The thin "tissue paper" protective layer over the brain is the

The answer is pia mater a lot referred to as basically the pia, is the subtle inmost layer of the meninges, the membranes adjacent to the brain and spinal cord. Pia mater is Medieval Latin meaning "tender mother". The two meningeal membranes are the arachnoid mater and the dura mater.

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thrombocytopenia, which is a deficiency in blood platelets, can cause bleeding and bruising in the dermis similar to senile purpura. other possible causes include: exposure to ultraviolet rays and aging skin are common causes of senile purpura. senile purpura may also be a sign of collagen loss in the skin and bones.