familiar with the Doppler Effect as the sound of a horn drawing near them and then going away. As there is a variance in the approaching and receding sound, this technique was adopted to give rise to more precise pictures. In addition, this technique permits ultrasound images of the pregnancy stages to identify the fetus.
Purely by accident, a discovery was made that the finest ultrasound images of the pregnancy stages were generated when the technique was applied on women whose bladders were full. The employment of ultrasound is today a regular procedure in the field of obstetrics with women generally thrilled to see the earliest pictures of their babies.
Ultrasound pictures of the pregnancy stages are far more popular during middle and last trimesters of pregnancy. The fetus has grown quite large by then to be discovered without difficulty. In the course of the next few weeks, based on the fetus's location, it is quite likely for a woman find out not just the child's gender, but also the number of children she is carrying.
Then again, the information isn't foolproof, since the photos can be confusing in the initial weeks of second trimester. While the fetus develops, its organs, head, legs, arms, fingers, and toes become more identifiable, and making out the fetus or fetuses gender becomes quite simple. Practicing physicians use ultrasound pictures during pregnancy stages to perceive likely problems that the fetus may face.
Both Azzam & Abhishek Agarwal are contributors for EditorialToday. The above articles have been edited for relevancy and timeliness. All write-ups, reviews, tips and guides published by EditorialToday.com and its partners or affiliates are for informational purposes only. They should not be used for any legal or any other type of advice. We do not endorse any author, contributor, writer or article posted by our team.
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