5 Questions
What is the significance of the primitive streak during embryonic development?
It marks the beginning of gastrulation and the establishment of the three primary germ layers.
Which process occurs as cells migrate through the primitive streak?
Establishment of the three primary germ layers
What happens to the primitive streak as gastrulation progresses in vertebrates?
It ultimately regresses as gastrulation progresses and the body plan of the embryo becomes established.
What role does the primitive streak play in the developing embryo's body axes?
It helps establish the anterior-posterior and dorsal-ventral axes.
What function does the primitive streak serve as a signaling center?
It secretes molecules that guide cell movement and differentiation.
Test your knowledge of the formation and significance of the primitive streak during embryonic development, particularly in vertebrates like humans. Learn about the key events that occur at the primitive streak during gastrulation.
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