https://padlet.com/cadieuxjb/6u0phny8h5vy Embyros en-us 2018-10-31 20:38:50 UTC 2026-01-05 17:49:11 UTC hello@padlet.com https://padlet-assets.s3.amazonaws.com/icons/Soccerball.png cadieuxjb https://padlet.com/cadieuxjb/6u0phny8h5vy/wish/299177933 Now that implantation has occurred, hCG hormone is released. Human chorionic gonadotropin (hCG) is a hormone produced by the placenta after implantation. This hormone is what will show a woman is pregnant as it will show up in her blood and urine after the implanted embryo releases the hormone. Also maintains the corpus luteum, so that it may release progesterone to thicken the cervix and maintain the endometrium for the embryo.]]> 2018-10-31 20:41:17 UTC https://padlet.com/cadieuxjb/6u0phny8h5vy/wish/299177933 cadieuxjb https://padlet.com/cadieuxjb/6u0phny8h5vy/wish/299178021 Forms the exoskeleton, which is the hair, nails, mouth, skin and nasal cavity.]]> 2018-10-31 20:41:38 UTC https://padlet.com/cadieuxjb/6u0phny8h5vy/wish/299178021 cadieuxjb https://padlet.com/cadieuxjb/6u0phny8h5vy/wish/299178240 A zygote is when a male and female gamete, sperm fertilizing the egg, result in the zygote. This is the first stage of cell division, before cell divides. This is early cleavage. Day 1]]> 2018-10-31 20:42:40 UTC https://padlet.com/cadieuxjb/6u0phny8h5vy/wish/299178240 cadieuxjb https://padlet.com/cadieuxjb/6u0phny8h5vy/wish/299178272 Develops inner organs which include the muscles, heart, bones and circulatory systems.]]> 2018-10-31 20:42:49 UTC https://padlet.com/cadieuxjb/6u0phny8h5vy/wish/299178272 cadieuxjb https://padlet.com/cadieuxjb/6u0phny8h5vy/wish/299178662 There are three layers, the Ectoderm, Mesoderm, Endoderm.]]> 2018-10-31 20:44:23 UTC https://padlet.com/cadieuxjb/6u0phny8h5vy/wish/299178662 cadieuxjb https://padlet.com/cadieuxjb/6u0phny8h5vy/wish/299178725 The embryo is surrounded by 3 extra embryonic membranes and a yolk sac. The three membranes are the amnion, chorion, allantois.]]> 2018-10-31 20:44:37 UTC https://padlet.com/cadieuxjb/6u0phny8h5vy/wish/299178725 cadieuxjb https://padlet.com/cadieuxjb/6u0phny8h5vy/wish/299178832 After the morula stage, the cell gets a hollow cavity within. Now the cell is called a blastocyst. Day 5-7. Blastocyst differentiates.]]> 2018-10-31 20:45:05 UTC https://padlet.com/cadieuxjb/6u0phny8h5vy/wish/299178832 cadieuxjb https://padlet.com/cadieuxjb/6u0phny8h5vy/wish/299178911 Helps embryo get rid of liquid waste, exchange gases. The main function is to remove waste. This becomes the umbilical cord.]]> 2018-10-31 20:45:23 UTC https://padlet.com/cadieuxjb/6u0phny8h5vy/wish/299178911 cadieuxjb https://padlet.com/cadieuxjb/6u0phny8h5vy/wish/299178952 Inner cell mass, ICM, is a mass of cells above the ollow cavity in the blastocyst.]]> 2018-10-31 20:45:34 UTC https://padlet.com/cadieuxjb/6u0phny8h5vy/wish/299178952 cadieuxjb https://padlet.com/cadieuxjb/6u0phny8h5vy/wish/299179213 Covers the embryo/growing fetus to protect it. Filled with amniotic fluid. The inner most membrane, the chorion is just outside it.]]> 2018-10-31 20:46:49 UTC https://padlet.com/cadieuxjb/6u0phny8h5vy/wish/299179213 cadieuxjb https://padlet.com/cadieuxjb/6u0phny8h5vy/wish/299179251 Forms the inner lining of the organs. Liver, pancreas, bladder and stomach.]]> 2018-10-31 20:47:05 UTC https://padlet.com/cadieuxjb/6u0phny8h5vy/wish/299179251 cadieuxjb https://padlet.com/cadieuxjb/6u0phny8h5vy/wish/299179309 Contributes to making up the placenta in the later weeks of pregnancy, along with the yolk sac and allantois. The chorion is the outer most membrane layer around the embryo, just outside the amnion. ]]> 2018-10-31 20:47:21 UTC https://padlet.com/cadieuxjb/6u0phny8h5vy/wish/299179309 cadieuxjb https://padlet.com/cadieuxjb/6u0phny8h5vy/wish/299179382 The yolk sac attaches to the embryo, this provides  nourishment to the embryo. Does not stay for the whole pregnancy. Usually is undetectable by week 20.]]> 2018-10-31 20:47:32 UTC https://padlet.com/cadieuxjb/6u0phny8h5vy/wish/299179382 cadieuxjb https://padlet.com/cadieuxjb/6u0phny8h5vy/wish/299179443 This is the stage where the hollow cave is present with all three germ layers. These layers will form the developing embryo. End of week one]]> 2018-10-31 20:47:48 UTC https://padlet.com/cadieuxjb/6u0phny8h5vy/wish/299179443 cadieuxjb https://padlet.com/cadieuxjb/6u0phny8h5vy/wish/299179482 Now that morphogenesis has occurred, and the embryo is now a fetus (after 9 weeks), the fetus can now further its development in the womb.]]