Nutrition Teeth.

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Presentation transcript:

Nutrition Teeth

Teeth Functions Functions of Teeth: Increase surface area for chemical / or microbial degradation Cutting of foodstuffs to be presented to mouth Protective Inflict wounds Kill Prey Food gathering (for carnivores)

Types of Teeth Incisors (I) Canines (C) Premolars (P) Molars (M) Most forward Used for cutting Canines (C) Also fangs, eye teeth, tusks Used for tearing and separation of food mass Premolars (P) Just caudal to canines Used for grinding and chewing Molars (M) Larger than premolars

Dental Formulas Represent one side of mouth Numerator = top teeth Denominator = bottom teeth Animals can be aged by teeth eruption and wear Deciduous vs. Permanent Teeth

Cow/ Sheep/ Goat: I 0/4 C 0/0 P 3/3 M 3/3 = 32

Sheep

Cattle

Goat Mediterranean islands.

Pig I 3/3 C 1/1 P 4/4 M 3/3 = 44

Pig

Horse

Horse

Humans: I 2/2 C 1/1 P 2/2 M 2/2 = 32 Look at the person next to you!

Canine: I3, C1, P1, P2, P3, P4, M1, M2

Canine

Canine

Feline: 2(I 3/3 C1/1 P 3/2 M 1/1) = 30

Feline

Digestive System: Congenital And Inherited Anomalies Of The Digestive System http://www.merckvetmanual.com/mvm/htm/bc/cat_img_20000.htm Will’s Skull Page: LIST of species featured in this website: http://www.skullsite.co.uk/lists.htm

GP The dental formula is 2(I 1/1, P 1/1, M 3/3) = 20. All teeth are open-rooted.