👉 The term "sphenoid ethmoidal" refers to a specific anatomical location in the human skull, which is located between the sphenoid bone and the ethmoid bone. The sphenoid bone is a long bone that sits at the back of the head, while the ethmoid bone is a long bone that sits on top of the sphenoid bone and forms part of the nasal cavity. The sphenoethmoidal region is an important anatomical feature in the human skull
