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Foramina of the Skull
Quiz Questions1. Which area of the skull is formed by endochondral
ossification?
o Viscerocranium
o Neurocranium – Cranial base
o Neurocranium – Calvaria
2. Select whether the following statements are true or false.
o FALSE: The viscerocranium is formed from 8 flat
bones
o TRUE: The clavaria is the superior aspect of the
neurocranium
o FALSE: The lacrimal bone forms part of the
neurocranium
3. Fill in the blanks.
The skull is made up of TWO sets of bones – the
NEUROCRANIUM and the VISCEROCRANIUM.
4. Identify the neurocranium. (ANY AREA ABOVE THE LINE)
Foramina of the Skull
5. Shade in the foramen spinosum.
6. What structures pass through the optic canal?
o Inferior ophthalmic vein
o Optic nerve (CN II)
o Ophtalmic artery
Foramina of the Skull
o Oculomotor nerve (CN III)
o Abducent nerve (CN VI)
7. How many bones contribute to the neurocranium?
o 10
o 15
o 5
o 3
o 8
8. Match the contents with the foramina in which they pass
through.
Foramen caecum Emissary veinForamen rotundum
Maxillary division of trigeminal nerve (CN V2)
Foramen ovale Mandibular division of trigeminal nerve (CN V3)
Foramen magnum Anterior and posterior spinal arteries, vertebral arteris, spinal roots of spinal accessory nerve (CN XI), spinal cord
9. Select whether the following statements are true or false.
o TRUE: The facial nerve (CN VII) passes through the
internal acoustic meatus
Foramina of the Skull
o TRUE: The foramen lacerum is closed by cartilage
o TRUE: The foramen magnum is the largest foramen of
the skull
o FALSE: The mandibular foramen is visible on the
anterior surface of the mandible
o FALSE: There are 6 foramina in the posterior cranial
fossa
10. Which foramen is filled with cartilage?
o Foramen lacerum
o Foramen ovale
o Foramen rotundum
o Foramen spinosum
11. Circle the fossa which contains the foramen lacerum?
12. Identify the viscerocranium. (ANY AREA BELOW THE LINE)
Foramina of the Skull
13. The ophthalmic artery passes through which structure?
o Superior orbital fissure
o Orbital canal
o Inferior orbital fissure
14. Fill in the blanks.
The ANTERIOR CRANIAL FOSSA is formed by the ethmoid,
SPHENOID and FRONTAL bones.
15. Label the skull foramina below.
Foramina of the Skull
16. Which of the foramina listed below are found in the middle
cranial fossa?
o Foramen rotundum
o Foramen magnum
o Internal acoustic meatus
o Foramen ovale
o Inferior orbital fissure
o Mandibular foramen
17. Select which of the following foramen contain an artery?
o Foramen ovale
o Foramen rotundum
o Foramen magnum
o Jugular foramen
o Foramen caecum
o Optic canal
18. Which nerve can be compressed as a result of a base of
skull fracture causing a tear in the internal carotid artery?
Foramina of the Skull
o Occulmotor (CN III)
o Olfactory (CN I)
o Abducent (CN VI)
o Trochlear (CN IV)
