Erythrocytes:These are red blood cells responsible for carrying oxygen from the lungs to all parts of the body and returning carbon dioxide back to the lungs for expulsion.
Hemoglobin:A protein found in erythrocytes that binds oxygen, facilitating its transport throughout the body.
Oxygen saturation: This refers to the percentage of hemoglobin molecules in the bloodstream that are fully saturated with oxygen, indicative of efficient oxygen transport and delivery