The Skull - Sphenoid Bone Landmarks

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<p>Mandibular division of trigeminal nerve (B)</p> Signup and view all the answers

<p>Transmits the middle meningeal vessels (D)</p> Signup and view all the answers

An unpaired and complex bone of the skull with an irregular shape, known for resembling a wasp or butterfly.

An opening in the sphenoid bone that transmits the maxillary division of the trigeminal nerve.

A structure in the sphenoid bone allowing passage of the mandibular division of the trigeminal nerve.

Foramen that transmits the middle meningeal vessels and a branch of the trigeminal nerve.

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The sphenoid bone is considered the most complex cranial bone due to its irregular shape and multiple anatomical landmarks.

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The sphenoid bone is an unpaired bone
It's the most complex bone due to its irregular, butterfly or wasp-like shape
The sphenoid bone is composed of four main parts:
- Body
- Lesser wing
- Greater wing
- Pterygoid processes
Key anatomical landmarks include:
- Optic canal
- Superior orbital fissure
- Foramen rotundum
- Foramen ovale
- Foramen spinosum
The optic canal transmits the optic nerve
The superior orbital fissure allows passage of nerves and vessels to/from the orbit
The foramen rotundum transmits the maxillary division of the trigeminal nerve
The foramen ovale transmits the mandibular division of the trigeminal nerve
The foramen spinosum transmits the middle meningeal vessels and the meningeal branch of the mandibular division of the trigeminal nerve
The sphenoid bone connects with many other bones of the cranium