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Q: What body part has a layer of dentine under a crown?
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Hardest substance in human body?

The strongest substance in the human body is DENTINE,a very hard material which resembles bone in composition but contain no haversian canals.The exposed portion of the tooth is covered with a thin layer of ENAMEL, which is even stronger than dentine. This hard part starts developing by forming a cap of predentine secreted by odonoblasts and enamel matrix formed on this predentine layer from ameoblsats.


What material is under the crown of the tooth?

The crown is made up of enamel which is the hardest tissue in the body. Under the layer of enamel is dentin which gives enamel its color. Dentin is softer than enamel. Underneath the dentin layer are pulp horns and pulp chambers.


Where in the human body would you find dentine?

Teeth


What is the function of fat layer?

The fat layer under the skin is also known as the subcutaneous layer and is the deepest layer of skin under the epidermis and the dermis. The fat layer helps to insulate the body from both heat and cold and it provides a storage area for energy as well as providing a protective layer of padding to help protect internal structures of the body.


What are Caries zones in enamel and dentin?

enamel caries: surface zone, body of lesion, dark zone, translucent zone dentinal caries: desrtuction, penetration, demineralisation, sclerotic dentine enamel caries: surface zone, body of lesion, dark zone, translucent zone dentinal caries: desrtuction, penetration, demineralisation, sclerotic dentine


What body systems does a gray wolf have?

The fur that coats the body of a gray wolf is made up of two parts, an under layer and an outer layer The outer layer is coarse, made to deter water and dirt The under layer is softer, for insulation. Wolves have two separate pelts, one made for winter and the other for summer. Males lose their thick winter coats faster than females.


What do you call tooth tissue?

Dentin (BE: dentine ) is a calcified tissue of the body, and along with enamel, cementum, and pulp is one of the four major components of teeth.


How good fat helps your body?

You need a"Essential Body Fat"to stay alive without getting to "excessive body fat" The fat layer that is directly under the skin called subcutaneous fat. This fat layer provides thermal protection and bruise protection.


Which layer of skin connects your body to your skin?

fatty layer


Why do penguins have a layer of fat in their body?

The layer of fat under their skin insulates them against the cold - just as it does in polar bears.


How do you make blubber?

Blubber is the layer of fat under a whale's skin. It comes from the food the whale eats, just like the rest of the body.


How much blubber does a humpback whale have?

Adult narwhals have an approximate 4 in. layer of blubber under their skin.