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Describe various types of papillae found on tongue. |
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Answer» The upper surface of tongue has four types of papillae: (i) Vallate or Circumvallate papillae: They are usually about 8-12 in number. Each vallate papilla contains upto 100 taste buds. These papillae are the largest of four types of papillae. (ii) Filliform papillae: They are smallest and most numerous of the four types. They are conical. They are found mainly near the centre and most of the upper surface of tongue. These papillae contain tactile (touch) receptors but not taste buds. (iii) Fungiform papillae: They are much less numerous than the filliform papillae. They are rounded but smaller than vallate but larger than filliform papillae. They are most numerous near the tip of tongue and contains fire taste buds. (iv) Foliate papillae: These are not well-developed in human tongue. These get degenerated in early childhood. |
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