cribriform

DEFINITION of cribriform

In medical anatomy, the term most commonly refers to the cribriform plate of the ethmoid bone. This horizontal plate forms the roof of the nasal cavity and the floor of the anterior cranial fossa. It is characterized by numerous tiny openings called olfactory foramina, which allow the passage of olfactory nerve fibers (Cranial Nerve I) from the nasal mucosa to the olfactory bulbs in the brain. Beyond gross anatomy, the term is also used in pathology to describe a “cribriform pattern”—a histological appearance where sheets of cells are punctuated by clear, gland-like spaces, often seen in certain types of breast or prostate carcinomas.

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ETYMOLOGY of cribriform

latin; - Root: Cribrum (meaning “a sieve”) + -form (meaning “shaped like”).

• History: The term has been used since the 18th century to describe the unique, perforated structure of the ethmoid bone.

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DERIVATIONS of cribriform

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Query functionality

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Med roots Appendix A Prefixes Appendix B Combining Forms Appendix C Suffixes Appendix D Suffix forms