agnathia


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Related to agnathia: Archaeopteris, prognathia

agnathia

 [ag-na´the-ah]
congenital absence of the lower jaw.

ag·na·thi·a

(āg-nā'thē-ă), In the diphthong gn, the g is silent only at the beginning of a word.
Congenital absence of the mandible, usually accompanied by approximation of the ears.
See also: otocephaly, synotia.
[G. a- priv. + gnathos, jaw]

agnathia

The complete or virtual absence of the mandible. All cases of agnathia that occur at birth are due to mutations, and are typically associated with holoprosencephaly (HPE), which may relate to alterations in signalling from forebrain and foregut endoderm organising centres, and subsequent first pharyngeal arch development.

ag·na·thi·a

(āg-nāth'ē-ă)
Congenital absence of the mandible, usually accompanied by approximation of the ears.
See also: otocephaly, synotia
[G. a- priv. + gnathos, jaw]

agnathia

Absence of the jaw.

ag·na·thi·a

(āg-nāth'ē-ă)
Congenital absence of the mandible, usually accompanied by approximation of the ears.
[G. a- priv. + gnathos, jaw]
References in periodicals archive ?
This lack of growth is based on the dose, going from a range of hypoplasia, micrognathia through agnathia (Figure 3).
A long surviving case of holoprosencephaly agnathia series.
In dose groups 0.02 and 0.08ug/g BW, micrognathia was observed while agnathia was observed in 0.02ug/g BW.