Fingernails and How to Care for Them

The video discusses the human fingernail, its composition, evolutionary background, and practical features. Fingernails are made of keratin and may have evolved from claws. They protect fingertips, enhance grip, and assist in various tasks. Proper maintenance is crucial to prevent infections and ensure hygiene.

What is the primary component of human fingernails?

• Keratin

• Calcium

• Collagen

• Elastin

Which evolutionary advantage do fingernails provide over claws?

• Better climbing ability

• Stronger defense mechanisms

• Improved hunting skills

• Enhanced fine motor skills

How do fingernails assist in gripping small objects?

• By acting as a lever

• By forming a tweezer-like grip

• By increasing finger strength

• By providing a sticky surface

What is a potential consequence of not maintaining clean nails?

• Increased nail growth

• Stronger nails

• Spread of germs and bacteria

• Improved nail color

What is a simple tool recommended for regular nail maintenance?

• Nail file

• Nail polish

• Nail cutter

• Nail buffer