One of the mysteries of the English language finally explained.
The thin membrane of glial cells lining the ventricles of the brain and the central canal of the spinal cord.
- ‘These include the respiratory epithelium of the airways (respiratory cilia), the embryonic node (primary cilia), and the ependyma of the brain ventricles (ependymal cilia).’
- ‘The adjacent cerebral parenchyma and overlying ependyma revealed no discrete inflammation or vasculitis.’
- ‘The most cogent theory that supports the occasional finding of subcutaneous islands of ependyma in the postcoccygeal region in infants is that these lesions originate from extramedullary ependymal rests.’
- ‘After the ependyma covering its ventricular surface is stripped away, the elongated caudate nucleus is exposed.’
- ‘Supporting cells of the nervous system include the capsule or satellite cells of peripheral ganglia, ependyma, neuroglia, and Schwann cells.’
Late 19th century: from Greek ependuma, from ependuein ‘put on over’.
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