Bones of the orbit

What is the primary function of the bony orbit?

• To protect the brain from external injuries

• To support the nasal cavity

• To enhance the visual acuity of the eye

• To provide a stable environment for the eyeball and its structures

Which part of the frontal bone forms the roof of the orbit?

• Supraorbital margin

• Frontal process

• Zygomatic process

• Orbital plate

What is the function of the supraorbital foramen?

• To support the lacrimal gland

• To connect the frontal and maxillary bones

• To allow passage of the supraorbital vessels and nerve

• To transmit the optic nerve

Which bone contributes to the inferomedial part of the orbit?

• Sphenoid bone

• Maxilla

• Frontal bone

• Zygomatic bone

What is the infraorbital foramen responsible for?

• Supporting the frontal sinus

• Connecting the maxilla and zygomatic bones

• Providing attachment for extraocular muscles

• Transmitting the infraorbital nerve and blood vessels

Which bone forms the prominence of the cheek?

• Maxilla

• Frontal bone

• Zygomatic bone

• Ethmoid bone

What is the role of the sphenoid bone in the orbit?

• Forms the roof of the orbit

• Contributes to the posterior wall of the orbit

• Supports the nasal cavity

• Houses the lacrimal gland

Which bone is located centrally within the cranium and contributes to the medial wall of the orbit?

• Frontal bone

• Zygomatic bone

• Ethmoid bone

• Maxilla

What is an orbital blowout fracture?

• A fracture of the zygomatic bone

• A fracture of the nasal cavity

• A fracture of the inferior or medial walls of the orbit

• A fracture of the frontal bone

Which diagnostic tool is preferred for evaluating orbital blowout fractures?

• X-ray

• Ultrasound

• CT scan

• MRI