Cell sizes can vary widely among different cell types:
Red Blood Cells (RBCs): Approximately 6-8 micrometers in diameter. Neurons: Can range from 4 micrometers in diameter to 1 meter in length (including axons). Epithelial Cells: Typically 10-30 micrometers in diameter. Muscle Cells: Can be up to 100 micrometers in diameter and several centimeters in length.