branchial crown
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tentacular crown — see branchial crown … Dictionary of invertebrate zoology
Tooth development — Radiograph of lower right (from left to right) third, second, and first molars in different stages of development. Tooth development or odontogenesis is the complex process by which teeth form from embryonic cells, grow, and erupt into the mouth … Wikipedia
Cyst — A closed sac or capsule, usually filled with fluid or semisolid material. * * * 1. A bladder. 2. An abnormal sac containing gas, fluid, or a semisolid material, with a membranous lining. SEE ALSO: pseudocyst. [G. kystis, bladder] adventitious c.… … Medical dictionary
Maxillary central incisor — Maxillary central incisors of permanent and primary teeth marked in red. The maxillary central incisor is a human tooth in the front upper jaw, or maxilla, and is usually the most visible of all teeth in the mouth. It is located mesial (closer to … Wikipedia
Dental anatomy — Adult and Baby teeth diagram. Note the non standard Dental notation (numbering) Dental anatomy is a field of anatomy dedicated to the study of human tooth structures. The development, appearance, and classification of teeth fall within its… … Wikipedia
groove — A narrow, elongate depression or furrow on any surface. SEE ALSO: sulcus. alveolobuccal g. the upper and lower half of the buccal vestibule on each side. SYN: alveolobuccal sulcus, gingivobuccal g., gingivobuccal sulcus. alveololabial g. 1. the… … Medical dictionary
Tooth (human) — For other uses of tooth or teeth , see Tooth (disambiguation). Teeth An adult human s teeth … Wikipedia
Tooth — Infobox Anatomy Name = Teeth Caption = An adult human s teeth. Caption2 = CGI posterior view of teeth taken from inside of mouthTeeth (singular, Tooth) are small whitish structures found in the jaws (or mouths) of many vertebrates that are used… … Wikipedia
Temnospondyli — Temnospondyls Temporal range: Early Carboniferous Early Cretaceous, 330–120 Ma Possible descendant taxon Lissamphibia survives to present … Wikipedia
annelid — /an l id/, n. 1. any segmented worm of the phylum Annelida, including the earthworms, leeches, and various marine forms. adj. 2. belonging or pertaining to the Annelida. Also, annelidan /euh nel i dn/. [1825 35; see ANNELIDA] * * * Any member of… … Universalium
