Objective 4 Flashcards
(21 cards)
Identify the artery which creates a blood supply to the superior oblique and superior rectus muscles and the levator palpebrae muscle.
Supraorbital artery
What is another name for the optic canal?
Optic foramen
Name the housing for the globes, the extraocular muscles, orbital nerves, blood vessels and connective tissue for each eye.
Orbits
What is the first major artery branch leading from the internal carotid artery?
Ophthalmic
Identify the paper thin bone which forms most of the medial orbital wall.
Ethmoid
State the number of ophthalmic veins
Two
What is the supensory ligament which is shaped like a hammock and which helps to support the globe?
Suspensory Ligament of Lockwood
The tissues and organs of this system include bone marrow, spleen, thymus and lymph nodes?
Lymphatic Drainage system
What is the artery that provides the blood supply to the orbicularis muscle of the eyelid?
Zygomatic
Identify the tissue fluid that is collected and carried by small thin channels similar to blood vessels and drains back into the blood stream.
lymph
What lateral and the medial branches of these arteries help supply blood to the extraocular muscles?
Muscular
What is the first and one of the smallest braches of the ophthalmic artery?
Central Retinal
What is the orbital fissure that lies between the lateral wall and the floor of the orbit through which the inferior ophthalmic vein exits the orbit?
Inferior orbital fissure
Which bone forms almost the entire roof of the orbit?
Frontal bone
Identify the type of connection which intercommunicates and is established between the network of arteries, veins and lymphatic vessels.
Anastomosis
What is the socket or capsule of connective tissue in which the eye sits and moves?
Tenon’s Capsule
Identify the number of bones which make up the orbital structure.
Seven
What determines the direction of the flow of blood in the ophthalmic veins?
Amount of pressure within the vien
Provide a two word answer that is another name for Tenon’s capsule
Bulbar fascia
What is one of the largest arteries, it leaves the ophthalmic artery just after it enters the orbit?
Lacrimal
Identify the artery which creates a blood supply to the superior oblique and superior rectus muscles and the levator palpebrae muscle.
Supraorbital artery
