To which type of barriers under innate immunity do the saliva in the mouth and the tears from the eyes belong?
physiological barriers
The correct option is A.
Explanation of the correct option:
Explanation of the incorrect option:
Option B:
Cellular barriers include white blood cells like leukocytes, monocytes, monocytes, natural killer cells, and macrophages that perform phagocytosis.
Option C:
Option D:
Physical barriers consist of mucus, skin, membranes of the digestive tract, respiratory tract, and urogenital tract.
Final answer: The saliva in the mouth and the tears from the eyes belong to the physiological barriers under innate immunity.