Embyonic padlet by Nevaeh Winsor

Fertilization

winsornm — 2025-04-09 22:33:06 UTC

This is the process where a single sperm cell finally meets an egg cell. Fertilization takes place in the Fallopian tube/oviduct. The egg is released from the ovary and travels its way to the uterus to implant.

Zygote

winsornm — 2025-04-09 22:42:07 UTC

A zygote in other terms is considered to be a "fertilized egg". A zygote is created during fertilization, when the sperm reaches the egg. it is the single cell formed when a sperm cell successfully ferlilizes an egg cell.

Totipotent

winsornm — 2025-04-09 22:51:48 UTC

A totipotent cell is a cell that has the ability to develop into any different type of cell in an different type of organism. Totipotent cells are found in the earliest stages of embryonic development.

HCG

winsornm — 2025-04-09 23:00:17 UTC

This is a hormone which is produced by the placenta during pregnancy. It is considered the "pregnancy hormone", and its purpose is to stimulate the production of estrogen and progesterone, which is mandatory for maintaining a pregnancy.

Cleavage

winsornm — 2025-04-09 23:10:13 UTC

Cleavage is the process of the division of cells in the early development of the embryo. The zygote divides by mitosis into two identical cells. the cells divide, making four cells. this process continues over and over forming a ball of cells.

Embryo Development

winsornm — 2025-04-09 23:21:46 UTC

This is the process where a fertilized egg (zygote) changes its state and transforms into an embryo, and later becomes a fetus. It is the fetal stage of development.

Morula

winsornm — 2025-04-09 23:29:56 UTC

Is a cluster of cells formed through the process of cell division. This occurs very early on in the embryonic development, right after fertilization has occurred but slightly before blastocyst begins. The morula also consists of 16 cells, which are known as blastomeres.

Blastocyst

winsornm — 2025-04-09 23:40:26 UTC

The blastocyst is a hollow ball of cells that forms in the early stages of embryonic development in mammals. Blastocyst begins after the morula occurs, and it implants in the uterine wall. At this point it continues to develop and eventually becomes a fetus.

Inner Cell Mass

winsornm — 2025-04-09 23:45:48 UTC

Inner Cell Mass is also known as "embryoblast". This is where a group of cells within the early blastocyst eventually develop into the fetus and all of its tissue. This also occurs in the early stages of embryonic development.

Pluripotent

winsornm — 2025-04-09 23:49:52 UTC

A pluripotent cell is a cell that has the ability to develop into any type of cell in a mammals body, except the extra-embryonic tissues like the placenta. These cells also have an unlimited capacity to divide.

Implantation

winsornm — 2025-04-09 23:59:03 UTC

Implantation is the process where a female fertilized egg, which now is called a blastocyst. Attaches, and burrows itself into the lining of the uterus or Endometrium. This is where pregnancy

begins.

Extra-Embryonic Membranes

winsornm — 2025-04-10 00:04:47 UTC

This process consists of structures in which protect and support the developing embryo. These structures include the amnion, yolk sac, allantois, and the chorion. These structures also play a role in development and waste/nutrient waste exchange.

Yolk Sac

winsornm — 2025-04-10 00:14:43 UTC

The yolk sac is a structure that develops in a woman's uterus during the early pregnancy. It provides an embryo with nourishment (food), as well as helps to circulate gasses between a woman and the embryo. The yolk sac also produces cells that create important structures for the embryo. Such as the umbilical cord, blood cells, and reproductive organs.

Amnion

winsornm — 2025-04-10 00:21:15 UTC

The amnion is the innermost membrane that surrounds the fetus. The amnion is a fluid filled sac that consists of amniotic fluid. This causes the amnion to expand and become the amnion sac to protect the developing fetus inside.

Allantois

winsornm — 2025-04-10 18:20:25 UTC

The Allantois is a fluid-filled sac, part of the extra-embryonic membrane family. It is not a layer like the chorion, it is actually inside the amnion. The Allantois plays a big role in gas exchange, waste disposal, and forming parts of the umbilical cord. This structure is only temporary, and it is involved with the development of the placenta.

Chorion

winsornm — 2025-04-10 18:27:07 UTC

The chorion is the outermost layer membrane that surrounds the developing fetus. This structure plays a huge role in gas exchange, and the exchange of blood between the mother and the fetus.

Gastrulation

winsornm — 2025-04-10 18:32:51 UTC

Gastrulation occurs during the third week of human development. It is an early embryonic development stage where a single-layered blastula is moved around into a multilayered structure called a gastrula.

Gastrula

winsornm — 2025-04-10 18:34:11 UTC

A gastrula is an early-embryonic development where the blastula converts into a multilayered structure that involves the three germ layers. (Endo, Meso, Ecto)

Germ Layers

winsornm — 2025-04-10 18:43:57 UTC

The germ layers consists of three different layers. The endoderm layer, which is the inner-most layer. The mesoderm, which takes place in the middle, and the ectoderm which is the outer-most layer. Germ layers are primary cell layers that form early in the process of fertilization.

Endoderm

winsornm — 2025-04-10 18:49:08 UTC

The endoderm is the inner-most layer in the germ layers, which take place in a developing embryo. This layer is responsible

for forming the digestive, and respiratory tract. This layer is also in charge of the development of certain organs. Like the liver and the pancreas.

Mesoderm

winsornm — 2025-04-10 22:37:30 UTC

Mesoderm is the middle of the three germ layers in an embryo. This layer gives rise to a very wide range of tissues and structures. which include muscles, bones, cartilage, blood, and the cardiovascular system.

Ectoderm

winsornm — 2025-04-10 22:41:26 UTC

The ectoderm is the outer-most layer of the three germ layers in an embryo. This germ layers develops the skin, hair, and nervous system.

Differentiation

winsornm — 2025-04-10 22:47:05 UTC

The process in which differentiation occurs is when unspecialized cells become specialized with specific functions. In other terms, its how cells functions develop into different priorities. like muscle cells, nerve cells, or even blood cells.

Morphogenesis

winsornm — 2025-04-10 22:52:37 UTC

This is the process in which cells, tissue, and organisms develop their structure, as well as shape during development. In other words it's the shaping process which functions for their proper formation.

Placenta

winsornm — 2025-04-10 22:56:42 UTC

The placenta is a temporary organ that develops during a woman's pregnancy. Its function is in charge of the exchange of waste, nutrients, and oxygen products between the mother and the fetus. The placenta also connects from the fetus to the uterine wall.

Unipotent

winsornm — 2025-04-10 23:00:41 UTC

Unipotent cells have the ability to form into only one exact type of cell or tissue.

Umbilical Cord

winsornm — 2025-04-10 23:03:57 UTC

The umbilical cord is a flexible tube that provides oxygen and nutrients to the fetus during a woman's pregnancy. The umbilical cord connects to the placenta, and processed to attach to the baby's belly button.