https://padlet.com/kaminielsen/no0tv3gf1tu582i A timeline of how life begins en-us 2023-02-07 03:49:14 UTC 2023-02-07 06:28:39 UTC hello@padlet.com kaminielsen https://padlet.com/kaminielsen/no0tv3gf1tu582i/wish/2471139934 The urge to procreate is a fundamental part of all life. In humans, when 2 individuals each create one cell of 23 chromosomes, and those cells are brought together through fertilization, the possibility of a new life begins. ]]> 2023-02-07 04:00:33 UTC https://padlet.com/kaminielsen/no0tv3gf1tu582i/wish/2471139934 kaminielsen https://padlet.com/kaminielsen/no0tv3gf1tu582i/wish/2471143903 For men, these cells are found in the sperm. Males produce 1000 new sperm every second and over 2 trillion over a lifetime.]]> 2023-02-07 04:05:28 UTC https://padlet.com/kaminielsen/no0tv3gf1tu582i/wish/2471143903 kaminielsen https://padlet.com/kaminielsen/no0tv3gf1tu582i/wish/2471149921 A female has all the eggs she will ever have for reproduction while she is still in the womb. These are released each month by the ovaries as part of a woman's menstrual cycle.]]> 2023-02-07 04:14:05 UTC https://padlet.com/kaminielsen/no0tv3gf1tu582i/wish/2471149921 kaminielsen https://padlet.com/kaminielsen/no0tv3gf1tu582i/wish/2471156576 When male sperm are released into a female, they are led to the egg inside the uterus. Once they come together, they have one mission...to create a viable embryo.]]> 2023-02-07 04:23:15 UTC https://padlet.com/kaminielsen/no0tv3gf1tu582i/wish/2471156576 kaminielsen https://padlet.com/kaminielsen/no0tv3gf1tu582i/wish/2471159488 50 percent of all fertilized eggs fail to become embryos.]]> 2023-02-07 04:27:13 UTC https://padlet.com/kaminielsen/no0tv3gf1tu582i/wish/2471159488 kaminielsen https://padlet.com/kaminielsen/no0tv3gf1tu582i/wish/2471164386 While the fertilized egg is moving through the fallopian tubes, the cells continue to divide, gradually creating the building blocks needed to construct an embryo.]]> 2023-02-07 04:33:24 UTC https://padlet.com/kaminielsen/no0tv3gf1tu582i/wish/2471164386 kaminielsen https://padlet.com/kaminielsen/no0tv3gf1tu582i/wish/2471171315 The cells break out of the zona and land on the blood-rich lining of the mother's uterus. This process is called basalis.]]> 2023-02-07 04:42:12 UTC https://padlet.com/kaminielsen/no0tv3gf1tu582i/wish/2471171315 kaminielsen https://padlet.com/kaminielsen/no0tv3gf1tu582i/wish/2471174397 The basalis is about the size of a poppy seed. It is here, deep inside the uterine lining, that the cells start to organize themselves into an embryo. This process is called "gastrulation".]]> 2023-02-07 04:46:13 UTC https://padlet.com/kaminielsen/no0tv3gf1tu582i/wish/2471174397 kaminielsen https://padlet.com/kaminielsen/no0tv3gf1tu582i/wish/2471180699 Scientists believe at the beginning of gastrulation, some cells begin moving toward the center, then dive down creating a new lower layer. Eventually, there will be 3 layers of cells, all having different functions. The bottom layer will become the lungs, liver, and digestive system, the middle layer will become the heart, muscles, bones, and blood, and the top layer will become the spinal cord, brain, nervous system, skin, and hair.]]> 2023-02-07 04:54:16 UTC https://padlet.com/kaminielsen/no0tv3gf1tu582i/wish/2471180699 kaminielsen https://padlet.com/kaminielsen/no0tv3gf1tu582i/wish/2471183616 Between 3 and 4 1/2 weeks, the neural tube is in place and the brain has started to form. Blood vessels are forming and the heart starts to beat. The beginning of arms and legs also start to form.]]