20 Questions
Which organ forms the primary physical barrier to pathogens?
Skin
What is the largest organ of the human body?
Skin
What is the function of the epidermis?
Provides structural integrity
Which type of cells make up the majority of the epidermis?
Keratinocytes
What is the outermost layer of the epidermis composed of?
Dead keratinocytes
Which layer of the skin contains blood vessels and nerve cells?
Dermis
What do oil glands in the skin produce?
Oils to keep the skin and hair flexible
Which part of the skin is avascular?
Epidermis
What is the main function of sweat glands in the skin?
Regulate body temperature
What is the function of melanocytes in the epidermis?
Produce melanin for skin pigmentation
Which glands are responsible for secreting oil onto the hair shaft?
Sebaceous glands
Where are sweat glands found in the body?
All over the body
What is the main function of sweat glands?
Producing sweat in response to internal temperature rise
What happens to blood vessels in the dermis when the body temperature rises?
They dilate, allowing more blood flow to the skin
What is the role of the hair follicle in hair growth?
Producing the hair shaft
What happens if the blood flow through the bulb of the hair follicle decreases?
The hair shaft is lost
What are nails made of?
Keratinized cells
Where do nails arise from?
The lunular, located at the base of the nail bed
What is the cuticle?
A layer of epidermis that covers the base of the nail
What is the main function of nails?
Protecting the ends of the digits
Test your knowledge about the skin and its functions in this informative quiz. Learn about the role of the skin as a barrier against pathogens, its importance in maintaining homeostasis, and its role in producing vitamin D.
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