Flashcards in Week 3: Derm Deck (100)
The skin has 2 layers:
The epidermis is the:
Outer highly differentiated later.
The dermis is the:
Inner supportive layer
Melanin is found in what layer?
The epidermis has 2 layers:
1. Stratum corneum- outer horny layer
2. Cellular stratum
The outer horny layer of the epidermis is:
A layer of dead keratinized cells and is the derivation of skin color.
The dermis is made up of:
Connective tissue or collagen,elastic tissue, sensory nerve fibers, blood vessels, sebaceous glands, and hair follicles.
Epidermal appendages include:
Types of sweat glands:
Type of sweat gland that opens directly onto the surface of the skin and regulates body temperature through water secretion.
This is formed by epidermal cells that invaginate into the dermal layers.
Type of hair that is short, fine, and nonpigmented:
Type of hair that is coarser, longer, thicker, and usually pigmented:
These secrete sebum and are under control of sex hormones (primarily testosterone).
Sebum in the newborn:
Holds water in the skin, is present for the few weeks of life and produces milia and seborrheic dermatitis (cradle cap).
When do eccrine sweat glands secrete in response to heat in infants?
Do not start to secrete until the first few months of life and then only minimally throughout childhood.
Questions to ask for subjective data r/t derm:
Past hx of skin disease, allergies, hives, psoriasis, or eczema?
Change in color?
Change is mole size, shape, color, and tenderness?
Rash or lesions?
What is the most common of skin symptoms?
Angle of nail base should be:
About 160 degrees
Abcde rule to detect suspicious lesions:
E- elevation and enlargement
What type of microscopic examination of skin scrapings can be used to examine for fungal disorders (hyphae or spores)?
Potassium hydroxide (KOH)
Annular or circular
Lesions that flow/come together:
Lesions that do not become blended:
Lesions that cluster together:
Lesions that are whirling in a circle:
Lesions in concentric rings:
Target or iris
Lesions that are in a line:
Lesions that are merged circles: