Join thousands of students who trust us to help them ace their exams!Watch the first video
Multiple Choice
Which cranial bone spans the width of the cranial floor?
A
Frontal bone
B
Temporal bone
C
Sphenoid bone
D
Occipital bone
Verified step by step guidance
1
Step 1: Begin by identifying the cranial bones listed in the problem: Frontal bone, Temporal bone, Sphenoid bone, and Occipital bone. Each of these bones has distinct anatomical features and functions.
Step 2: Recall the anatomical location and structure of the cranial bones. The frontal bone forms the forehead and the upper part of the eye sockets. The temporal bones are located on the sides of the skull and house the structures of the inner ear. The occipital bone forms the back and base of the skull.
Step 3: Focus on the sphenoid bone. The sphenoid bone is a complex, butterfly-shaped bone located at the base of the skull. It spans the width of the cranial floor and connects with several other cranial bones, making it a central part of the skull's structure.
Step 4: Understand why the sphenoid bone is the correct answer. Its unique shape and position allow it to span the width of the cranial floor, unlike the other bones listed, which are more localized in their anatomical regions.
Step 5: Conclude that the sphenoid bone is the correct answer based on its anatomical characteristics and its role in spanning the width of the cranial floor.