Topics:
Animal Physiology, Animal Refresher
Leukocyte Condition in Tuberculosis
View Complete Answer & Explanation
Question (English)
Which of the following condition occurs in chronic diseases like tuberculosis-
- Neutrophilia
- Eosinophilia
- Lymphocytosis
- Monocytosis ✓ Correct
Explanation:
Correct Answer: Monocytosis
Monocytosis (increased circulating monocytes) occurs in chronic diseases like Tuberculosis. Monocytes transform into macrophages in tissues, which engulf and attempt to destroy persistent intracellular pathogens like Mycobacterium tuberculosis.
Leukocyte Conditions — Complete Summary
- Neutrophilia: Bacterial diseases, Pneumonia, lung diseases (Neutrophils = first line of defense, highly phagocytic)
- Neutropenia / Leucopenia: Viral diseases
- Eosinophilia: Allergy, Anaphylactic shock, Parasitic diseases
- Lymphocytosis: Cancer / Tumor / Neoplasm / Leukaemia
- Monocytosis: Chronic diseases (Tuberculosis)
Monocyte Key Facts
- Monocyte = Largest leukocyte AND largest blood cell
- Monocytes → transform into macrophages in tissues
- Macrophages by location: Liver (Kupffer cells), Lung (Dust cells), Brain (Microglia), Kidney (Mesangial cells), Bone (Osteoclasts), Placenta (Hofbauer cells)
Most Numerous Leukocytes
- Ruminants, pig, poultry: Lymphocytes (60–65%)
- Horse, dog, cat: Neutrophils (60–65%)
📚 About this Topic — Animal Physiology
This multiple choice question is from Animal Physiology, Animal Refresher. It has 4 options with a detailed explanation of the correct answer. Practice more MCQs from Animal Physiology to strengthen your preparation.
