Physical barrier = .............. and physiological barrier = .............
Physical barrier = .............. and physiological barrier = .............
- A
Skin, saliva in the mouth
- B
Macrophage, acid in the stomach
- C
Respiratory tract, $PMNL$
- D
Urinogenital tract, $PMNL$
Similar Questions
Give differences: $T$-lymphocytes and $B$-lymphocytes
Give differences: $T$-lymphocytes and $B$-lymphocytes
Assertion : Organ transplantation patients are given immunosuppressive drugs.
Reason : Transplanted tissue has antigens which stimulate the specific immune response of the recipient.
Assertion : Organ transplantation patients are given immunosuppressive drugs.
Reason : Transplanted tissue has antigens which stimulate the specific immune response of the recipient.
- [AIIMS 2005]
Antigen is a substance which
Antigen is a substance which
- [AIIMS 2010]
Give scientific reasons : Virus infected cells provide innate immunity to other cells.
Give scientific reasons : Virus infected cells provide innate immunity to other cells.
Lymph glands and nodes help to
Lymph glands and nodes help to