2.15 A. Where are salivary gland situated in Human being?
B. What are the main function of Saliva ? (Any one)
C. Why do walls of a trachea not collapse when there is less Air in it
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A) Salivary glands are located in the mouth. There are three pairs of large salivary glands. Parotid glands are found in front of and just below each ear. Submandibular glands are below the jaw.The sublingual glands are the smallest of the major salivary glands. These almond-shaped structures are located under the floor of the mouth and below either side of the tongue.
B) 1)The salivary glands produce saliva, which keeps the mouth and other parts of the digestive system moist. 2)It also helps break down carbohydrates (with salivary amylase, formerly known as ptyalin) and
3)lubricates the passage of food down from the oro-pharynx to the esophagus to the stomach
C) Due to presence of C shaped cartilaginous rings
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