eongue. it is a muscular structure attached to the mouth by a fold of soft tissu

Question

eongue. it is a muscular structure attached to the mouth by a fold of soft tissue known as the lingual Pusteriorly, it is attached to the hyoid bone Run your r across the tongue and feel its rough, uneven texture of the surface is due to the presence of sensory pupillae, where the taste buds are located Ventral view MAKING CONNECTIONS Compare the dental formulas of the pig and the human and identify similarities and differences between the two. Based on your dental assessment, what comparison can you make in the diets of pigs and humans? practice? Go to MasteringA&P;>Study Area > Menu > Lab Tools >PAL >Fetal Pig Digestive System > Salivary glands Want more and Oral cavity photos

Explanation / Answer

A dental formula is a summary of a mammal's teeth. Almost all mammals have 4 kinds of teeth, namely--

* incisors or biting teeth

* canines or tearing teeth

* premolars or grinding teeth and

* molars or crushing and chewing teeth

Teeth number and forms have adapted to different feeding methods. With evolution, different mammal groups have evolved distinct dental features, in the number and type of teeth, and in the shape and size of the chewing surface.

The number and type of teeth is written as a dental formula for one side of the mouth, or quadrant, with the upper and lower teeth shown on separate rows.

In each set, incisors (I) are indicated first, canines (C) second, premolars ( P) third and finally molars ( P ).

So, for humans I:C:P:M can be denoted as 2:1:2:3 for one side of the upper mouth.

Since ,dental formula is written in the form of a fraction so human adult teeth formula will be :

  2:1:2:3/ 2:1:2:3 OR 2123/ 2123

  Adult total is double the formula i.e 32 .

Adult pigs have a total of 44 teeth. Wild pigs have tusks and large front teeth that they use for defence and also for digging roots out of the ground. In domesticated pigs, there are no tusks.

The dental formula of pigs is 3:1:4:3/3:1:4:3 OR 3143/ 3143

i.e 11 teeth in one half of the mouth, which brings us to a total of total of 22 teeth each in upper and lower jaws.

Humans are omnivores but we eat cooked food . So, our teeth are not as sharp and strong as those of the pigs.

Pigs are voracious eaters. In boars , the canine or tusk grow throughout their life . The lower tusks are kept sharp by friction against the upper ones. There are numerous tubercles on the occlusal surface of molars making them irregular and hence ideal for chewing and grinding food.

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