Integumentary System: Nails

Question 1

Define Nails:

Answer 1

Hard plates of keratin on fingers + toes

Covers tips + distal digits

Function: Protection + coordination

Question 2

Define the Nail Plate:

Answer 2

The visible portion of the nail made of keratin

Question 3

Define the Nail Bed:

Answer 3

Area of epidermis, deep to the nail body

Pink color is from blood vessels

Question 4

Define the Nail Root:

Answer 4

Area in the epidermis that produces the nail plate

Question 5

Define the Lunula:

Answer 5

The white crescent in the nail bed

Question 6

Define the Eponychium:

Answer 6

The cutical that extends over the lunula