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Is also known as a "boil." A boil is a tender, dome-shaped skin lesion caused by an infection around a hair follicle with Staphylococcus aureus. Antibiotics are often not very helpful in treating abscesses.

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1. a condition in which certain facial blood vessels enlarge, giving the cheeks and nose a flushed apperance

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a skin disease marked by red, itchy, scaly patches.

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a localized bleeding outside of blood vessels, due to either disease or trauma including injury or surgery and may involve blood continuing to seep from broken capillaries

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a discoloration of the skin resulting from bleeding underneath, typically caused by bruising.

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A contusion is any damage to the body that doesn't break the skin but ruptures the blood capillaries beneath, resulting in a handsome-looking discoloration.

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a congenital absence of pigment in the skin and hair (which are white) and the eyes (which are usually pink).

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It is sometimes described as a parafunctional activity, the common use of the mouth for an activity other than speaking, eating, or drinking.

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also known as tinea unguium, is a fungal infection of the nail. ... Toenails or fingernails may be affected, but it is more common for toenails to be affected.

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The medical term for what is better known as an ingrown toenail. From onycho-, nail + crypto-, hidden or buried + -sis, condition. See: Ingrown toenail.

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the partial or complete absence of hair from areas of the body where it normally grows; baldness.

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abnormal growth of hair on a person's face and body, especially on a woman.

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A skin wheal is a patch on the skin that is elevated, discolored, changes shape, and often itches

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A wart by another name, a local growth of the outer layer of the skin (the epidermis) caused by a virus. ... A wart on the sole of the foot is a plantar wart

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. Scales occur when the outermost layer of the epidermis becomes dry and flaky and peels.

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Plaque psoriasis is a chronic autoimmune condition. It appears on the skin in patches of thick, red, scalyskin.

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A papule has distinct borders, and it can appear in a variety of shapes.

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They are usually found as a painless lump. The appearance of many nodules under the skincould indicate neurofibromatosis.

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It doesn't involve any change in the thickness or texture of the skin. ... Certain conditions such as vitiligo are characterized by white or lighter macules or patches on the skin.

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A skin lesion is a part of the skin that has an abnormal growth or appearance compared to the skin around it. ... For example, if someone scratches a mole until it bleeds, the resulting lesion, a crust, is now a secondary skin lesion

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A skin lesion is a part of the skin that has an abnormal growth or appearance compared to the skin around it

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a small gland that secretes sweat, situated in the dermis of the skin. Such glands are found over most of the body, and have a simple coiled tubular structure.

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Vitamin A also stimulates fibroblasts—the cells responsible for developing tissue that keeps skin firm and healthy—in the deep layers of your skin.

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: Keratin is the main protein in your skin, and makes up hair, nails, and the surface layer of the skin.

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vitamin D contributes to skin cell growth, repair, and metabolism. It optimizes the skin's immune system and helps destroy free radicals that can cause premature aging.

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A vitamin D deficiency can affect more than just your bones; it can affect your skin as well.

Healthy vitamin D levels might help prevent skin from prematurely aging but too much sun leads to accelerated skin aging.

Some studies have found that vitamin D can help treat skin conditions like dry skin, psoriasis, or eczema.

With more and more research showing that most Americans don't get enough vitamin D, you might be wondering if a vitamin D deficiency is actually a big deal for your overall health and well-being.

Getting enough vitamin D can impact your health in many ways, especially when it comes to your skin.

INSIDER spoke with two board-certified dermatologists and a registered nurse, and they explained the link between vitamin D and your skin, revealing why it's crucial to get the right amount by way of adequate sun exposure, foods rich in vitamin D, or supplements.

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Here's how a vitamin D deficiency might affect your skin

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A vitamin D deficiency can affect more than just your bones; it can affect your skin as well. Healthy vitamin D levels might help prevent skin from prematurely aging but too much sun leads to accelerated skin aging. Some studies have found that vitamin D can help treat skin conditions like dry skin, psoriasis, or eczema.

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Collagen is a tough, insoluble protein found throughout the body in the connective tissues that hold muscles and organs in place.

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A subcutaneous layer of loose connective tissue containing a varying number of fat cells.

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

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WoundEducators.com | Online Wound Care Certification Courses

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In the previous article " Anatomy of the Skin " we discussed an overview of the skin and the epidermis. In this article we will focus on the dermis, subcutaneous tissue and deeper layers.

The Dermis

Although the dermis has fewer layers that are much less well defined, it is equally important. The dermis is quite elastic and pliable and is very vascular, owing to the presence of numerous capillary beds that provide nutrition to both layers. Superficial lymphatics located in the dermis are responsible for returning protein, water and other substances from the various body tissues back into the blood vessels.

The dermis has two layers:

papillary dermis- made up of loosely woven connective tissue fibers embedded in a jelly-like substance known as ground substance. This layer conforms exactly to the contours of the stratum basale of the epidermis. Together with the basement membrane, which acts as a selective filter for substances moving between the two layers, the papillary dermis helps to protect the appendages of the epidermis and provides structure and support to the epidermis.

reticular dermis- thicker and deeper and is made up of dense connective tissue that is irregularly arranged, providing additional support.

Specialized cells are also found in the dermis. Fibroblasts produce elastin and collagen, which give the skin its elasticity and strength. Mast cells, macrophages and white blood cells assist in fighting infection, each with their own specialized function. The dermis also contains sensory fibers which provide the brain with information on temperature, pressure, vibration and touch.

The dermis serves many functions. In addition to nourishing both layers, it houses the appendages of the epidermis, plays an active role in controlling infection, provides sensation and assists in control of body temperature.

Subcutaneous Tissues

The subcutaneous tissues support the skin and are composed of adipose tissue and fascia. Adipose tissue houses our body's fat and is made up of loose connective tissue. It also stores fat-soluble vitamins (A, D, E and K). Fascia is made up of fibrous and tough connective tissue that surrounds and separates structures such as bone and muscle and promotes movement between them. Subcutaneous tissue helps to cushy bony prominences.

Deeper Tissues

Deeper tissues include bone, the joint capsules, muscle, ligaments and tendons. Each of these structures has a characteristic appearance. It is important to be able to distinguish between these structures when working with deep wounds that extend into or expose these deeper tissues, particularly if debridement is to be part of your job description.

Understanding the anatomy of the skin is important for any clinician who cares for wounds. Interested in wound care certification? Wound certification can boost your career and, even more importantly, help you to more effectively manage your patients' wounds. View our wound care courses to learn more.

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In the previous article " Anatomy of the Skin " we discussed an overview of the skin and the epidermis. In this article we will focus on the dermis, subcutaneous tissue and deeper layers. Although the dermis has fewer layers that are much less well defined, it is equally important.

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the surface epithelium of the skin, overlying the dermis.