15 Questions
What is the primary function of the bony orbit?
To house the eyeball and its associated structures
Where is the widest part of the orbit located?
1.5 mm behind the orbital margin
What is contained within the bony orbit?
Eye, optic nerve, ocular muscles, and ocular adnexa
What is the shape of the bony orbit?
Roughly pyramidal
What is the function of the orbital cavity?
To transmit certain vessels and nerves to supply the areas of the orbital aperture
What is the shape of the seven bones from which the orbit is constructed?
Complex with gaps and holes
What lies posterior to the orbital septum and anterior to the levator aponeurosis?
Orbital fats & fascia
Which artery transmits blood and nerve through the supraorbital notch/foramen?
Supraorbital artery
Which cranial nerve transmits visual information from the retina to the brain?
Optic nerve
What is the main function of lacrimal glands?
Secrete the aqueous layer of the tear film
Which muscle in the orbit is responsible for controlling the movements of the eyeball and upper eyelid?
Extraocular muscle (EOM)
Which structure is formed by the frontal bone and is easily palpable, sharp in its lateral two-thirds, and more rounded medially?
Superior orbital margin
What is the main role of plain orbital muscles in the orbit?
Protect the whole eye from injury and trauma
Which pair of cranial nerve provides sensory innervation to the eyeball, including the cornea?
Long and short ciliary nerves
What is the most common quadrilateral with round corners that forms the orbital margin?
Frontal bone
Test your knowledge of ocular anatomy and physiology with this quiz on the orbit's bony structure and function. Explore the boundaries, contents, and characteristics of the orbital cavity in the context of optometry studies.
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