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Orbit

Explore the Anatomy of the Orbit

Test your knowledge about the fascinating anatomy of the orbit with this comprehensive quiz! From cranial nerves to vascular structures, challenge yourself and see how well you understand the connections within the orbit.

15 engaging questions
Multiple-choice format
Ideal for students and professionals alike

15 Questions4 MinutesCreated by ExaminingEye47

Orbit communicates with

Middle cranial fossa through inferior orbital fissure

Anterior cranial fossa by superior orbital fissure

Pterygopalatine fossa by anterior ethmoidal foramen

Infratemporal fossa by optic canal

Forehead by supraorbital foramen

Superior orbital fissure:

Lies between orbital surfaces of the greater and lesser wings of sphenoid bone

Lies between orbital surface of greater wing and orbital surface of body of maxilla

Perforates the lesser wing of sphenoid bone

Perforates the greater wing

Lies in the bottom wall of the orbit

Oculomotor nerve supplies:

Superior oblique m

Lateral rectus m

Inferior rectus m

Orbicularis oculi m

Corrugator supercilii muscle

Ophthalmic artery:

Is a branch of ECA

Passes to the orbit through the superior orbital fissure

Gives branches to the lacrimal gland

Reaches the orbit trhough the inferior orbital fissure

Is a branch of the facial artery

On the orbital vault you can NOT find:

Lacrimal fossa

Trochlear fovea

Trochlear spine

Anterior lacrimal crest

Zygomatic process

The ophthalmic veins leave the orbit through:

Optic canal

Inferior orbital fissure

Supraorbital foramen

Infraorbital foramen

Semilunar hiatus

Levator palpebral m is innervated by:

Trochlear nerve

Abducens nerve

Oculomotor nerve

Ophthalmic nerve

Frontal nerve

Lateral rectus m is innervated by:

Trochlear nerve

Abducens nerve

Oculomotor nerve

Ophthalmic nerve

Frontal nerve

Anterior ethmoidal nerve is a branch of:

Nasociliary nerve

Lacrimal nerve

Frontal nerve

Oculomotor nerve

Trochlear nerve

In the lateral wall of the orbit we can find part of the:

Sphenoid bone

Palatine bone

Maxilla

Frontal bone

Temporal bone

The abducens nerve leaves the skull through:

Foramen rotundum

Foramen ovale

Infraorbital foramen

Superior orbital fissure

Inferior orbital fissure

What is a branch of the ophthalmic artery?

Posterior ethmoidal a

Angular a

Infraorbital a

Caroticotympanic a

Anterior superior alveolar a

Which cranial nerve runs through the common tendinous ring?

III

What is the most anterior element of the lateral orbital wall?

Lacrimal bone

Nasal bone

Zygomatic bone

Ethmoid bone

Frontal bone

Which cranial nerve has parasympathetic fibers?

III

None of the above

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