integumentary system

What is the top layer of the skin called?

• Dermis
• Hypodermis
• Epidermis
• Subcutaneous

Nails are made out of what?

• All of the Above 
• Terminal 
•  Vellus 
  
• Keratin 

What is the largest organ in the human body?

• Skin
• Hair
• Nails
• All of the Above 

Melanin:

• Helps protect skin from UV radiation
• Is found in almost every human being
• Is responsible for skin color
• All of the above

Tags

NGSS.MS-LS4-4

Which layer of skin is "A" referring to?

• Epidermis
• Dermis
• Hypodermis
• Melanin

This function of the skin allows  the body to retain or lose heat.

• body temperature regulation
• storage
• excretion
• absorption

Tags

NGSS.HS-LS1-3

The function that allows the body to eliminate salt, waste, and excess water and heat is :

• absorption
• excretion
• production

Tags

NGSS.HS-LS1-3

To what layer of skin is letter "B" pointing?

• Epidermis
• Dermis
• Hypodermis
• Melanin

To what layer of skin is letter "C" pointing?

• Epidermis
• Dermis
• Hypodermis
• Melanin 

To what structure is #1 pointing?

• Hair follicle
• Hair shaft
• Hair root
• Epidermis