Dermatology Quiz

What is the primary role of a dermatologist?

• To diagnose and treat hair loss

• To diagnose and treat diseases and disorders of the skin, hair, and nails

• To recommend skincare products

• To perform cosmetic skin procedures

Which of the following is a characteristic of healthy skin?

• Dry and cracked

• Contains 50–70% water and is smooth

• Prone to infections

• Excessively oily

Which layer of the skin is the thickest?

• Epidermis

• Dermis

• Subcutaneous Tissue

• Stratum Corneum

The stratum corneum forms a protective barrier using which substances?

• Collagen and elastin

• Keratin and lipids

• Melanin and sebum

• Sweat and sebum

Which layer of the epidermis is responsible for producing new skin cells and melanin?

• Stratum Lucidum

• Stratum Granulosum

• Stratum Spinosum

• Stratum Germinativum

The reticular layer of the dermis contains all of the following EXCEPT:

• Blood vessels

• Hair follicles

• Sweat glands

• Sensory nerve endings

The subcutaneous tissue is primarily composed of:

• Collagen fibers

• Melanin

• Adipose tissue

• Keratinocytes

Which type of nerve fibers control the arrector pili muscles causing goosebumps?

• Motor Nerves

• Secretory Nerves

• Sensory Nerves

• Nociceptor Nerves

Which skin pigment is responsible for red to yellow coloring?

• Eumelanin

• Pheomelanin

• Carotene

• Hemoglobin

What factor increases melanin production in the skin?

• Genetics

• Aging

• Sun exposure

• Water intake