One of the riddles of mammal evolution is explained: the conservation of the number of trunk vertebrae. Dutch and American researchers have shown that this conservation is due to the role of speed in ...

The vertebral column’s most important physiologic function is protecting the spinal cord, which is the main avenue for communication between the brain and the rest of the body. The spinal cord is ...

The lumbar vertebrae are the largest movable bones of the backbone. Their large size and bone strength is necessary because these vertebrae support more weight than the upper two segments of the ...