What is the term for the bloodless plane that contains loose areolar tissue and permits mobility of the scalp?

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Scalp layers include skin,subcutaneous tissue,galea,and periosteum.Scalp skin is thick.The subcutaneous tissue,which is exceptionally dense,tough,and vascular,is firmly attached to the galea.Most of the blood vessels lie superficial to the galea.The subgaleal space contains loose areolar tissue that permits mobility of the scalp.It is in this bloodless plane that the standard craniotomy scalp flap is created.The pericranium,or outer periosteum of the skull,separates the galea from the cranium.

What Is the Term for the Bloodless Plane That Contains