Ch 1 Forming plurals of Nouns w/ special endings

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xiongashely
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264193
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Ch 1 Forming plurals of Nouns w/ special endings
Updated:
2014-02-26 23:53:13
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  1. What eponyms?
    Are names for diseases, organs, procedures, or body functions that are derived from the name of a person.
  2. If the singular ending is is what is the plural ending?

    Ex: diagnosis, prognosis, psychosis
    es

    Plural: 
    diagnoses, prognoses, psychoses

    • Note: Some ending in is form plurals by dropping is and adding ides:
    • epididymis and epididymides
  3. If the singular ending is um what is the plural ending?

    Ex: atrium, ileum, septum
    a

    • Plural: atria, ilea, septa
  4. If the singular ending is us what is the plural ending?

    Ex: alveolus, bacillus, bronchus
    i

    Plural: alveoli, bacilli, bronchi

    Note: Some ending in us form plurals by dropping the us and adding era or ora:

    viscera and corpora

    Others add es as in viruses
  5. If the singular ending is a what is the plural ending?

    Ex: vertebra, patella, petechia
    ae


    Plural: vertebrae, patellae, petechiae
  6. If the singular ending is ix what is the plural ending?

    Ex: appendix, varix, cervix
    ices

    Plural: appendices, varices, cervices
  7. If the singular ending is ex what is the plural ending?

    Ex: cortex
    ices

    Plural: cortices
  8. If the singular ending is ax what is the plural ending?

    Ex: thorax
    aces

    Plural: thoraces
  9. If the singular ending is ma what is the plural ending?

    Ex: carcinoma, sarcoma
    s or mata 

    Plural: carcinomas or carcinomata, sarcomas or sarcomata
  10. If the singular ending is on what is the plural ending?

    Ex: protozoon, spermatozoon
    a

    Plural: protozoa, spermatozoa

    Note: Some forms ending in on form plurals by adding s : chorion and chorions
  11. If the singular ending in nx what is the plural ending?

    Ex: phalanx, larynx
    • nges
    • Plural: phalanges, larynges

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