What is the meaning of Cribrosa?

Medical Definition of lamina cribrosa : any of several anatomical structures having the form of a perforated plate: as. a : cribriform plate sense 1. b : the part of the sclera of the eye penetrated by the fibers of the optic nerve. c : a perforated plate that closes the internal auditory canal.

What is the lamina cribrosa of sclera?

The lamina cribrosa sclerae (also known as the lamina cribrosa of the sclera) is a net-like structure covering a small hole in the posterior sclera through which the optic nerve (II) and central retinal artery and vein pass.

What passes through the lamina Cribrosa?

Lamina cribrosa sclerae, a mesh-like structures which allows nerve fibres of the optic nerve to pass through the sclera.

What is bayoneting of blood vessels?

Bayoneting of blood vessels: If blood vessels bend or kink sharply when they pass over the edge of the cup, then this condition is known as bayoneting (Image: see Glaucoma – Neuro-retinal rim assessment). Bayoneting may be a sign of erosion or loss of the NRR.

What is the definition of lamina cribrosa sclerae?

lamina cribrosa of sclera. the portion of the sclera through which the fibers of the optic nerve pass. lam·i·na cri·bro·sa scler·ae. The portion of the sclera through which pass the fibers of the optic nerve.

How does the lamina cribrosa cause glaucoma?

Lamina cribrosa sclerae. This is thought to be one of the causes of nerve damage in glaucoma, as the displacement of the lamina cribrosa causes the pores to deform and pinch the traversing nerve fibers and blood vessels.

What does it mean to have sclera in your eye?

In this Article. Symptoms. Diagnosis. Treatment. The white part of your eye (called the sclera) is a layer of tissue that protects the rest of your eye. When this area is inflamed and hurts, doctors call that condition scleritis. There isn’t always an obvious reason it happens, but most of the time, it’s caused by an autoimmune disorder

Which is the best definition of a cross sectional area?

A roughly bounded part of the space on a surface; a region: a farming area; the New York area. 2. A surface, especially an open, unoccupied piece of ground: a landing area; a playing area. 3. A distinct part or section, as of a building, set aside for a specific function: a storage area in the basement. 4.