What is the Eponychial fold?
The eponychium refers to the dorsal nail fold and the skin proximal to the nail, while the hyponychium refers to the palmar skin distal to the nail. The paronychium refers to the skin around the lateral nail folds.
Where is Perionychium located?
It serves to protect the sides of the nail plate. The perionychium is the skin surrounding the nail and it’s frequently a problem area.
What is the function of the proximal fold?
What’s the function of the proximal nail fold? In addition to securing the nail, the proximal nail fold protects the nail as it grows. The proximal nail fold and cuticle also create a seal between the matrix and nail.
What is Perionychium in the parts of the nail?
The perionychium includes the nail bed, nail fold, eponychium, paronychium, and hyponychium. The nail bed, the soft tissue beneath the nail, includes the germinal matrix proximally and the sterile matrix distally.
What is Eponychial Marsupialization?
The most common surgical technique used to treat chronic paronychia is called eponychial marsupialization. In this technique, the affected digit is first anesthetized with 1% lidocaine (Xylocaine), with no epinephrine, using the digital ring block method.
What is the function of Perionychium?
The flat nail on the end of the human finger allows for increased sensory perception in the pad of the finger and for efficient and accurate picking up of small objects. It also serves as a guard to protect the very sensate fingertip, and functions as a temperature regulator.
What is the Onychodermal band?
The onychodermal band is the point of strongest attachment between the nail and the underlying digit. Nail folds: Proximal and lateral. These are epithelial structures. The cuticle protects the matrix by sealing off the potential space between the nail plate and the proximal nail fold.
What is the proximal nail fold called?
eponychium
In human anatomy, the eponychium is the thickened layer of skin at the base of the fingernails and toenails. It can also be called the medial or proximal nail fold. The eponychium differs from the cuticle; the eponychium comprises live skin cells whilst the cuticle is dead skin cells.
Why is my proximal nail fold peeling?
A vitamin deficiency is one possible cause of cracked nails, peeling nails or peeling skin on fingers near nails. A lack of niacin (also called vitamin B-3) can cause peeling skin, while a lack of biotin (vitamin B7) is a possible cause of brittle nails that easily crack or peel.
What is a Fellom?
What is a Felon? An infection inside the tip of the finger can form an enclosed pocket of pus (or abscess) that is very painful as it expands. A felon is a fingertip abscess deep in the palm side of the finger. It usually is caused by bacterial infection, most often from growth of Staphylococcus aureus bacteria.
How do you treat fate fingers?
You can take care of an infected finger by following these instructions from the doctor:
- Wash the finger with clean water two times a day.
- Next, cover the area with a thin layer of antiseptic ointment and a bandage.
- Take the antibiotics as prescribed.
- Take over-the-counter painkillers if required.
What is proximal nail fold?
The skin bordering the lower end of the nail is called the proximal nail fold. A thin layer of skin, known as the cuticle, grows over the nail there.
What causes Onychodermal band?
When the onychodermal band at the distal aspect of the nail unit is disrupted, onycholysis can occur. Trauma, frequent and prolonged exposure to water, and exposure to contact irritants are common precipitating factors. Onycholysis can also be caused by an allergic contact dermatitis from nail cosmetics.
What is Lovibond angle?
The Lovibond angle is the angle found between the proximal nail fold and the nail at the location at the exit of the nail from the nail fold. Usually, this angle is less than 180 degrees in normal individuals.
What is a nail fold?
The nail fold is the tissue that encloses the nail matrix at the root of the nail. It attaches the nail to the rest of the skin through the protective cuticle. Paronychia is a common infection that afflicts the skin around the nails.
What is the other name for the lateral nail folds?
The nail plate emerges from the proximal nail fold and is bordered on either side by the lateral nail folds (paronychium).
Do proximal nail folds grow back?
Skin has amazing restorative powers, so if the frame or the proximal nail fold are cut, then it will recover. However, skin if continually cut, will grow thicker, to protect itself, and grow calluses and scar tissue.
Why does my proximal nail fold hurt?
Bacterial nail infection most often affects the proximal nail fold of the fingers and less commonly affects the toes. Acute: The proximal nail fold is red, swollen, painful, and may contain pus. Usually one nail is affected.
What is Onychauxis or hypertrophy?
Overview. Onychauxis is a nail disorder that causes fingernails or toenails to grow abnormally thick. Over time, the nails may become curled and turn white or yellow. This thickening of the nail may force the nail plate (the part you paint with nail polish) to separate from the nail bed.
What is Onychoptosis?
ABSTRACT. Onychoptosis is the periodic shedding and falling of one or more nails, in whole or part. It can be seen after fever, trauma, adverse reaction to medications, and in systemic illnesses including syphilis (syphilitic onychia).
Why is it called felon finger?
An infection of the pad of the finger is called a felon. The finger is made up of several small areas of tissue. Because of this, pus from an infection can build up with no place to go.