> 2023-02-07 04:57:32 UTC https://padlet.com/kaminielsen/no0tv3gf1tu582i/wish/2471183616 kaminielsen https://padlet.com/kaminielsen/no0tv3gf1tu582i/wish/2471195359 The embryo is only about 1/5 of an inch long. The backbone has begun to form into a tail that will disappear in a few weeks. A large brain has started to develop and on the side of the head, an eye appears.]]> 2023-02-07 05:04:57 UTC https://padlet.com/kaminielsen/no0tv3gf1tu582i/wish/2471195359 kaminielsen https://padlet.com/kaminielsen/no0tv3gf1tu582i/wish/2471205759 At 7 weeks, all male and female embryos look the same. Genes powered by DNA will help gonads develop into ovaries or a penis. By 18 weeks, you can tell the baby's sex through an ultrasound.]]> 2023-02-07 05:15:24 UTC https://padlet.com/kaminielsen/no0tv3gf1tu582i/wish/2471205759 kaminielsen https://padlet.com/kaminielsen/no0tv3gf1tu582i/wish/2471211336 The embryo becomes a fetus. It is less than one inch long and under 1/3 ounce. All organs are in place but not all working. Villi from the placenta feed the fetus nutrients and oxygen. ]]> 2023-02-07 05:22:40 UTC https://padlet.com/kaminielsen/no0tv3gf1tu582i/wish/2471211336 kaminielsen https://padlet.com/kaminielsen/no0tv3gf1tu582i/wish/2471213144 ...the fetus will continue to grow to almost 400 times it's current size. ]]> 2023-02-07 05:24:47 UTC https://padlet.com/kaminielsen/no0tv3gf1tu582i/wish/2471213144 kaminielsen https://padlet.com/kaminielsen/no0tv3gf1tu582i/wish/2471217236 The second trimester includes weeks 13 through 27. The baby grows larger and many women begin to show a larger belly. Women start to feel the baby move and they have an increased appetite as they continue to nourish the baby.]]> 2023-02-07 05:28:32 UTC https://padlet.com/kaminielsen/no0tv3gf1tu582i/wish/2471217236 kaminielsen https://padlet.com/kaminielsen/no0tv3gf1tu582i/wish/2471218933 hard bone starts to be seen.]]> 2023-02-07 05:29:53 UTC https://padlet.com/kaminielsen/no0tv3gf1tu582i/wish/2471218933 kaminielsen https://padlet.com/kaminielsen/no0tv3gf1tu582i/wish/2471219508 eye begins to respond to light....]]> 2023-02-07 05:30:48 UTC https://padlet.com/kaminielsen/no0tv3gf1tu582i/wish/2471219508 kaminielsen https://padlet.com/kaminielsen/no0tv3gf1tu582i/wish/2471220238 begin to hear sounds.]]> 2023-02-07 05:31:53 UTC https://padlet.com/kaminielsen/no0tv3gf1tu582i/wish/2471220238 kaminielsen https://padlet.com/kaminielsen/no0tv3gf1tu582i/wish/2471223626 The third trimester of your pregnancy starts at 28 weeks and lasts until you give birth. Most babies are born around 40 weeks.]]> 2023-02-07 05:35:57 UTC https://padlet.com/kaminielsen/no0tv3gf1tu582i/wish/2471223626 kaminielsen https://padlet.com/kaminielsen/no0tv3gf1tu582i/wish/2471225586 the fetus' job is to grow. Fat reserves line the brain, increasing nerve impulses and brain power. When the baby's need for fat is too great for the mother to provide, the baby must be born to survive and labor begins.]]> 2023-02-07 05:38:36 UTC https://padlet.com/kaminielsen/no0tv3gf1tu582i/wish/2471225586 kaminielsen https://padlet.com/kaminielsen/no0tv3gf1tu582i/wish/2471228170 There are several stages of labor as a woman's cervix dilates and effaces. Contractions become stronger over time until the cervix opens to about 4 inches to accommodate a baby's head. ]]> 2023-02-07 05:42:34 UTC https://padlet.com/kaminielsen/no0tv3gf1tu582i/wish/2471228170 kaminielsen https://padlet.com/kaminielsen/no0tv3gf1tu582i/wish/2471234769 After a baby is born, its need for nurturing continues. Each child is born into a set of ecological systems (developed by Urie Bronfenbrenner, a Russian-born America psychologist) that helps the child develop and grow. ]]> 2023-02-07 05:52:24 UTC https://padlet.com/kaminielsen/no0tv3gf1tu582i/wish/2471234769 kaminielsen https://padlet.com/kaminielsen/no0tv3gf1tu582i/wish/2471235757 Interactions with the 5 systems are the center of theory for a developing child. They include....]]