Practice Quiz

EMT Practice Test

Category - EMT-Basic

Start a Study Session Sign up for Question of the Day
What is the main function of white blood cells?
  1. Carry oxygen to the tissues of the body
  2. To aid the immune system to fight infection
  3. To aid with blood clotting
  4. To aid with oxygen exchange
Explanation
Answer: B - The main function of white blood cells is to aid the immune system in fighting nfection.
Previous Next
Was this helpful? Upvote!
Login to contribute your own answer or details
Start a Study Session Sign up for Question of the Day

Top questions

Related questions

Most popular on PracticeQuiz