Tuesday, June 20, 2017


We just learned about sweat glands.

Another part of the integumentary system is the nails.

Even though nails feel hard like bones, they are actually made of something called keratin.
It's the same thing that hair is made out of too.
There are lots of parts of nails, like the plate, lunula, root, sinus, matrix, bed, hyponychium, and margin.

(from: wikipedia - nail (anatomy))

Kid Facts - Blast from the past: Medulla Oblongata