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Mammalogy Lab Ch. 3
Teeth
31
Biology
Undergraduate 4
09/12/2009

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Term
Crown
Definition
Portion of the tooth exposed above the gumline
Term
Root
Definition
the portion fitting into the sockets of the jaw
Term
Hypsodont
Definition
teeth with a particularly high crown
Term
Brachyodont
Definition
teeth with a particularly low crown
Term
Cusps
Definition
points and bumps on the crown of the tooth
Term
Lingual side
Definition
side of tooth closest to the tongue
Term
Labial of Buccal Side
Definition
side of tooth closest to the cheek.
Term
Occlusal
Definition
Surface of a tooth that meets with a tooth on the opposing jaw
Term
Dentine
Definition
Bonelike material which is the major portion of the tooth.
Term
Enamel
Definition
Thin, white hard layer over the dentine layer on crowns
Term
Cementum
Definition
Bonelike layer which covers the roots
Term
Pulp
Definition
The central, living portion of a growing tooth which is connected to blood vessels and nerves
Term
Rooted Teeth
Definition
Teeth which are not growing any longer. The blood vessels close off and growth ceases
Term
Rootless Teeth
Definition
continually growing teeth
Term
Diphyodont
Definition
having two sets of teeth
Term
Deciduous or Milk Teeth
Definition
Teeth present in immature mammals
Term
Monophyodont
Definition
Having only one set of teeth
Term
Homodont
Definition
all teeth in an individual resemble each other
Term
Heterodont
Definition
Two or more different kinds of teeth
Term
Incisors
Definition
teeth routed in the premaxillary bone
Term
Canines
Definition
The most anterior teeth rooted in the maxillae
Term
Diastema
Definition
Wide gap between teeth
Term
Dilambdodont Upper Molar
Definition
has a W-shaped occlusal surface
Term
Euthemorphic Upper Molar
Definition
has a square or quadrate crown
Term
Zalambdodont Upper Molar
Definition
characterized by a V-shaped crests
Term
Bunodont Tooth
Definition
Has four major rounded cusps
Term
Lophodont Teeth
Definition
Many herbivores have these, the cusps fuse to form elongated ridges
Term
Lophs
Definition
Elongated abrasive surfaces for the grinding of plant materials
Term
Selenodont Tooth
Definition
(Similar to Loph) each ridge is formed by the elongation of a single cusp
Term
Selenolophodont Teeth
Definition
Combine aspects of both lophodont and selenodont teeth
Term
Carnassial Teeth
Definition
Only found in the order Carnivora. The two teeth that do the shearing
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