Skin and its Functions

What is the function of the skin?

• Protection from water, air, infection, chemicals, UV radiation

• Production of Vitamin D

• Sensation of pressure, heat, cold, & pain

• All of the above

Which layer of the skin is responsible for water-proofing?

• Stratum basale

• Stratum spinosum

• Stratum granulosum

• Stratum corneum

What is the function of melanocytes?

• Produce sweat

• Produce Vitamin D

• Produce melanin

• Produce sebum

What is the difference between light-skinned and dark-skinned people in terms of melanocytes?

• Light-skinned people have more melanocytes

• Dark-skinned people have more melanocytes

• Light-skinned and dark-skinned people have the same number of melanocytes

• Melanocytes are not present in light-skinned people

What is the main cause of skin cancer?

• Excessive sweating

• Exposure to UV radiation

• Lack of Vitamin D

• Genetic factors

Which type of skin cancer is characterized by uncontrolled division of melanocytes?

• Melanoma

• Basal cell carcinoma

• Squamous cell carcinoma

• None of the above

Which layer of the skin contains blood vessels, sweat glands, and hair follicles?

• Epidermis

• Dermis

• Hypodermis

• Stratum corneum

What is the function of sebaceous glands?

• Production of sweat

• Production of melanin

• Production of sebum

• Production of oil

Which type of sweat glands are abundant and found on the palms, soles of feet, and forehead?

• Eccrine glands

• Apocrine glands

• Sebaceous glands

• Melanocytes

What is the main component of sweat?

• Water

• Salt

• Vitamins

• Proteins