16 Questions
Which skin surface does NOT have hair present?
Scalp
What largely determines the thickness and pattern of hair distribution?
Genetic and hormonal influences
Which part of the hair anatomy consists of dead, keratinized epidermal cells?
Hair shaft
What structure protects the eyes from foreign particles similar to the eyebrows and eyelashes?
Nostril hair
Which skin surface is also known as the plantar surface of the feet?
Soles
What skin surface is associated with the term 'palmar'?
Palms
Which structure houses a nipple-shaped indentation containing areolar connective tissue and blood vessels?
Hair bulb
From which layer do cells of the hair matrix arise?
Stratum basale
What is the function of the arrector pili muscle?
Raising hair follicles to produce goosebumps
Which structure contains a germinal layer of cells known as the hair matrix?
Hair bulb
What is the role of hair matrix cells?
Producing new hairs
Where do cells of the internal root sheath originate from?
Hair matrix cells
What causes 'goose bumps' or 'gooseflesh' on the skin surface?
Contraction of the arrector pili muscles
Which part of the hair follicle is sensitive to touch?
Hair root plexus
What cells in the hair matrix differentiate into cells of the inner root sheath?
Basal cells
Which cells at the base of the hair root form the outer root sheath?
Basal cells
Test your knowledge on the anatomy and functions of hair. Learn about the distribution of hair on various skin surfaces and the genetic and hormonal influences on thickness and pattern. Explore the protective role of hair on different parts of the body.
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