Topics:
Animal Physiology, Animal Refresher
Match: Organs/Cells and Their Characteristics
Match the column:
| TABLE-I | TABLE-II |
|---|---|
| 1) Spleen | a) Dust cells |
| 2) Basophils | b) Largest lymphoid organ |
| 3) Plasma cell | c) Microglial cells |
| 4) Neutrophils | d) Cart-wheel shape nucleus |
| 5) Liver | e) Kupffer cells |
| 6) Brain | f) First line of defense |
| 7) Lungs | g) Heparin |
- 1-b, 2-g, 3-d, 4-f, 5-e, 6-c, 7-a — Correct Answer
- 1-a, 2-g, 3-d, 4-f, 5-e, 6-c, 7-b
- 1-b, 2-f, 3-d, 4-g, 5-e, 6-c, 7-a
- 1-b, 2-g, 3-e, 4-f, 5-d, 6-c, 7-a
Explanation:
Correct Answer: 1-b, 2-g, 3-d, 4-f, 5-e, 6-c, 7-a
Explanation of Each Match
- 1-b) Spleen → Largest lymphoid organ: The spleen is the largest lymphoid (secondary) organ. It filters blood, destroys old RBCs, and houses lymphocytes.
- 2-g) Basophils → Heparin: Basophils (and mast cells) secrete heparin (a natural anticoagulant) and histamine. They are the primary source of circulating heparin.
- 3-d) Plasma cell → Cart-wheel shape nucleus: Plasma cells are differentiated B-lymphocytes that produce antibodies. They have a distinctive 'cart-wheel' (clock-face) nucleus due to heterochromatin pattern.
- 4-f) Neutrophils → First line of defense: Neutrophils are the most important first-line cellular defense; they are the first WBCs recruited to a site of infection and are highly phagocytic.
- 5-e) Liver → Kupffer cells: Kupffer cells are resident macrophages of the liver, located in the hepatic sinusoids. They phagocytose pathogens, old RBCs, and debris from portal blood.
- 6-c) Brain → Microglial cells: Microglia are the resident macrophages of the brain (CNS). They monitor the brain for pathogens and cellular debris.
- 7-a) Lungs → Dust cells: Dust cells (alveolar macrophages) reside in the alveoli of the lungs. They engulf inhaled particulate matter (dust, pathogens) — hence the name.
