Blastula Stage in Embryonic Development

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Match the following terms with their description in mammalian development:

Morula = Structure without an internal cavity initially Blastocyst = Resulting structure after cavitation Inner cell mass = Layer that actively supports the trophoblast Trophoblast = Layer that secretes fluid to create a blastocoel

Match the following processes with their description in mammalian development:

Cavitation = Process of creating a blastocoel Differentiation = First event in mammalian development Implantation = Process of adhering to the uterus Cleavage = Process of cell division

Match the following structures with their function in mammalian development:

Zona pellucida = Prevents blastocyst from adhering to the oviduct Blastocoel = Fluid-filled cavity in the blastocyst Trophoblast = Layer that secretes proteins to divide inner cell mass Inner cell mass = Layer that supports the development of the embryo

Match the following terms with their description in mammalian development:

Ectopic pregnancy = Dangerous condition where embryo adheres to the oviduct Fertilization = Process of sperm fusion with an oocyte Cleavage = Process of cell division without significant growth Implantation = Process of adhering to the uterus

Match the following cells with their function in mammalian development:

Trophoblast cells = Secrete fluid to create a blastocoel Inner cell mass cells = Actively support the trophoblast Oocytes = Ffuse with sperm to form a zygote Blastomeres = Represent the first differentiation event in mammalian development

Match the following structures with their location in mammalian development:

Blastocoel = Fluid-filled cavity in the blastocyst Zona pellucida = Outer layer surrounding the embryo Inner cell mass = Layer positioned on one side of the trophoblast cells Oviduct = Tube where the embryo moves before implantation

Match the following proteins with their function in mammalian development:

FGF4 = Causes trophoblast cells to divide Hormones = Supports the development of the embryo Enzymes = Breaks down nutrients for energy Proteins = Structural components of cells

Match the following terms with their description in mammalian development:

One-cell embryo = Usually somewhat retracted from the zona pellucida Unfertilized oocyte = Fills the entire space inside the zona pellucida Blastocyst = Structure that expands within the zona pellucida Morula = Stage with 64 cells

Match the following terms with their description in mammalian development:

Tubal pregnancy = Condition where the embryo adheres to the oviduct Uterus = Organ where the embryo implants Oviduct = Tube where the embryo moves before implantation Fetus = Developing embryo after implantation

Match the following processes with their description in mammalian development:

Adhesion = Process of the embryo adhering to the uterus Cleavage = Process of cell division without significant growth Fusion = Process of sperm fusion with an oocyte Differentiation = Process of separating into distinct cell layers

Learn about the blastula stage of embryonic development, where all cells are the same size and united into a seamless epithelial sheet. Understand the role of tight junctions and the formation of the blastocoel. Test your knowledge of this critical stage in embryonic development.

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