Skin Structure
This outermost layer of the skin provides a barrier to infection and regulates transepidermal water loss.
What is the epidermis?
This term describes decreased skin elasticity, often assessed by gently lifting the skin.
What is turgor?
This is the minimum SPF recommended for sun protection.
What is SPF 15?
This is the most common cancer diagnosed in Canada.
What is skin cancer?
This bacterial infection presents with honey‑colored crusts.
What is impetigo?
These pigments in the epidermis determine natural skin color.
What is melanin?
In dark‑skinned individuals, this condition appears as ashen or gray and is best seen in mucous membranes.
What is cyanosis?
These devices increase the risk of skin damage by emitting concentrated UV radiation.
What are tanning beds?
This pre‑cancerous lesion appears as a flat, erythematous papule with a hard keratotic scale.
What is actinic keratosis?
This infection involves inflammation of the subcutaneous tissue and may require hospitalization.
What is cellulitis?
This middle layer contains collagen, elastic fibers, mechanoreceptors, and blood vessels.
What is the dermis?
This ABCDE criterion refers to a mole with uneven or jagged edges.
What is border irregularity?
These medications, including tetracycline and ciprofloxacin, increase sensitivity to sunlight.
What are photosensitizing medications?
This non‑melanoma cancer is locally invasive and often presents as a pearly papule.
What is basal cell carcinoma?
This viral infection causes a linear distribution of vesicles along dermatomes.
What is herpes zoster (shingles)?
This layer contains adipose tissue, larger nerves, and macrophages.
What is the subcutaneous (hypodermis) layer?
These tiny reddish lesions are difficult to see in dark skin tones.
What are petechiae?
UV damage to the dermis can cause these four changes: loss of elasticity, thinning, wrinkling, and this.
What is dryness?
This measurement determines melanoma tumor depth in millimeters.
What is the Breslow measurement?
This fungal infection presents as white, cheesy plaques in the mouth.
What is oral candidiasis?
These proteins protect epithelial cells from damage and are abundant in the epidermis.
What is keratin?
This type of scar is more common in dark‑skinned individuals and involves excessive collagen formation.
What is a keloid?
Even on these types of days, UV rays can penetrate and cause burns.
What are overcast days?
This type of skin cancer can be aggressive and metastasize, often appearing as scaly erythematous plaques or nodules.
What is squamous cell carcinoma?
This antiviral medication is commonly used to treat HSV and shingles.
What is acyclovir?