Final answer:
Leukocytes move from the blood into infected tissue through diapedesis, chemotaxis, and transendothelial migration.
Step-by-step explanation:
There are three methods by which leukocytes move from the blood into infected tissue:
- Diapedesis: It is the process by which leukocytes squeeze through adjacent cells in a blood vessel wall to enter tissues.
- Chemotaxis: Injured or infected cells and nearby leukocytes emit chemical signals that attract more leukocytes to the site of infection.
- Transendothelial migration: White blood cells extravasate from the bloodstream into infected tissue through this process.