TONGUE MIXED SALIVARY GLAND
ORAL CAVITY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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During the embryogenesis the epithelial lamina gives rise to the fomation to the vestibulum of the oral cavity. What is the biological mechanism of the programmed cell death realise the formation of the epithelial plate of the bucco-labrium sulcus?
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Necrosis
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Paranecrosis
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Apoptosis
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Amitosis
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Meiosis
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Explanation:
Detailed explanation-1: -The ectoderm gives rise to the anterior two thirds of the tongue and all of the hard palate. The endoderm forms the posterior third of the tongue, the floor of the mouth, the palato-glossal folds, the soft palate, and others. The oral epithelium is composed of stratified squamous epithelium.
Detailed explanation-2: -Apoptosis, as the most common type of programmed cell death during embryonic development, plays a number of key roles during odontogenesis, ranging from the budding of the oral epithelium during tooth initiation, to later tooth germ morphogenesis and removal of enamel knot signaling center.
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