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33 Cards in this Set
- Front
- Back
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Which bone forms the roof of the eye socket ?
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Frontal bone.
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Which bone forms the medial walls of the eye sockets ?
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The ethmoid bone.
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What is the main bone that forms part of the floor of the eye socket ?
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Maxilla.
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Which two bones form the lateral wall of the eye socket ?
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Zygomatic and sphenoid bones.
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Which canal can be found at the apex of the orbit ?
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The optic canal.
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What is the gap separating the maxilla and the sphenoid bone called, which is located inside the orbit.
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Orbital fissures.
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What is the outer layer of the eyeball called and what does it consist of ?
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The fibrous layer consists of:
1. Sclera 2. Cornea |
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What is the middle layer of the eyeball called and what does it consist of ?
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The vascular layer consists of:
1. Choroid 2. Ciliary body 3. Iris |
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What does the inner layer of the eyebal consist of ?
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The retina.
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Name the two anterior chambers of the eye and where they are located.
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1. Anterior chamber- Between the cornea and the lens
2. Posterior- Between the iris/pupil and the lens |
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What is the chamber of the posterior eye called which contains a jelly-like substance ?
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Vitreous body/chamber.
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What is the muscular and vascular part of the choroid that connects it to the iris called ?
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Ciliary body.
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Which structures secrete aqueous humor that fills the anterior segment of the eye ?
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The ciliary processes.
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What is the sphincter of the palpebral fissure called ?
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The orbicularis oculi.
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What is the muscle in the upper eye lid called that levitates it ?
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Levator palpebrae superioris.
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What are the dense bands of connective tissue called that strengthen the eyelid ?
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Tarsi.
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What is the gap between the eye lids called ?
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The palpebral fissure.
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What is the thin mucus membrane that covers the inside of the eyelid ?
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Palpebral conjunctiva.
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Once the palpebral conjunctiva reflects on to the eye, it then becomes continuous with the ?
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Bulbar conjunctiva.
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The reflection of the palpebral conjunctiva onto the eyeball forms deep recesses that are called the .. ?
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1. Superior conjunctival fornix
2. Inferior conjunctival fornix |
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What is the space bound by the palpebral and bulbar conjunctiva called ?
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Conjunctival sac.
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What are the glands associated with the eyelashes called ?
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The ciliary glands.
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What are the dense connective tissues called that connect the eyelid to the medial and lateral margins ?
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The medial and lateral palpebral ligaments.
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What is the dense connective tissue called that connects the tarsi to the margins of the orbit and eventually the periosteum ?
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Orbital septum.
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Name the extra ocular muscles.
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1. Superior rectus muscle
2. Inferior rectus muscle 3. Medial rectus muscle 4. Lateral rectus muscle 5. Superior oblique rectus muscle 6. Inferior oblique rectus muscle 7. Levator palpebrae superioris |
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What is the opposite of intorsion ?
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Extorsion.
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Which nerves innervate the orbit muscles ?
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1. Occulomotor nerve (III)
2. Trochlear nerve (IV) 3. Abducens nerve (VI) |
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Which nerve innervates which occular musle ?
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1. Lateral rectus (VI)
2. Superior oblique (IV) 3. All others (III) [ LR6 SO4 AO3 ] |
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Which glands excrete lacrimal fluid ?
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Lacrimal glands.
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Which duct drains excess lacrimal fluid into the nasal cavity ?
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Nasolacrimal duct.
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Which artery supplies the orbit with blood ?
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Opthalmic branch of internal carotid artery.
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Which veins drain the blood from the orbit ?
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Inferior and superior opthalmic veins and facial veins.
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What is the upper part of the nasolacrimal duct called ?
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The lacrimal sac.
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