> 2018-10-31 20:48:00 UTC https://padlet.com/cadieuxjb/6u0phny8h5vy/wish/299179482 cadieuxjb https://padlet.com/cadieuxjb/6u0phny8h5vy/wish/299179664 The placenta has chorionic villi. Only appears during pregnancy. No blood cells move across the membrane. This is where waste and nutrients exchanges. Waste goes to the placenta wall from fetus, and the placenta brings nutrients to the fetus. The placenta reaches the fetus through the umbilical cord. Through the umbilical cord they transfer nutrients, hormones, and wastes between fetus and mother.]]> 2018-10-31 20:48:56 UTC https://padlet.com/cadieuxjb/6u0phny8h5vy/wish/299179664 cadieuxjb https://padlet.com/cadieuxjb/6u0phny8h5vy/wish/299179746 Late cleavage, after the zygote has split resulting in 16 parts. Cell has not grown in size, just replicated DNA. Totipotent, can become any kind of cell. Day 2-4]]> 2018-10-31 20:49:13 UTC https://padlet.com/cadieuxjb/6u0phny8h5vy/wish/299179746 cadieuxjb https://padlet.com/cadieuxjb/6u0phny8h5vy/wish/299179813 Forms during the seventh week of pregnancy. Transports blood with wastes to the placental wall and brings back blood with nutrients to the embryo. Made up of the allantois and yolk sac in the later weeks of pregnancy. Attaches the fetus to the placenta.

]]> 2018-10-31 20:49:33 UTC https://padlet.com/cadieuxjb/6u0phny8h5vy/wish/299179813 cadieuxjb https://padlet.com/cadieuxjb/6u0phny8h5vy/wish/299212655 This is when the sperm penetrates the egg, fertilization has occurred. This occurs in the fallopian tubes.]]> 2018-11-01 00:57:28 UTC https://padlet.com/cadieuxjb/6u0phny8h5vy/wish/299212655 cadieuxjb https://padlet.com/cadieuxjb/6u0phny8h5vy/wish/299212691 The movement of cells after the blastocyst stage move into the gastrulation stage. Gastrulation forms the gastrula from the blastocyst. Formation of distinct germ layers.]]> 2018-11-01 00:57:46 UTC https://padlet.com/cadieuxjb/6u0phny8h5vy/wish/299212691 cadieuxjb https://padlet.com/cadieuxjb/6u0phny8h5vy/wish/299212706 Gastrulation was the first part of morphogenesis due to the fact that it is the start of the different layers within in the cell. This is when the cell will start to develop its shape and form its characteristics. Morphogenesis controls the space of cells during embryo development in an organism. Differentiation occurs allowing cells to develop into a variety of structers.]]> 2018-11-01 00:57:53 UTC https://padlet.com/cadieuxjb/6u0phny8h5vy/wish/299212706 cadieuxjb https://padlet.com/cadieuxjb/6u0phny8h5vy/wish/299212730 As the blastocyst cells become more specialized, the gastrula is becoming more distinct, with the germ layers and extra embryonic membranes.]]> 2018-11-01 00:58:01 UTC https://padlet.com/cadieuxjb/6u0phny8h5vy/wish/299212730 cadieuxjb https://padlet.com/cadieuxjb/6u0phny8h5vy/wish/299212737 This happens approximately 7-10 days after ovulation, the blastocyst lodges onto the endometrium, and the endometrium lining binds onto the proteins on the trophoblast, which is what holds onto them for the rest of the pregnancy. The baby can now get nutrients and grow.]]> 2018-11-01 00:58:06 UTC https://padlet.com/cadieuxjb/6u0phny8h5vy/wish/299212737 cadieuxjb https://padlet.com/cadieuxjb/6u0phny8h5vy/wish/299212757 This is the rapid division of cells, replicating the DNA although the cell does not ever grow in size as it splits. Leads to embryo that can grow in uterus. Starts with one, two, four, eight, then sixteen. Process of splitting.]]> 2018-11-01 00:58:14 UTC https://padlet.com/cadieuxjb/6u0phny8h5vy/wish/299212757 cadieuxjb https://padlet.com/cadieuxjb/6u0phny8h5vy/wish/299235615 Totipotent cells have the potential to specialize as any cell. An embryonic cell is only totipotent as a zygote and the early stages of cleavage.]]> 2018-11-01 03:23:58 UTC https://padlet.com/cadieuxjb/6u0phny8h5vy/wish/299235615 cadieuxjb https://padlet.com/cadieuxjb/6u0phny8h5vy/wish/299235897 Blastocyst is considered pluripotent. Can rise to all of the cell types that make up the body. Example is stem cells. Can make any body structure.]]> 2018-11-01 03:26:44 UTC https://padlet.com/cadieuxjb/6u0phny8h5vy/wish/299235897 cadieuxjb https://padlet.com/cadieuxjb/6u0phny8h5vy/wish/299235920 Blood cells within the umbilical cord are considered multipotent. Can develop into more than one cell type, more limited that pluripotent. Can become a lot of things but are more limited.]]> 2018-11-01 03:26:59 UTC https://padlet.com/cadieuxjb/6u0phny8h5vy/wish/299235920