Kristen cut her hand on a piece of glass. As the blood clots, how do white blood cells prevent bacteria on the glass from infecting her blood?
A. They bring more oxygen to the site for repair.
B. They destroy pathogens that enter the wound.
C. They form the platelet plug.
D. They cause blood vessels to constrict.

Respuesta :

The correct answer is B. They destroy pathogens that enter the wound.

This destruction of any pathogens is called phagocytosis.

Answer:

The correct answer would be B. They destroy pathogens that enter the wound.  

White blood cells (WBC) are the component of the immune system in a body.

Their main function is to protect our body against pathogens and foreign invaders.  

They can be broadly classified into five types namely eosinophils, neutrophils, basophils, monocytes, and lymphocytes.

They achieve this function by:

  • Phagocytosis  
  • Producing antibodies against the foreign invaders.
  • Producing antitoxins to neutralize the toxins produced by the pathogen.