Achiver Bio Error??!

[far123]

Advertisement - Members don't see this ad

Select non-specific leukocytes functioning in DIRECT destruction of foreign invaders or infected body cells.
I.Neutrophils
II.Macrophages
III.Basophils
IV.Natural killer cells
the answer is I,II, and IV .. but Natural killer(cytotxic T cells) are Specific, aren't they?

 

[mintz123]

I believe the NKs are part of the innate system, thus non-specific

 

[Mstoothlady2012]

NK & Tc are two different type of cells. NK cells have cytotoxic activity but they are part of innate immune system.

 

[far123]

oops, u r right tnx