Noah Sinclair
The quick of a nail is the soft, sensitive flesh underneath it. In technical terms, it is known as the hyponychium or the nail bed. The word quick is used in the phrase cut to the quick, which refers to the pain caused by cutting this soft flesh. The quick is the only living part of a nail and is identifiable by its pink colour. It contains nerves and blood vessels that provide nourishment to the nail.
| Characteristics | Values |
|---|---|
| Name | Hyponychium |
| Other Names | Quick, nail bed |
| Location | Beneath the nail plate at the junction between the free edge and the skin of the fingertip |
| Composition | Epithelial tissue, keratin |
| Function | Forms a seal that protects the nail bed |
| Blood Supply | Contains blood vessels and nerves |
| Appearance | Darker band of skin before the nail plate leaves the nail bed |
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What You'll Learn
- The quick is the hyponychium, the epithelium located beneath the nail plate
- The quick is the living, tender flesh under the nail
- The nail plate is the hard nail area from the nail root to the free edge
- The nail bed is the formation of cells that lies just under the nail plate
- The nail matrix is the active tissue that generates cells
The quick is the hyponychium, the epithelium located beneath the nail plate
The quick, or hyponychium, is the epithelium located beneath the nail plate. The hyponychium is the thickened portion of the epithelium underlying the free edge of the nail plate. The nail plate, or nail body, is the hard nail area from the nail root to the free edge, made of translucent keratin protein. The nail plate is strongly attached to the nail bed and does not contain any nerves or blood vessels.
The nail bed is the skin beneath the nail plate, to which it is strongly attached. The nail bed is made of two types of tissues: the dermis and the epidermis. The epidermis is attached to the dermis by tiny longitudinal "grooves" called matrix crests. The nail bed contains nerves and blood vessels, which supply nourishment to the entire nail unit.
The nail matrix is the active tissue that generates cells. The cells harden as they move outward from the nail root to the nail plate. The nail matrix is also known as the matrix unguis, keratogenous membrane, or onychostroma. It is the part of the nail bed that is beneath the nail and contains nerves, lymph, and blood vessels. The matrix produces cells that become the nail plate. The width and thickness of the nail plate are determined by the size, length, and thickness of the matrix, while the shape of the fingertip bone determines if the nail plate is flat, arched, or hooked.
The quick, or hyponychium, forms a seal that protects the nail bed from pathogens. The onychodermal band is a band of bunched-up tissue located behind the hyponychium, which improves its ability to prevent pathogens from infecting the nail bed.
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The quick is the living, tender flesh under the nail
The quick, or hyponychium, is the soft, tender flesh underneath the nail plate. It is the only living part of a nail and is sometimes referred to as the "nail bed". The word "quick" comes from the archaic meaning of the word, which is "alive", as opposed to the "dead" nail. The quick is the source of nourishment for the nail, providing the necessary blood and nerve supply.
The nail plate, on the other hand, is the hard, translucent keratin protein that makes up the visible part of the nail. It is attached to the nail bed and does not contain any nerves or blood vessels. The nail plate is formed by the nail matrix, which generates new cells that harden as they move outward. The thickness of the nail plate is determined by the size of the matrix.
The quick is important in protecting the sensitive flesh beneath the nail from injury and infection. It also aids in enhancing the sensitivity of the fingertip and improving delicate movements. When trimming nails, it is important to avoid cutting the quick, as it can be painful and cause bleeding.
In addition to its role in nail anatomy, the quick is also referenced in the common phrase "cut to the quick", which means to cause emotional pain or distress. This phrase further emphasizes the sensitivity and importance of the quick.
Understanding the structure of the nail, including the quick, is crucial for proper nail care and maintenance. By knowing the difference between the hard nail plate and the soft, tender quick, individuals can take appropriate measures to ensure the health and well-being of their nails.
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The nail plate is the hard nail area from the nail root to the free edge
The nail plate, also known as the nail body, is the hard, outer portion of the nail unit, formed by layers of keratin. The average person has 50 layers of keratin cells that make up the nail plate, though some people have more or fewer layers depending on the size of their matrix. The nail plate is the most visible part of the nail, covering the area from the nail matrix to the free edge and beyond.
