Textbook Question
Which eight bones make up the cranium?
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7. The Skeletal System
The Skull
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Which areas of the skull are formed in part by the ethmoid bone?
A
The occipital bone and the foramen magnum
B
The mandible and the zygomatic arch
C
The nasal cavity and the orbits
D
The temporal bone and the mastoid process
Verified step by step guidance1
Understand the role of the ethmoid bone: The ethmoid bone is a delicate structure located at the roof of the nasal cavity and contributes to the medial wall of the orbits.
Identify the anatomical features associated with the ethmoid bone: It forms part of the nasal cavity, including the superior and middle nasal conchae, and contributes to the structure of the orbits.
Differentiate the ethmoid bone from other skull bones: The occipital bone, mandible, and temporal bone are not directly associated with the ethmoid bone's location or function.
Recognize the correct anatomical regions: The ethmoid bone is involved in forming the nasal cavity and the orbits, which are crucial for respiratory and visual functions.
Conclude with the correct association: The ethmoid bone is integral to the structure of the nasal cavity and the orbits, distinguishing it from other bones mentioned in the options.
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