All statements are true regarding skin except – a) Skin is stratified squamous epithelium b) Melanocyte & merkel cells are immigrant cellsc) Keratin filaments are a hallmark of epidermal cellsd) Keratinization process cause hydration of cellse) Spines of spinous cells are formed from house keeping organelle
Correct Answer: de
Description: Following events occur during keratinization
Increase in cell size
Flattening of cells
Appearance of new cellular organelles, e.g. lamellar granules in stratum spinosum, keratohyaline granules and oadland bodies in stratum granulosum.
Metabolism changes from generalized to more focused with the synthesis of molecules (structural proteins and lipids) related to keratinization.
Progressive dehydration (not hydration).
Progressive shortening and final disappearance of the nucleus.
Changes in enzymes with degradation of cellular organelles and chromatin fragmentation → apoptosis in stratum corneum.
Finally, dead cells to break apart and slough away, a process is known as desquamation.
Category:
Dental
Get More
Subject Mock Tests
Practice with over 200,000 questions from various medical subjects and improve your knowledge.
Attempt a mock test nowMock Exam
Take an exam with 100 random questions selected from all subjects to test your knowledge.
Coming SoonGet More
Subject Mock Tests
Try practicing mock tests with over 200,000 questions from various medical subjects.
Attempt a mock test now