Exploring the Integumentary System: Skin, Hair, and Nails

Which organ is the largest in the human body?

• Heart

• Skin

• Lungs

• Brain

What is the primary function of the skin?

• To produce blood

• To protect internal organs

• To digest food

• To pump oxygen

What is the outermost layer of the skin called?

• Dermis

• Melanin

• Subcutaneous layer

• Epidermis

How many dead skin cells do we lose every minute?

• 10,000 to 20,000

• 40,000 to 50,000

• 20,000 to 30,000

• 30,000 to 40,000

What substance in the epidermis gives skin its color?

• Collagen

• Sebum

• Keratin

• Melanin

Tags

NGSS.MS-LS3-1

Which layer of the skin contains nerve endings and blood vessels?

• Melanin

• Epidermis

• Dermis

• Subcutaneous layer

What is the function of sweat glands?

• To produce melanin

• To protect from UV rays

• To cool down the body

• To produce oil

What is the main component of the subcutaneous layer?

• Collagen

• Fat

• Keratin

• Melanin

What protein substance is hair made of?

• Melanin

• Keratin

• Collagen

• Sebum

What is the primary role of nails?

• To produce sweat

• To protect fingers and toes

• To produce oil

• To regulate temperature