What structure is labeled as letter B in the image below used to evaluate the cranium?

Question

Quizplus · Accepted Answer

The structure labeled as letter B in the image is the crista galli, which is a bony ridge in the middle of the cribriform plate. The cribriform plate is a small and thin bone in the ethmoid bone of the skull, and it has many small holes that accommodate the olfactory nerves. The crista galli is an important landmark for the evaluation of the cranium, as it helps to distinguish the anterior and posterior cranial fossae.

What Structure Is Labeled as Letter B in the Image