This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Anatomy of skin, Subject name: Dental
Dead Layer of epidermis- 
Select and explain. 
A. Stratum basale, B. Stratum spinosum, C. Stratum corneum, D. Stratum granulosum
C: Stratum corneum
Answer: C: Stratum corneum 
Explanation: Stratum corneum the outermost layer of the epidermis made up of terminally differentiated, dead keratinocytes known as corneocytes. Corneocytes are devoid of cytoplasm and organelles, but loaded with keratin filaments in an amorphous protein matrix, which is held together by the cornified envelope. Ref Harrison20th edition pg 1233