specialised tissues Flashcards
nails: summarise the functions, structure and growth of nails
1
Q
nail function
A
protection (chemical and physical, as well as protecting tip), touch (manual dexterity fascilitates grasping and tactile sensitivity), communication (socially)
2
Q
nail structure
A
plate of hardened keratin
3
Q
what produces nail plate
A
germinal matrix (pink semi-lunar section)
4
Q
what prevents infection
A
cuticle seal
5
Q
what structure makes a nail strong
A
longitudinal ridging and curvature
6
Q
how is the nail plate formed
A
dividing cells mature, keratinise and move from matrix
7
Q
what is adherent to nail plate
A
nail bed
8
Q
what does the nail bed do
A
produce small amount of keratin
9
Q
what produces nail surface
A
proximal nail bed
