Porotic hyperostosis is a condition that affects the skull by creating a porous, sponge-like texture on the outer surface of the bone. It is most often seen near the top and sides of the cranium. This happens when the marrow spaces inside the skull expand, often as the body tries to produce more red blood cells. Over time, the outer layer of bone becomes thinner and pitted.#LearnOnTikTok #TikTokLearningCampaign #EduTok

มีคนรู้ตัวว่าต้องล้างจานตลอดชีพ @Au Awesome น้าอู๋เล่นเกม

Poor family people are flocking to see the old-fashioned train❔😱

Poor Family man was sitting on street showing water magic?😱

You Were Born With 270 Bones! Where Did The Other 64 Go? #ScienceFacts #HumanBody #SPClasses