Multiple choice

This is an accumulation of blood, serum, and pus at the skins surface:

  1. cicatrix

  2. furuncle

  3. crust

  4. scale

Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

A crust is a collection of dried blood, serum, or pus that forms over a wound or lesion as it heals. It is a secondary lesion.