Definition of Preoral. Meaning of Preoral. Synonyms of Preoral

- however, has been the nature of the preoral region. The obvious contradiction between a theory that no-preoral structures are segmental, and evidence...
- flatworms. Catenulids are characterized by an ovoid brain located in the preoral region. The brain lacks a distinct division into anterior and posterior...
- globular macronucleus surrounded by many refractive granules and a big preoral dome. Vďačný, Peter; Foissner, Wilhelm (2016). "A huge diversity of metopids...
- in these species, the chelicerae and the bases of the pedipalps form a preoral cavity that holds the food they are processing. The stomach in the cephalothorax...
- scorpions and almost all spiders are predators that "pre-process" food in preoral cavities formed by the chelicerae and the bases of the pedipalps. However...
- posteriorly). Mite digestive systems have salivary glands that open into the preoral space rather than the foregut. Most species carry two to six pairs of salivary...
- molecular studies. A 2020 study found numerous characters of the eye and preoral region suggesting that the closest relatives to crown myriapods are the...
- difficult to ****ess in the wider picture. Trilobites had a single pair of preoral antennae and otherwise undifferentiated biramous limbs (two, three or four...
- through a gastrula or even a blastula stage. New larvae can develop from the preoral hood (a mound like structure above the mouth), the side body wall, the...
- caterpillars) have mandibles. The labrum is a broad lobe forming the roof of the preoral cavity, suspended from the clypeus in front of the mouth and forming the...