Arkansas State Barber Practice Exam

The term used to indicate the number of individual hair strands per square inch of scalp area is called density.

Volume refers to the amount of space occupied by a three-dimensional object and is not a measure of hair strands. Thickness refers to the diameter of each individual hair strand, not the number of strands. Coverage may refer to the overall distribution of hair on the scalp, but it does not specifically indicate the number of hair strands per square inch. Density is the correct term used to measure the concentration of hair strands on the scalp.