Multiple Choice
A neonate undergoing phototherapy treatment must be monitored for which adverse effect?
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5. Integumentary System
Introduction to the Integumentary System
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What is keratinization in the context of the integumentary system?
A
The process by which sweat glands secrete sweat to regulate body temperature.
B
The process by which skin cells produce melanin to protect against UV radiation.
C
The process by which epidermal cells become filled with keratin protein, die, and form a protective layer.
D
The process by which sebaceous glands produce oil to lubricate the skin.
Verified step by step guidance1
Keratinization is a process that occurs in the epidermis, the outermost layer of the skin.
Epidermal cells, known as keratinocytes, begin their life cycle in the basal layer of the epidermis.
As these keratinocytes move upwards through the layers of the epidermis, they produce and accumulate a protein called keratin.
During this process, the keratinocytes undergo a transformation where they lose their nuclei and organelles, effectively dying.
The dead keratin-filled cells form a tough, protective outer layer of the skin, which helps to prevent water loss and protect against environmental damage.
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