Flashcards in External Orbital Characteristics Deck (21):
1
What is the anatomical term for eyelid?
Palpebra
2
What are the layers of the eyelid?
- skin
- orbicularis oculi muscle
- tarsal plate/tarsus
- palpebral conjunctiva
3
What attaches the tarsus to the walls of the orbit?
Medial and lateral palpebral ligaments
4
What are the names given to the modified sebaceous gland in the tarsus of the eyelid?
Tarsal or Meibomian gland
5
What is the location of the Meibomian gland?
Tarsus of the eyelid
6
What is the function of Meibomian gland?
Produces a thick, hydrophobic substance that prevents tears from overflowing onto the cheeks along the margin of the eyelid
7
Eyelashes represent a modification of what cell extension?
Cilia
8
What is the name of the modified sebaceous gland located at the base of the eyelash?
Ciliary gland
9
What is the name given to the inner mucous membrane of the eyelid?
Palpebral conjunctiva
10
What is the name of the mucous membrane attaching to the eyeball?
Bulbar conjunctiva
11
What is the name given to the blind sac formed between the palpebral and bulbar conjunctiva?
The superior or inferior fornix
12
What is the name given to the angle formed between the superior and inferior eyelids at their medial and lateral margins?
Canthus
13
What are the names given to tissues forming a rounded medial canthus?
Epicanthal fold, palpebronasal fold, Mongolian fold, or epicanthus
14
What is the name given to the union of skin at the eyelid margins?
Medial palpebral commissure or lateral palpebral commissure
15
What is the name given to the slit-like opening formed between the eyelids?
Palpebral fissure
16
What is the name given to the elevation at the medial canthus?
Lacrimal caruncle
17
What is the name given to the highly vascularized conjunctiva at the medial canthus?
Lacrimal lake
18
What is the crescent-shaped appearance of the conjunctiva at the medial canthus called?
Plica semilunaris conjunctiva
19
What is the name given to the elevation at the medial margin of the eyelid?
Superior lacrimal papilla or inferior lacrimal papilla
20
What is the name given the opening at the lacrimal
Lacrimal punctum
21