Layers of the Dermis

ABCD

Asymmetry, border irregularity, color, diameter ("E" evolving)

Third degree burn

Entire thickness of skin is damaged; not painful, no regeneration of skin

Second degree burn

Epidermis &a upper dermal region are damaged; blisters, painful

Malignant melanoma

Melanocytes; most dangerous; 5% of skin cancers that appear spontaneously.

First degree burn

Only the epidermis is damaged; red, swollen, no permanent scars

pacinian corpuscle

an encapsulated ending of a sensory nerve that acts as a receptor for pressure and vibration.

apocrine sudoriferous gland

composed of a coiled secretory portion located at the junction of the dermis and subcutaneous fat

Stratum Basale

deepest layer of the five epidermis layers, which is the outer covering of skin in mammals.

flexure lines

dermal folds that occur at or near joints, where the dermis is tightly secured to deeper structures

papillary region

dermis is the region closest to the epidermis with papillae interdigitating with the epidermis; here, collagen fibers are thinner and loosely packed.

reticular region

lower layer of the dermis, found under the papillary dermis, composed of dense irregular connective tissue featuring densely packed collagen fibers.

Squamous cell carcinoma

is a health condition involving the uncontrolled growth of abnormal cells in the skin outer squamous cells of the epidermis.

Stratum Lucidum

is a thin, clear layer of dead skin cells in the epidermis named for its translucent appearance under a microscope. It is readily visible by light microscopy only in areas of thick skin, which are found on the palms of the hands and the soles of the feet.

Stratum Spinosum

layer of the epidermis found between the stratum granulosum and stratum basale.

dermal papillae

nourish all hair follicles and bring nutrients and oxygen to the lower layers of epidermal cells.

Epidermis

overlying the dermis

meissner's corpuscle

sensory nerve ending that is sensitive to mechanical stimuli, found in the dermis in various parts of the body.

ceruminous glads

simple, coiled, tubular glands made up of an inner secretory layer of cells and an outer myoepithelial layer of cells.

ceruminous glands

simple, coiled, tubular glands made up of an inner secretory layer of cells and an outer myoepithelial layer of cells. They are classed as apocrine glands. The glands drain into larger ducts, which then drain into the guard hairs that reside in the external auditory canal.

sebaceous gland

small gland in the skin which secretes a lubricating oily matter (sebum) into the hair follicles to lubricate the skin and hair.

Basal cell carcinoma

technical term for rodent ulcer.

Stratum Corneum

the horny outer layer of the skin

eccrine sudoriferous gland

the major sweat glands of the human body, found in virtually all skin, with the highest density in palms and soles, then on the head, but much less on the trunk and the extremities.

Dermis

the thick layer of living tissue below the epidermis that forms the true skin, containing blood capillaries, nerve endings, sweat glands, hair follicles, and other structures

Stratum Grabulosum

thin layer of cells in the epidermis. Keratinocytes migrating from the underlying stratum spinosum become known as granular cells in this layer.

arrector pili muscle

tiny muscle that attaches to the base of a hair follicle at one end and to dermal tissue on the other end. In order to generate heat when the body is cold,

tension lines

topological lines drawn on a map of the human body. They correspond to the natural orientation of collagen fibers in the dermis, and are generally parallel to the orientation of the underlying muscle fibers.