The Orbit. B. External Orbital Characteristics Flashcards

1
Q

What are the layers of the eyelid?

A

skin, orbicularis oculi muscles, tarsal plate/tarsus & palpebral conjunctiva

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2
Q

What are the names given to the modified sebaceous gland in the tarsus of the eyelid?

A

tarsal or Meibomian gland

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3
Q

What is the functions of the Meibomian gland?

A

produces a thick, hydrophobic substance that prevents tears from overflowing onto the cheeks along the margin of the eyelid

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4
Q

What are the names given to the modified sebaceous glands of the palpebra?

A

tarsal gland or Meibomian gland and ciliary gland

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5
Q

What is the name given to the angle formed between the superior and inferior eyelids at their medial and lateral margins?

A

canthus

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6
Q

What is the name given to the elevation at the medial canthus?

A

lacrimal caruncle

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7
Q

What is the crescent-shaped appearance of the conjunctiva at the medial canthus called?

A

plica semilunaris conjunctiva

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8
Q

What is the name given to the opening at the lacrimal papilla?

A

lacrimal punctum

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9
Q

The lacrimal punctum is continuous with what structure?

A

lacrimal canaliculus

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