Dentition Flashcards
(14 cards)
What type of feeder are dogs and meaning
Carnivores, only eat meat
What types of teeth do dogs have 4
Incisors
Canines
Carnassial teeth
Molars and premolars
Structure and function of incisors in carnivores
Small, sharp, chisel shaped
Strip flesh from bones
Structure and function of canines
Large, pointed
Kill and grip prey, tear flesh
Where are the carnissial teeth, structure and function
The last upper premokar and first lower molar, they fit together when mouth is closed
Slice flesh, crush bones
Structure and function of molars and premolars
Pointed cusps
Cutting meat
Describe the structure of a dogs jaw
Powerfull jaw muscles, lower jaw only moves vertically
Why can the lower jaw only move vertically and limitation
To prevent the dislocation of the joint due to struggling movement of prey
It cannot chew and must swallow whole
What type of feeders are sheep
herbivores, mainly east grass
Function of the horny pad and incisors in herbivores
The incisors bite against the horny pad to cut vegetation off the plant
Space between the honey pad and upper premolars and function
Diastema, allows manipulation of food by the tongue
Structure and function of molars in herbivores
Large, interlocking
Grind tough plant material
Describe the movement of the jaw of a herbivore and function
Lower jaw moves horizontally
Grinds grass in circular motion to break open cellulose cell walls
What enables the premolars and molars of sheep to continue growing their whole life
Root cavities remain open for good blood supply to the teeth
