Mesoderm
mesodermmesoderm
The middle layer is formed during the gastrulation. This layer develops into muscles, bones and blood vessels.
mesodermmesoderm
slacker!
Gastrulation is defined as a phase early in the embryonic development of most animals, during which the single-layered blastula is reorganized into a trilaminar structure known as the gastrula. These three germ layers are known as the ectoderm, mesoderm, and endoderm. These develop into the respiratory and digestive organs.
gastrulation
During gastrulation, two openings form in most animals. If the first opening becomes the mouth, the animal is a
exoderm
yes :)
Cell movement (differential expansion)
Three distinct layers form during gastrulation: ectoderm, mesoderm, and endoderm. Each contributes to different organs.Some examples are:Ectoderm = skin, brainMesoderm = kidneys, muscleEndoderm = digestive tract, respiratory tract
Gastrulation typically occurs during the early stages of animal embryonic development, after fertilization and cleavage have taken place. It involves the reorganization of the blastula into a trilaminar structure known as the gastrula, which sets the stage for the formation of the three primary germ layers (ectoderm, mesoderm, and endoderm).