Multiple choice

Which of the following does not apply to innate immune mechanisms?

  1. All cells of the immune system originates in the marrow cavity

  2. Absence of specificity

  3. Activation by a stimulus

  4. Involvement of multiple cell types

  5. First line of defense of the body
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

All cells of the immune system originates in the bone marrow and they include myeloid (neutrophils, basophils, eosinpophils, macrophages and dendritic cells) and lymphoid (B lymphocyte, T lymphocyte and Natural Killer) cells which differentiate along distinct pathways.

Keep practicing — related questions