Fibrous tunic Flashcards
What is Descents membrane
Basement membrane of the cornea
What are some characteristics of the corneal epithelium
Great regeneration
Multi-layered
What are some characteristics of corneal stroma
90% of the thickness
Acellular
highly organized
Complex
What are some characteristics of corneal endothelium
Monolayer of hexagonal cells
Minimal regeneration
Pumps fluid out of cornea
Thickens with age
What innervates the cornea
Trigeminal (V)
What are some characteristics of corneal clarity
Avascular
Dehydrated
No pigment
What is a corneal ulcer
a loss of layers of the cornea
What is the worst kind of corneal ulcer
Iris prolapse
What is the least serious form of corneal ulcer
superficial ulcer
What is the limbus
transition zone between cornea and sclera
What is the main purpose of the limbus
source of stem cells for epithelial regeneration
Where is the sclera
Posterior aspect of fibrous coat
What color is the sclera
White with variable amounts of pigment
What are some characteristics of the sclera
dense irregular connective tissue
Blood vessels and nerves run though it
More important in non-mammalians (have cartilage or bone in it)
What does the cornea do
Protection
Refraction
