Integumentary SystemHair |
How many hairs are on the human body? |
On the average human body, there are approximately five million hairs.
Development of hair in a newborn: A = 4-month-old fetus; B = 6-month-old fetus; C = newborn. (Sadler, T., Ph.D. Langman’s Medical Embryology. 9th Ed. Image Bank. Baltimore: Lippincott, Williams & Wilkins, 2003.)