Skin Anatomy and Functions Quiz

The skin is made of three layers: epidermis (outermost), dermis (inner), and hypodermis (innermost).

The outermost layer of skin, providing a protective barrier.

The inner layer of skin, containing blood vessels, nerves, and hair follicles.

The innermost layer of skin, containing fat and connective tissue, providing insulation and cushioning.

Sensory receptors in the epidermis, associated with touch sensation.

Immune cells in the epidermis, part of the skin's immune response.

Sweat glands found throughout the skin, producing sweat for thermoregulation.

Larger sweat glands primarily in the armpits and genital areas, active in puberty and involved in scent.

Protection, sensation, temperature regulation, excretion, and vitamin D synthesis.

Age-related changes in skin including thinning, dryness, and increased vulnerability to injury.

Small, bright red spots common in older adults.

Age spots or liver spots, caused by sun exposure.

Folds in the skin, due to loss of elastin and collagen.

Dryness of the skin.

Increased bilirubin in the blood, often due to liver issues or blood breakdown.

Yellowing of the sclera (whites of the eyes), mucous membranes, and skin.

Heart or lung problems causing low blood oxygen.

Exposure to cold, or anxiety.

Bluish discoloration of skin, mucous membranes, and nail beds; symptom of low blood oxygen.

Increased red blood cells causing capillary stasis; skin appears ruddy-blue.

Skin is bright cherry-red, especially on face and torso, with cherry-red nail beds, lips, and oral mucosa.

Poor venous return causes hemosiderin buildup, skin cracking, and potential ulcers in lower extremities; skin discoloration (brown/rusty).

Edema, hyperpigmentation (brown/reddish), warmth at feet with palpable pulses (unless an artery issue).

Warmth at feet indicated by palpation, while no coexisting arterial issue is present.

The reddish-brown discoloration of skin due to iron-containing pigment in tissue.

A sign, appearing as cherry-red color in nail beds.

The borders of a wound, assessed for undermining (extension under the skin) or epibole (rolled edges).

The diameter and depth of a wound, measured in centimeters (cm).

The area around a wound, assessed for factors like color, texture, firmness and scaling.

A sample of skin tissue taken for microscopic examination to diagnose skin conditions like malignancy.

A method to identify allergies by applying suspected allergens to the skin under patches.

Scraping skin samples with a blade to examine under a microscope for fungal or parasite infections.

Pictures taken to document skin conditions, their changes, and treatment progress.

Skin biopsies are performed to diagnose skin conditions, including cancer, infection, and inflammation. They help determine the exact cause of a skin problem.

An injury to the skin and underlying tissue, often caused by prolonged pressure on a body part.

A linear crack in the skin that may extend to the dermis.

Flakes of dead skin cells.

Dried residue of fluids, such as blood or pus, on the skin.

A mark left after a wound heals, made of connective tissue.

An overgrown scar that is elevated and irregular.

Thinning and transparent skin due to loss of collagen and elastin.

Thickening and roughening of skin due to irritation or repeated rubbing/scratching.

The surface of a wound.

Dead tissue in a wound.

Yellow, white, or gray dead tissue in a wound

New reddish connective tissue forming in a healing wound.

Healthy skin cells that cover a healing wound.

Fluid present in a wound

Visual examination for the appearance of the surface of the wound bed.

Jaundice is most noticeable at the junction of the hard and soft palate, and on the palms.

High levels of carotene in the blood from eating foods rich in carotene.

Yellow-orange coloration in the forehead, palms, soles, and nasolabial folds without scleral or mucous membrane yellowing.

Kidney failure leading to urochrome build-up in blood.

Skin might appear orange-green, gray, or pale, possibly with bruising (ecchymoses and purpura).

A flat, non-palpable skin discoloration, smaller than 1cm.

A larger, flat, non-palpable skin discoloration, greater than 1cm.

A small, solid, palpable skin elevation, less than 0.5cm.

A larger, raised skin elevation, greater than 0.5cm, often composed of fused papules.

A solid, palpable skin elevation, 0.5-2 cm, extending deep into the dermis.

A solid mass, larger than 1–2 cm, often with less sharp borders than nodules.

A small, fluid-filled elevtion, less than 0.5cm, in the epidermis.

A large, fluid-filled elevation (greater than 0.5cm) in the epidermis.

Elevated skin lesion with transient borders, caused by fluid movement into the dermis.

Pus-filled vesicle or bulla.