CPCA Dermatology Anatomy and Terminology 2 — Questions and Answers
Question 1: Which layer of the skin contains the sweat glands and hair follicle roots?
- Epidermis
- Dermis (Correct answer)
- Hypodermis
- Stratum corneum
Correct answer: Dermis
The dermis contains sweat glands, sebaceous glands, hair follicle roots, blood vessels, and nerve endings.
Question 2: The medical term 'xeroderma' refers to which skin condition?
- Excessive oiliness
- Abnormal dryness (Correct answer)
- Yellowing of the skin
- Excessive sweating
Correct answer: Abnormal dryness
Xeroderma means abnormally dry skin, derived from the Greek 'xero' (dry) and 'derma' (skin).
Question 3: What term describes a group of small vesicles clustered together, as seen in herpes zoster?
- Bulla
- Pustule
- Herpetiform (Correct answer)
- Lichenification
Correct answer: Herpetiform
Herpetiform describes lesions arranged in clusters resembling herpes simplex or zoster eruptions.
Question 4: The arrector pili muscle is responsible for which skin response?
- Sebum production
- Sweat secretion
- Goosebumps (cutis anserina) (Correct answer)
- Melanin synthesis
Correct answer: Goosebumps (cutis anserina)
Contraction of the arrector pili muscle causes hair to stand upright, producing goosebumps (cutis anserina).
Question 5: Which term describes a skin lesion that is flat, non-palpable, and less than 1 cm in diameter?
- Papule
- Macule (Correct answer)
- Plaque
- Nodule
Correct answer: Macule
A macule is a flat, non-palpable color change in the skin that is less than 1 cm in diameter.
Question 6: The term 'onychomycosis' refers to a fungal infection of which structure?
- Skin
- Hair shaft
- Nail (Correct answer)
- Sebaceous gland
Correct answer: Nail
Onychomycosis is a fungal infection of the nail, derived from 'onycho' (nail) and 'mycosis' (fungal infection).
Question 7: Langerhans cells found in the epidermis primarily function as which cell type?
- Keratin-producing cells
- Antigen-presenting immune cells (Correct answer)
- Melanin-producing cells
- Touch-sensing mechanoreceptors
Correct answer: Antigen-presenting immune cells
Langerhans cells are dendritic antigen-presenting cells of the immune system located in the epidermis.
CPCA Dermatology Anatomy and Terminology 2
Which layer of the skin contains the sweat glands and hair follicle roots?