A. Naming
1. The pacemaker of the Heart
2. The fibrous connective tissues that maintains and regulates the opening and closing of AV
valves
3. The largest WBC that are called scavengers of our body.
4. Name the half moon shape valves present in the heart
5. Name one erythropoietic organ present in the body.
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monocytes are called scavengers of our body