Psychology Week 3. Whowell Babieesss

 This week was a very fun chapter for me. I myself am a huge fan of babies, a lot of my friends have had babies and I  almost live vicariously through them once I find out they are pregnant. I like to pay attention to every detail from their morning sickness all the way to being there for their actual birth and helping them take care of the babies watching and babysit him as well. I think this chapter was so much fun because it confirmed a lot of the stuff I already know however it also help me learn new things.  This week the goal was to be able to gain knowledge on the fertilization process, the prenatal period, the flow of the birthing process, and the characteristics of newborns. I just want to take the time to go through each and what specifically excited me or was new information to me.
  The first process was fertilization this starts with a woman's menstrual cycle, which is the process of ovulation which is the ripening of eggs. Also preparing of the uterine lining for potential fertilized ovam.  In a woman's life time she will produce 2 million eggs about 400 our release,  this number is because a woman releases about one egg a month for about 35 years. Now a man will produce about 100 to 250 million sperm in each ejaculation,  which sounds a lot but by the time the sperm travels  up the fallopian tube where it will hopefully try to attach to an egg only 200 sperm will survive the trip. The egg and sperm only take 24 to 30 hours, after they have combined, to start rapidly dividing. It takes 4 to 8 days to travel down the fallopian tube which is only five or 6 inches to attach to the uterine wall which is known as implantation.  The thing I found the most Interesting to learn was that only 200s from the survive the trip I thought that was an incredibly long number from the 250 million that could've potentially made it all the way.
  The next goal was to learn about the prenatal periods, the first period the germinal which is about the first two weeks.  This includes the blastocyst which is when the zygote, which is the egg and the sperm combined, turns into a fluid filled ball of cells.  The second week that blastocyst attaches to the wall of the uterus. The inner cells become the embryo , and the outer walls become the placenta, the umbilical cord, and the amniotic sac.  The second part of the prenatal period is the embryonic period. This period is from the third to the eighth weeks, and this is when cells differentiate. The embryo becomes three distinct layers of the ectoderm, mesoderm, and endoderm.  Easel there is responsible for things like skin, hair, teeth,  nerves, muscles, skeleton, lungs, liver, or pancreas.  Within the third because the nervous system is developed and by the seventh week you can send neurons, and the brain has developed over 1000 trillion connections.  Also organogenesis has started which means organs have begun to form. By eight weeks 95% of the body parts are formed and movement has can be detected.  The last period is the fatal period, which is the third month through birth. This is rapid growth were sex organs are formed the baby,  and heart rate and muscles and eyes are formed at the seventh month if the baby is born it can survive which is called viability. I personally think the coolest part of this section, is the entire thing! It is amazing how fast and how many things can develop within a mothers womb and what a miracle childbirth us.
  The next thing we covered in the chapters was the birthing process the birthing process though very time-consuming consists of only three major steps. The first step  is the cervix dilating and the baby moving into position. Once the cervix is dilated to centimeters the second stage takes place which is expulsion which  is the process of pushing the baby all the way out. Once the baby is delivered the last step of the birthing process is the afterbirth which is the delivery of the placenta. This section is very straightforward for me it is something I'm very familiar with and have witnessed a true miracle.
  The next goal was characteristics of an newborn. Which were vision where a baby is nearsighted. They can see things up close versus further away and has about a 10 inch distance of vision. A first they are attracted to shapes best, then colors, and facial expressions.  Also smell which is best seen with the babies attraction to breastmilk or formula or their happiness when they smell their mom scent.  Which leads to taste babies make different facial expressions with sweet flavors versus our flavors. Hearing  is it characteristics of a newborn they hear immediately. They are more attracted to humans speech, they can identify happy tones and angry tones and respond to them.  And finally touch which you can see with preemies in their mothers using skin to skin can regulate body temperatures,  help them sleep soundly and gain more weight.   The second aspect to the characterics of newborns is their reflexes, Moro reflexes which are how babies get startled and uses their arm so and legs to show this. Grasping reflex, which is when a baby grabs things with their hands naturally. Plantar reflexes which is when a baby curls their toes when the balls of their feet hit the floor. Babinski's reflexes when they spread their toes when their feet are gently rubbed. stepping reflex, when they try to walk, naturally putting one foot in front on another. And finally tonic-neck reflex, when their are on their back and move their head from side to side.  This section was fun for me because I can identify these in my nephews behaviors who is only six months. So to  know he us developing on top is great encouragement.
Being able to dive into all these things was a lot of fun, I hope the plowing chapter are just as fun to read and filled with information!

Comments

  1. You will be able to see a lot of what you read this week develop in your six month old nephew. Every child is different but academia (like this course) tends to present development in a linear fashion when often times development is fluid. Those who ascribe to the linear model tend to become fixated on developmental milestones reaching a certain age. Ultimately, development occurs at a different rate for everybody .

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  2. Your excitement about these chapters is so contagious. It is wonderful to go through all the details of how babies develop and recognizing the amazing process of fertilization prior to birth. The way you thread your discoveries of fertilization, birth and growing as a newborn is helpful in seeing all details of the very beginning processes that a unique person goes through to become the person they will be. It sure will be fun to see this process of development in your nephew.

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