GENERAL HISTOLOGY

TONGUE MIXED SALIVARY GLAND

ORAL MUCOSA

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Following are not usually found in the keratinocytes of thestratum spinosum of keratinized oral epithelium?
A
keratohyaline granules
B
tonofibrils.
C
membrane coating granules.
D
ribosomes.
Explanation: 

Detailed explanation-1: -The keratinocytes in this layer are called corneocytes. They are devoid of almost all of their water and they are completely devoid of a nucleus at this point. They are dead skin cells filled with the tough protein keratin.

Detailed explanation-2: -Keratohyalin granules primarily exist within the stratum granulosum, with some present in the stratum spinosum.

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