Dermatology: Course Introduction
Terms in this set (41)
What are the layers of the epidermis?
: Consists of cholinergic neurons that release acetylcholine to the sweat glands.
: Consisting of adrenergic neurons that release norepinephrine to the sweat glands, arteriolar smooth muscle, and erector pili muscle
What systems innervates the skin? What do they do?
: Always burns, never tans. Skin is pale. Red hair and freckles is common.
: Usually burns, sometimes tans. Fair skin.
: May burn, usually tans. Darker skin.
: Moderate constitutional pigmentation. Latin america, middle eastern
: Marked constitutional pigmentation. Black.
What are the Fitzpatrick Skin Types?
: Visible hard surface
: Generates the bed
: Visible portion of the root (white half moon)
Hyponychium and bed
: Soft tissues under the plate
: Skin overlapping the nail.
Give the 5 general areas of nail structure.
List as many primary skin lesions as you can.
List as many secondary skin lesions as you can.
List as many special skin lesions as you can.
<1cm. Small Flat Skin spots.
Define a Macula
>1cm. Larger flat skin spots.
Define a Patch.
<1cm. A small skin spot with some elevation
Define a Papula.
>1cm. Skin spot with elevation. Can be rounded.
Define a Nodule
>1cm. Skin spot with elevation that is scaly and red. Can be on scalp, knees, and elbows.
Define a Plaque.
<1cm. Small area containing puss.
Define a Pustule
Larger area with puss.
Define an abscess
Fluid filled sac <1cm in size
Define a Vesicle
Fluid filled sac >1cm in size
Define a Bullae
Raised area. Red, swollen, change in shape.
Define a wheal
Flake of skin. Silvery looking (like sandpaper)
Define a scale.
Dried serum, blood, pus,
Define a crust.
Caused by chronic rubbing. This is thickened skin.
Define a Lichenification
Superficial loss of epidermis
Deep sore/open sore
Erosions on skin caused by scratching
Split/crack/linear groove in skin
Fibrotic connective tissue
Shrinking or thinning of skin.
Plug of sebaceous material and keratin lodged in openings of hair follicles
Newborn infants. Tiny white spots on nose. These are called "milk spots" and are formed from keratin.
Seen in mites and scabies. Tunnelling happens which are seen as small red lines through the skin. Linear marks.
Dilated blood vessels near surface of skin
Small pinpoint purpura
Macula or patch discolouration that appear red or purple
Lesion separated from other lesions by normal skin.
Affects only one side of the body
Lesions are grouped in a circle
Lesions are distributed randomly over most of the body.
A necrotic lesions which is a scab or dry crust that results form trauma, infection, or excoriation skin.
Distribution of skin lesions involve distal aspects of the head and extremities.
Involves skin creases and folds
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