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All Anatomical Compartments > Compartment Card
Skeletal Muscle >

Hyoid Arch Muscles


The hyoid arch muscles (HAMs) are part of the branchiomeric craniofacial muscles which control feeding, breathing and facial expression. These muscles originate in the pharyngeal mesoderm and are characterized by a genetic program similar to that of the adjacent second heart field, progenitor cells which gives rise to the majority of the heart. The cranial paraxial mesoderm and head lateral (splanchnic) mesoderm cells heavily contribute to formation of these muscles. Hyoid arch muscles anlagen eventually split, via an unidentified mechanism, to form lower  facial muscles:mandibular depressors, stapedial muscle and facial expression muscles.

Branchiomeric muscles, pharyngeal muscles,craniofacial muscles, head muscles
Hyoid Arch Muscles
Multiple Ancestors Single Ancestor No Descendants Develops from Part of Parent