The nail plate is formed in the nail matrix, where skin cells are modified and keratinised to become the hard, flat cells of the nail plate. The nail matrix is the active tissue that generates cells, and it is also known as the matrix unguis, keratogenous membrane, or onychostroma. The nail matrix is the only living part of a nail. As new nail plate cells are made, they push older nail plate cells forward, and in this way, older cells become compressed, flat, and translucent. This process gives the nail its strength and flexibility.
The nail plate is strongly attached to the nail bed, which is the skin beneath the nail plate. The nail bed provides a smooth surface for the growing nail plate to slide over and is highly innervated, which is why removal of the nail plate is often excruciatingly painful. The nail bed is also where the nail receives essential oils and moisture to keep it healthy and flexible.
The hyponychium, or the "quick," is the thickened portion of epithelium underlying the free edge of the nail plate. It forms a seal that protects the nail bed from pathogens. The word "quick" refers to the living flesh beneath the dead nail, as in the phrase "cutting to the quick."
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The nail bed is the formation of cells that lies just under the nail plate
The quick part of a nail is the hyponychium, the epithelium located beneath the nail plate at the junction between the free edge and the skin of the fingertip. It is sometimes called the "quick", as in the phrase "cutting to the quick". The quick is the flesh under the nail, where the nail itself is dead, but the flesh is alive.
Now, the nail bed is the area directly under the nail plate and consists of two structures: the nail bed epithelium and the underlying dermis. The nail bed epithelium is a type of epithelial tissue that is extremely sticky, gluing itself to the underside of the nail plate and holding it in place. The dermis beneath the nail bed holds onto the nail bed epithelium by having a series of interlocking ridges and grooves, which allow the nail plate to grow smoothly and securely. The nail bed is responsible for the production of new nail cells, which gradually push older cells outward toward the fingertips, resulting in visible nail growth.
The nail bed is susceptible to damage and infection if not properly cared for. It is paramount to protect the nail bed during any nail treatments involving the nail plate. The nail bed is one of the many elements that comprise nail anatomy, and it is extremely important as it affects the overall health and appearance of the nails.
The nail plate, often referred to simply as "the nail," is the visible part of the nail. It is composed of densely packed keratin cells, which gives the nail its strength and flexibility. The nail plate is made up of non-living, keratinized cells, and it does not contain any nerves or blood vessels. The nail plate is strongly attached to the nail bed and has grooves on its underside that help anchor it to the nail bed and maintain proper nail growth.
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The nail matrix is the active tissue that generates cells
The quick part of a nail is the hyponychium, the epithelium located beneath the nail plate at the junction between the free edge and the skin of the fingertip. It is sometimes called the "quick", as in the phrase "cutting to the quick". The quick is the living flesh beneath the dead nail.
Now, the nail matrix is the active tissue (or germinal matrix) that generates cells. It is the part of the nail bed that is beneath the nail and contains nerves, lymph, and blood vessels. The nail matrix creates new cells that become your fingernails or toenails. The matrix produces cells that become the nail plate. The width and thickness of the nail plate are determined by the size, length, and thickness of the matrix, while the shape of the fingertip bone determines if the nail plate is flat, arched, or hooked. The matrix will continue to produce cells as long as it receives nutrition and remains in a healthy condition. As new nail plate cells are made, they push older nail plate cells forward; and in this way, older cells become compressed, flat, and translucent.
The nail matrix has two parts: the germinal matrix and the sterile matrix. The germinal matrix is the area of the nail below the lunula (closest to the knuckle) and is responsible for about 90% of nail production. The sterile matrix is responsible for the remaining 10% of cells that make up your fingernails and toenails, but it is more important in keeping your nail attached to the underlying skin. The lunula (white crescent shape at the base of your nail) is the only visible part of your nail matrix. However, some people don’t have visible lunulas, and that’s normal, too.
The cuticle (the white or transparent skin at the base of your nail) and the proximal nail fold (skin at the base of your nail below your cuticle) act as a protective layer for the matrix. The cuticles form a watertight barrier at the junction of the keratin plate, preventing water and any bacteria from penetrating.
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Frequently asked questions
The quick of a nail, also known as the hyponychium, is the epithelium located beneath the nail plate at the junction between the free edge and the skin of the fingertip. It forms a seal that protects the nail bed.
The word "quick" is used to refer to this part of the nail because the nail itself is dead, but the flesh underneath is alive. The word "quick" is cognate with the Latin "vīvus", meaning "living".
The quick is the soft cuticle that contains the blood vessels and nerves that run through the nail. It is mainly located above the nail curve and provides nourishment to the nail.
