Asked by Casey Labrada on Apr 28, 2024

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A cleft lip results when

A) the two halves of the secondary palate do not fuse.
B) the frontonasal and maxillary processes do not fuse.
C) the lateral edges of the nasal placodes do not fuse with the maxillary processes.
D) the maxillary processes do not fuse with the mandibular processes.
E) None of the choices are correct.

Frontonasal

Pertaining to both the forehead and nose.

Cleft Lip

A congenital deformity marked by a split or gap in the upper lip, which can occur on one or both sides and may extend up into the nose.

Maxillary Processes

Primordial structures in the embryo which contribute to the formation of the upper jaw (maxilla).

  • Describe the irregularities in development, highlighting their sources and effects.
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TB
Trisha BlazejewskiApr 29, 2024
Final Answer :
B
Explanation :
A cleft lip occurs when the frontonasal and maxillary processes fail to fuse properly during embryonic development.