Ocular Biology: Outer Tunics of the Eye

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10 Questions

What is the shape of the endothelial cells in the cornea?

Flattened epithelial-like

What is the purpose of the pinocytotic vesicles in the endothelial cells of the cornea?

To regulate corneal hydration

What is the arrangement of endothelial cells in the cornea in young individuals?

Regular hexagonal

What happens to the endothelial cells in the cornea with age?

They become fewer in number with heterogeneous size and shape

What is unique about the cell membranes of endothelial cells in the cornea?

They show interdigitation with zonular occludents

What is the function of the endothelial cells in the cornea in terms of corneal hydration?

To transport materials to maintain corneal hydration

What is the response of adjacent endothelial cells to cell loss in the cornea?

They spread to fill the gaps

What is the thickness of the endothelial cells in the cornea?

5 μm

What is unique about the basement membrane of the endothelial cells in the cornea?

It is absent

What can cause a decrease in corneal endothelial cell density?

Damage to corneal endothelial cells

Learn about the cornea, the outer protective coat of the eye, including its functions, dimensions, and characteristics. Understand the refractive power of the eye's dioptric system and more.

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