The integumentary system includes our hair, skin, and nails. Why are these all grouped within the same system? It might not be obvious at first, but they all serve a unifying function. The skin, hair, and nails provide a barrier between our internal organs and the external world, protecting our body from pathogens and our organs from injury.
Welcome, Know Yourselfers, to our twelfth and final adventure! It’s been a long ride, but here we stand at the integumentary system -- the perfect one to wrap it all up! As I’m sure you know by now, the integumentary system consists of your skin, hair, and nails, and I’d be happy to shed some light. It’s a big system, which leaves a lot of unanswered questions, but never fear, Dr. Bonafide is here to give you the skin-ny! I said give you the skinny -- did you hair me? Ha ha ha...nailed it!