Anatomy 2017 - Unit 2 Nail Diagram Quiz

Questions and Answers

The white crescent-shaped area at the base of the nail

The part of the nail attached to the skin

The skin surrounding the nail

The part of the nail that extends beyond the fingertip (correct)

The fold of skin that overlaps the sides of the nail

The visible part of the nail matrix at the base of the nail

The cuticle, which is the skin at the base of the nail Signup and view all the answers

It is responsible for nail growth Signup and view all the answers

The part of the nail that is hidden under the cuticle Signup and view all the answers

The skin fold located at the base of the nail Signup and view all the answers

The visible hard part of the nail Signup and view all the answers

The skin that the nail rests on Signup and view all the answers

The skin underneath the free edge of the nail Signup and view all the answers

A bone in the fingers or toes Signup and view all the answers

Study Notes

Free Edge of Nail: The distal part of the nail that extends beyond the fingertip, providing protection to the underlying tissue.
Lateral Nail Fold: The skin fold that surrounds the sides of the nail; it helps secure the nail in place.
Lanula: The visible, white crescent-shaped area at the base of the nail; it is part of the nail matrix where new nail cells grow.
Eponychium (Cuticle): The thin layer of dead skin found at the base of the nail; it seals the area to prevent pathogens from entering.
Nail Matrix: The tissue under the base of the nail where cell division occurs, leading to new nail growth.
Root of Nail: The hidden part of the nail that is embedded in the skin; this area contributes to the growth of the nail.
Proximal Nail Fold: The fold of skin at the base of the nail that encases the root; serves as a protective barrier against infections.
Body of Nail: The main visible part of the nail, composed of keratin, and provides strength and shape.
Nail Bed: The skin beneath the body of the nail, rich in blood vessels and nerves; it supports the nail as it grows.
Hyponychium: The area of thickened skin beneath the free edge of the nail; protects the nail bed and acts as a barrier.
Phalanx: The bones in the fingers or toes to which the nail is attached; they provide structure and support for the digit.