Your skull

Notes

Your skull is what protects your brain The ribs are a cage-like bones that protect your heart and lungs You have 33 vertebrates Coccyx is another name for tailbone Skin cells complete their cycle in 27 days The epidermis is the first layer of the skin dermis is the second layer of the skin and subcutaneous layer is the last one The epidermis falls off Dermis is the thick layer of the skin below the epidermis Most body fat is subcatoneous fat