Nails. Flashcards
The study of the structure and growth of the nails is called
Onychology
The part of the bail that extends beyond the end of the finger and protects the tips of the fingers or toes
Free edge
The visible nail area from the nail root to free edge; made of layers and there are no nerves or blood vessels here
Nail body
OR nail plate
The folds of skin of either side of the nail groove
Nail wall
The half-moon shape at the base of the nail, which appears white due to a reflection of light at the point where the nail matrix and nail bed meet
Lunula
The cuticle that overlaps the lunula at the base of the nail
Eponychium
The loose and pliable overlapping skin around the nail
Cuticle
The active tissue that generates cells, which harden as they move outward from the root of the nail
Nail matrix
This is attached to the matrix at the base of the nail, under the skin and inside the mantle
Nail root
A pocket-like structure that holds the root and matrix
Mantle
The area of the nail on which the nail body rests; nerves and blood vessels are found and supply nourishment
Nail bed
ligaments attach the nail bed to the bone
The tracks on either side of the nail that the nail moves on as it grows
Nail grooves
The skin that touches, overlaps and surrounds the nail
Perionychium
The skin underneath the free edge
Hyponychium
Growth of a new nail plate would take?
4-6 months
Nails grows at an average rate of
1/8th inch per month (adults)
*growth of nails is faster when you are younger because of general cell reproduction is occurring faster; therefore, growth of nails slows as one ages
Nail growth is faster in BLANK and slower in BLANK
Faster - summer
Slower - winter
Which nail grows the slowest? Fastest?
Slowest - thumb
Fastest - middle finger
Toe nails are harder and thinker than finger nails and tend to grow?
Slower
Permanent distortion a of nails occur when:
- A nail is lost for to trauma and, without the protection of the nail plate, the nail bed or matrix is injured
- A nail is lost through disease or infection. The regrown nail, in this case is often distorted in shape
Any disease, disorder or condition of the nail is called
Onychosis
Disease present?
Disorder present?
Condition present?
Can you perform nail service?
Disease - no
Disorder - yes, with care
Condition - yes
The cause of the disease, disorder or condition is called?
Etiology
What are the six signs of infection in the nails and hands?
Pain, swelling, redness, local fever, throbbing and pus
Ring worm of the nail is called?
(Disease)
Cause: fungus, usually nail injury invade by fungus
Prognosis: nail becomes thick and discolors, can develop white scaly patches which yellow streak under nail plate, deformed nail may fall off
Onychomycosis
OR tinea unguium & unguis
Ringworm of the hand
(Disease)
Cause: fungus
Prognosis: appears as rings containing tiny blisters, dark pink/reddish in color, can have dry flakes, can spread to nails, scale, feet or body
Tinea manus
“Athlete’s foot” or ringworm of feet
(Disease)
Cause: fungus, thrives in moist/dark places
Prognosis: inching & peeling of skin, blisters with colorless fluid forming in groups or singly on sores and between toes, leaving sore or itchy skin on feet
Tinea pedis
Inflammation of skin around the nail
(Disease)
Cause: bacterial infection, can come from infected hangnail; prolonged exposure to water create favorable conditions
Paronychia
OR felon
Refers to shedding or falling off of the nail
(Disease)
Cause: disease or injury related
Prognosis: nail will regrow, may occur on only 1-2 nails, nail bed will be sensitive and should be protected while nail grows
Onychoptosis
Inflammation of the nail matrix
(Disease)
Cause: bacterial infection
Prognosis: inflammation of the nail matrix, pus formation, red, swollen and tender; nail may stop growing and plate may detach; may not grow back, if it does it may be deformed
Onychia
Atrophy (wasting away) of the nail
(Disease)
Cause: injury or systemic disease
Prognosis: nails shrink in size and may separate from nail bed; if illness-related, may not improve if matrix is damaged; nail may improve in 3-6 months
Onychatrophia
Refers to a loosening or separation of the nail
(Disease)
Cause: internal disorder, infection or drug treatment; systemic, disease-related
Prognosis: loosening of the nail plate starting at free edge and progressing to the lunula; nail doesn’t come off; stays attached to root area
Onycholysis
Nails that appear bluish in color
(Disorder)
Cause: systemic problems of heart, poor circulation or injury
Prognosis: “blue” color in skin under nails; can be solved if eliminated, common in elderly
Blue nails
Nails that are very thin or soft
(Disorder)
Cause: hereditary or nervous condition
Prognosis: thin nails, almost see-through, transparent
Eggshell nails
Horizontal wavy ridges across the nail
(Disorder)
Cause: injury, Systemic condition, uneven growth
Prognosis: if injury-related it may grow out and disappear; systemic conditions may cause permanent ridges
