incisor
adapted for cutting, as are certain teeth
Source: Noland, George B. 1983. General Biology, 11th Edition. St. Louis, MO. C. V. Mosby ...
incisor
A front, chisel-shaped tooth in mammals, normally used for cutting or gnawing. In some species incisors continue to grow throughout life.
The lower incisors are smaller than the upper: the central ones are smaller than the lateral, and are the smallest of all the incisors.
Thrinaxodon has a reduced number of incisors, a precursor to tooth differentiation. Cynognathus (a doglike carnivore) shows a further increase in size of the dentary bone. The other three bones are located inside the back portion of the jaw.
Some humans with very mild forms of holoprosencephaly just might have a single central incisor, which is indicative of a very mild ventral midline patterning defect.
Of the eight teeth on each half of e 1000 ach jaw, the two in front are incisors, then come one canine, cuspid, or dog tooth, two bicuspids, or false molars, and three molars, or grinding teeth.
dental formula A notation that indicates the number of incisors, canines, premolars, and molars in the upper and lower jaw of a mammal.
denticle A small toothlike process.
denticles (denticulate) Small, toothlike projections.
teeth specialized for cutting (incisors), tearing (canines) and grinding (molars) their food
about 4,600 species living today
Mammals first appeared over 180 million years ago early in the Mesozoic. They were the ...
These can be effects on the organism in which the gene resides, the environment, or other organisms. For instance, a beaver dam might be considered a phenotype of beaver genes, the same way beaver's powerful incisor teeth are phenotype expressions ...
 See also: Human, Class, Bone, Posterior, Origin
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