Accessory structures Flashcards
What is the function of the nail
To provide protection
Where does the nail plate lie?
On the nail bed
How is the nail formed
by specialised epidermis under nail plate – continuous with epidermis of skin
What is the nail bed responsible for ?
for nail growth. As new cells produced, keratinised and die.
Why is the nail bed at the beginning looks white?
Its thicker than the other parts and its the most active growth region
The damaged nail will grow back as long as what?
The matrix is not harmed
What are the three sensory nerve endings?
Touch
Pressure
Temperature
What is Meissner’s corpuscle for
–light pressure
What is Pacinian corpuscle for
deep pressure
What is Free nerve ending for
Pain
What is Merkel’s cells for
touch (stratum basale of epidermis
What do hairs on your head guard against?
bumps
What do hairs on your eyelashes protect
eyes
What do hairs on your body do
Gives insulation
How are hairs formed?
By epithelial cells in the hair bulb
Gets pushed away from growing region-becomes keratinised and dies