> 2023-02-07 05:54:06 UTC https://padlet.com/kaminielsen/no0tv3gf1tu582i/wish/2471235757 kaminielsen https://padlet.com/kaminielsen/no0tv3gf1tu582i/wish/2471238618 The Microsystem is compiled of parents, siblings, and peers that the child has close direct contact. These relationships encompass a child's immediate surroundings. ]]> 2023-02-07 05:58:36 UTC https://padlet.com/kaminielsen/no0tv3gf1tu582i/wish/2471238618 kaminielsen https://padlet.com/kaminielsen/no0tv3gf1tu582i/wish/2471241941 is how different relationships in a child's microsystem work together. For example, how a child's school and parents interact and work together has an indirect impact on the child.]]> 2023-02-07 06:03:35 UTC https://padlet.com/kaminielsen/no0tv3gf1tu582i/wish/2471241941 kaminielsen https://padlet.com/kaminielsen/no0tv3gf1tu582i/wish/2471244081 The exosystem includes a parent's workplace, the parent's friends, the neighborhood they live in, or mass media. These systems do not have direct involvement with a child but they still affect their development.]]> 2023-02-07 06:06:41 UTC https://padlet.com/kaminielsen/no0tv3gf1tu582i/wish/2471244081 kaminielsen https://padlet.com/kaminielsen/no0tv3gf1tu582i/wish/2471246375 And finally, the macrosystem. This system is the laws, economics, religious institutions and educational systems that fit into the larger cultural context of a child's life. These are broad influences that surround a child and affect their development.]]> 2023-02-07 06:10:10 UTC https://padlet.com/kaminielsen/no0tv3gf1tu582i/wish/2471246375 kaminielsen https://padlet.com/kaminielsen/no0tv3gf1tu582i/wish/2471251909 Birth is an everyday occurrence, but one of the most complex processes on earth. As a human life begins and progresses through life, it continues to be a subject of wonder and awe, and one worth our continued efforts to study and gain insight from.]]> 2023-02-07 06:17:04 UTC https://padlet.com/kaminielsen/no0tv3gf1tu582i/wish/2471251909 kaminielsen https://padlet.com/kaminielsen/no0tv3gf1tu582i/wish/2471255861 Public Broadcasting Service. (2001, November 21). Life's greatest miracle. PBS. Retrieved February 6, 2023, from https://www.pbs.org/wgbh/nova/video/lifes-greatest-miracle/

3 Weeks pregnant: Pregnancy week by Week. BabyCenter. Retrieved February 6, 2023, from https://www.babycenter.com/pregnancy/week-by-week/3-weeks-pregnant

Cafasso, J. (2017, November 14). The second trimester of pregnancy. Healthline. Retrieved February 6, 2023, from https://www.healthline.com/health/pregnancy/second-trimester

Editor. (2021, December 9). Third trimester of pregnancy: Fetal development. American Pregnancy Association. Retrieved February 6, 2023, from https://americanpregnancy.org/healthy-pregnancy/pregnancy-health-wellness/third-trimester/

Mayo Foundation for Medical Education and Research. (2022, January 13). Stages of labor and birth: Baby, it's time!Mayo Clinic. Retrieved February 6, 2023, from https://www.mayoclinic.org/healthy-lifestyle/labor-and-delivery/in-depth/stages-of-labor/art-20046545 



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