Osteology and the cranial cavity Flashcards by daniel shepard | Brainscape

Q

Name these cranial sutures

A

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Q

What is this structure called?

A

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Q

What vessel runs just deep to the pterion?

A

Anterior branch of the meningeal artery

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Q

What is the scientific name for the skull cap?

A

Calvaria

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Q

What are the structures called where the anterior and posterior fontanelle fused on the skull cap?

A

anterior = Bregma

Posterior = Lambda

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Q

What is the green structure and what is its function?

A

The crista galli

It is an attachment point for the dura mater

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Q

What are the structures in green and what are their functions?

A

The cribriform plate and its foramina

They allow the olfactory nerve (CN 1) to pass through

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Q

What bones compose the anterior cranial fossa?

A

Frontal, ethmoid, sphenoid bones

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Q

What are the structures in green and what are their functions?

A

Sella Turnica
- Surrounds and protects the pituitary

Hypophyseal fossa
- Directly houses the pituitary

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Q

What is the structure in green and what is its function?

A

Optic canal

Allows passage of the optic nerve (CN II)

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Q

What is the structure in green and its function?

A

Superior orbital fissure

Allows passage of the
- Oculomotor nerve (CN III)
- Trochlear nerve (CN IV)
- Ophthalmic branch of trigeminal nerve (CN V1)
- Abducens nerve (CN VI)

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Q

What is the structure in green and its function?

A

Foramen rotundum

Allows passage of the maxillary branch of the trigeminal nerve (CN V2)

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Q

What is the structure in green and its function?

A

Foramen ovale

Allows passage of the mandibular branch of the trigeminal nerve (CN V3)

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Q

What is the structure in green and its function?

A

Foramen spinosum

Allows passage of the middle meningeal artery

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Q

What bones make up the middle cranial fossa?

A

Sphenoid and temporal bones

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Q

What is the structure in green and its function?

A

Internal acoustic meatus

Allows passage of the facial nerve (CN VII) and the vestibulocholear nerve (CN VIII)

Q

What is the structure in green and its function?

A

Jugular foramen

Allows passage of:
- Internal jugular vein
- Glossopharyngeal nerve (CN IX)
- Vagus nerve (CN X)
- Accesory nerve (CN XI)

Q

What is the structure in green and its function?

A

Hypoglossal canal

Allows passage of the hypoglossal nerve (CN XII)

Q

What is the structure in green and its function?

A

Foramen magnum

Allows passage of the brainstem and vertebral arteries