Multiple choice

The immune cells present in the lymphatic system to protect our body from foreign particles are called ____________.

  1. erythrocytes

  2. leucocytes

  3. thrombocytes

  4. lymphocytes

  5. platelets

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

They are white blood cells present in the vertebrate immune system. The three major types of lymphocytes are T cells, B cells and natural killer (NK) cells. T cells are involved in cell mediated immunity,whereas B cells are primarily responsible for humoral immunity. NK cells help in defending the host from both tumors and virally infected cells.