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Multiple Choice
The tiny holes in the cribriform plate are called:
A
Foramen magnum
B
Olfactory foramina
C
Jugular foramina
D
Optic canals
Verified step by step guidance
1
Step 1: Begin by identifying the anatomical location of the cribriform plate. It is part of the ethmoid bone, located in the anterior cranial fossa, and forms the roof of the nasal cavity.
Step 2: Understand the function of the cribriform plate. It contains small holes that allow the passage of the olfactory nerve fibers (cranial nerve I) from the nasal cavity to the brain, enabling the sense of smell.
Step 3: Review the term 'olfactory foramina.' These are the tiny holes in the cribriform plate that specifically allow the olfactory nerve fibers to pass through.
Step 4: Compare the other options provided: 'Foramen magnum' is a large opening in the occipital bone for the spinal cord; 'Jugular foramina' are openings for cranial nerves and blood vessels near the base of the skull; 'Optic canals' are passages for the optic nerves in the sphenoid bone.
Step 5: Conclude that the correct term for the tiny holes in the cribriform plate is 'olfactory foramina,' as they are directly associated with the olfactory nerve fibers.