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Zona pellucida (ZP)

Zona pellucida (ZP)

The zona pellucida (ZP) is a protein-rich element responsible for maintaining the egg and the embryo with a spherical shape. During fertilisation, spermatozoa have to gradually pass through the ZP until a single spermatozoon reaches the egg cell membrane.

Read the full article on: ( 30).
By BSc, MSc (embryologist), BSc, MSc (embryologist) and BA, MA (fertility counselor).
Last Update: 12/04/2018
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