Laceration is a wound that is produced by tearing the soft body tissue. The cut can be jagged, deep or smooth. It may also be near the surface of the skin, or deeper.
Hygiene refers to behaviors that can improve cleanliness and lead to good health, such as frequent hand washing, face washing, and bathing with soap and water.
2,500 is the answer hope this helps.
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Superior/inferior vena cava - right atrium - right ventricle - pulmonary artery - lungs(for oxygenation) - pulmonary vein