A teaching film about the human skeleton with animated medical illustrations as well as an actual skeleton with commentary. A man, naked to the waist, also demonstrates the relevant anatomy. X-ray ...

How is skeletal evolution studied? Morphological alterations that contribute to human skeletal structure have been extensively studied in paleoanthropology. Aside from standing height, it has been ...

Brain cells are constantly swallowing material from the fluid that surrounds them—signaling molecules, nutrients, even pieces of their own surfaces—in a process known as endocytosis that is essential ...