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illustration Pia



Part of speech: noun

Origin: Latin, 14th century


The delicate innermost membrane enveloping the brain and spinal cord.

Examples of Pia in a sentence

"The medical residents looked for studies that specifically focused on the pia."

"The pia acts as a protective layer for the nervous system."

About Pia

This word stems from medieval Latin. In full, the literal translation is “tender mother,” translating Arabic “al-'umm ar-raḳīḳa.”

Did you Know?

The full name of this thin, fibrous membrane is “pia mater.” Even though the pia is a barrier that closely covers the brain, it allows blood vessels to pass through and nourish the brain. It also helps in production of cerebrospinal fluid.

illustration Pia

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