| Question | Answer | Article | |
| Identify this blood cell from a spiny-tailed iguana. | Heterophil granulocyte. Note the numerous small brownish granules and slightly pale basophilic cytoplasm. |
Link to Article | |
| What is its function? | Heterophils serve as phagocytes, act in response to chemotactic stimulus, and release lytic enzymes. |
Link to Article | |