Corrugations
Nails with a concave shape
(Disorder)
Cause: systemic or long-term illness or nerve disturbance
Prognosis: unusual nail shapes, unlikely to disappear
Kolionychia
OR spoon nails
Vertical lines down the nail plate
(Disorder)
Cause: injury to matrix that causes cells to reproduce unevenly, can be intuition, injury or illness-related
Prognosis: may grow out, may be permanent
Furrows
Represent an increased curvature of the nail
(Disorder)
Cause: systemic
Prognosis: increased thickness and curving of the nail that may occur with age or injury to nail; most often occurs to big toe; physician may remove in necessary
Onychogryposis
OR “claw nails”
Ingrown nails
(Disorder)
Cause: environmental or poor trimming practices; can become infected; may also occur of shoes are too tight or toenails are filed too deeply on sides
Prognosis: if nail grows into edge of the nail groove cutting the skin or becomes deeply embedded and/or infected refer client to physician
Onychocryptosis
A thickening of the nail plate or an abnormal outgrowth of the nail
(Disorder)
Cause: injury or systemic
Prognosis: likely to disappear
Onychauxis
Split cuticles; loose skin partially separated from the cuticle
(Condition)
Cause: cuticle is overly dry and splits; environmentally caused
Prognosis: skin breakers at corners of nails; can be trimmed with cuticle nippers and may heal in 2-3 days; can be reoccurring
Agnails
OR hangnails
Slow dark purplish discoloration under the nail
(Condition)
Cause: trauma, environmental, blood trapped u elder nails or small capillaries hemorrhage
Prognosis: discoloration under nail; normal growth will continue, bruised area will grow out
Bruised nails
OR splinter hemorrhages
White spots appearing in the nail
(Condition)
Cause: injury, heredity; signs of systemic disorders or nutritional deficiency
Prognosis: a small separation from the nail bed; grows out with nail
Leuconychia
The living skin that becomes attached to the nail plate either at the Eponychium (diesel pterygium) or the hyponychium (inverse pterygium)
(Condition)
Cause: severe injury to Eponychium or hyponychium
Prognosis: excess living skin that can remain attached to the nail plate and disrupt normal nail growth
Pterygium
Bitten nails
(Condition)
Cause: nervous habit, stress-related
Prognosis: if biting stops, nail will regrow, may be sensitive to touch
Onychophagy
Split or brittle nails
(Condition)
Cause: injury, improper filing, harsh chemical contact
Prognosis: file with emery board carefully; may be permanent condition
Onychorrhexis
What is the purpose of a nail service?
To improve the appearance of the hands and nails
What are the five basic nail shapes?
Pointed, oval, round, square and squoval
The cosmetic care of the hands and fingernails?
A manicure
The cosmetic care of the feet and toenails?
A pedicure
A manicure with white polish applied on the free edge and pink or peach polish applied to the entire nail is?
French manicure
Three ways to create artificial nails?
Acrylic nails (powder & liquid) Nail wraps (fiberglass, silk, linen & nylon) Gel nails (light-cured)
Mixes with powder to form an acrylic nail; liquid in form
Monomer
Mixes with monomer to form an acrylic nail; powder in form
Polymer
Ensures adhesion of acrylic product to nail
Primer
Plastic extension to nail
Nail tips
Forms an acrylic extension to the natural nail
Nail form
Bonds plastic to natural nail; tacky substance
Adhesive
Removed amount of moisture I the nail when brushed over nail plate; allows better adhesion
Dehydrant
Removes any residue nail enhancement product from the bristles of a brush
Brush cleaner
Holds monomer and polymer separately
Dappen dish
Builds acrylic nail; may be flat, oval or rounded in shape and is made from natural hair such as sable
Acrylic brush
Shortens, files and shapes artificial nails; create grit
Nail file
Smooths nails; rectangular abrasive block
Block buffer
Removes acrylic liquid from container to dappen dish
Eye dropper
Technical name for the nail
Onyx
This is created with a combination of polymer and monomer
Overlay
Woven materials that are applied to the natural nails or nails with tips to add strength
Nail wraps
How many zones is the nail divided into when applying an acrylic overlay?
3 zones
*Zone 3 - thinnest application & closest to cuticle
How many weeks is it required for a fill-in service for artificial nails?
2 weeks
Nail tips can be overlaid with what for strength?
Acrylic
These use a UV light to create reaction to harden the product
Gel nails
Should acetone ever be used to remove polish from acrylic nails?
No, will destroy nails
How much should a nail tip extend from the length of the free edge?
1/3 - 1/2 inch
Nail drills should only be used on what type of nail?
Artificial nails
When should a dehydrating product be applied to the nail?
Before acrylic and after buffer
Can oils and rubber be used to create artificial nails?
No