2.5 Healing and Burns

What is the body's response to a shallow cut?

• Epidermal cells divide rapidly to fill the gap.

• The blood vessels break and form a clot.

• A scar forms immediately.

• The skin becomes inflamed and swollen.

Tags

NGSS.MS-LS1-3

Which type of burn affects only the epidermis?

• Second-degree burn

• First-degree burn

• Fourth-degree burn

• Third-degree burn

What is a common characteristic of a second-degree burn?

• It heals with significant scarring.

• No pain is felt.

• It always requires a skin graft.

• It may blister and affect the dermis.

What does the 'rule of nines' help estimate?

• The depth of a wound

• The number of skin layers affected by a burn

• The extent of burn injury on the body

• The time it takes for a burn to heal

How much of the body does the anterior and posterior trunk together account for in the rule of nines?

• 72%

• 36%

• 18%

• 54%