<prompt> Do the embryological first pharyngeal arches remain?Sphenomandibular ligamentStylohyoid ligamentStylomandibular ligamentStyloid ligament  <response>: The pa of the cailage extending from the region of the middle ear to the mandible disappears, but its sheath forms the anterior ligament of the malleus and the sphenomandibular ligament Ref: Human Embryology, Inderbir Singh, 10th edition, page no: 131 