In the present study, various elements including trace namely P, Ca, V, Mn, Fe, Ni, Cu, Zn, Ba, As, Sr and Pb were estimated on the different parts of human teeth . Among the identified, P and Ca were found to be the major elements whereas all other elements were in trace level...
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Made up of mostly water, saliva also contains substances that break down food to begin the digestive process. In addition, saliva moistens your mouth so that you can easily speak, chew and swallow. It also repeatedly washes bacteria from your teeth and gums to help prevent cavities and gum ...
27 The diagram below shows parts of the human digestive system.A BC DE(a) Name parts B and E.[1]part B: Gullet part E: Small intestine(b) Which parts A, B, C, D or E of the digestive system are digestive juices produced?[1]A, C and E(c) How do the teeth help in the ...
Human Feces -- Treehouse自创L1人类系列All About Myself 03 05:17 Let's cook the egg! -- Treehouse自创L1人类系列All About Myself 04 03:12 Birds Vocabulary -- Treehouse自创L1动物系列Animals Series 01 05:12 Let's go camping! -- Treehouse自创L1All About Myself系列02 06:01 Reptiles ...
Particular parts of the human body, referred to as “organs of speech,” are used to articulate words. The organs of speech include the voice box, the lungs, the oral cavity, the nasal cavity, the pharyngeal cavity, the tongue, the teeth, the glottis, the lips and the inner surfaces ...
Humans' third molars, better known as wisdom teeth, can be used to chew food but are often considered unnecessary. In about 22% of people worldwide, at least one out of four wisdom teeth fails to grow in. When they do grow, the teeth are the most likely to become impacted, meaning ...
1.2. Parts of the Mouth lip One of the two soft parts around your mouth where your skin is redder or darker tongue The soft part inside your mouth that you can move about and use for eating and speaking molar One of the large teeth at the back o...
Let us have a detailed look at the digestive system of the human body, along with its parts and functions: Mouth Food starts its journey from the mouth or the oral cavity. There are many other organs that contribute to the digestion process, including teeth, salivary glands, and tongue. T...
Theteethare hard, white structures found in themouth. Usually used formastication, the teeth of differentvertebratespecies are sometimes specialized. The teeth ofsnakes, for example, are very thin and sharp and usually curve backward; they function in capturing prey but not in chewing, because sna...