Histamine is secreted by:

1. Mast cells 2. Fibroblast
3. Histiocytes 4. Plasma cells

Subtopic:  Allergies & Autoimmunity |
 97%
From NCERT
AIPMT - 1998
To view explanation, please take trial in the course.
NEET 2025 - Target Batch
Hints
To view explanation, please take trial in the course.
NEET 2025 - Target Batch

In higher vertebrates, the immune system can distinguish self-cells and non-self. If this property is lost due to genetic abnormality and it attacks self-cells, then it leads to :

 
1. Active immunity 2. Allergic response
3. Graft rejection 4. Auto-immune disease

Subtopic:  Allergies & Autoimmunity |
 89%
From NCERT
To view explanation, please take trial in the course.
NEET 2025 - Target Batch
Hints
To view explanation, please take trial in the course.
NEET 2025 - Target Batch