The skin

What is the outermost layer of the skin?

B) Epidermis

Which layer of the epidermis is responsible for cell division and melanin production?

C) Stratum basale

Which epidermal cells are responsible for immune defense?

D) Langerhans cells

What is the main function of the hypodermis?

C) Insulation and energy storage

Which layer of the dermis contains dermal papillae that enhance grip and house capillaries?

B) Papillary layer

Which gland is responsible for thermoregulation?

C) Eccrine gland

What is the primary function of melanocytes?

C) Produce melanin to protect against UV radiation

Which structure in the skin is responsible for detecting pressure and vibration?

B) Pacinian corpuscles

What is the main structural protein found in the epidermis?

C) Keratin

Which of the following is NOT a function of the skin?

B) Vitamin C synthesis

What is the role of sebaceous glands?

B) Secrete sebum to moisturize the skin and hair

Which skin adaptation results from repeated friction?

B) Callus formation

Which type of sweat gland becomes active during emotional stress?

B) Apocrine gland

What triggers the synthesis of vitamin D in the skin?

B) UV radiation

What is the main function of the stratum corneum?

C) Formation of a protective barrier