THE STYLOID process develops, along with the stapes, the stylohyoid ligament, and the anterior horn of the hyoid bone, from the cartilaginous core of the second branchial arch, or cartilage of Reichert, the embryonic hyoid-arch cartilage.
This cartilage is composed of four parts: 1. The tympanohyal part is cuplike and grows from the periotic capsule. 2. The stylohyal part forms the styloid process. 3. The ceratohyal portion takes a regressive development into the stylohyoid ligament. 4. The hypohyal part forms the lesser cornu of the hyoid bone.
Ankylosis usually occurs in adult life between the tympanohyal and the stylohyal parts. The union of these two parts constitutes the styloid process of adult life.
Dwight, the anatomist, stated that Reichert's cartilage in early embryonic life extends downward and forward from the base of the skull toward its fellow of the opposite side, to which it is connected by the crosspiece of
OTTO V. M. SCHMIDT. ELONGATED STYLOID PROCESS WHICH INTERFERED WITH FUNCTION OF A SINGER'S VOICEOperation and Recovery. AMA Arch Otolaryngol. 1951;54(4):417–421. doi:10.1001/archotol.1951.03750100079009