Ciliary body

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During accommodation the ciliary muscle

contracts

What is the internal basement membrane continuous with?

internal limiting membrane retina

What are the characteristics of pars plana?

smooth posteriorly

Which fibres of the ciliary muscle are pigmented?

radial

during accommodation the circumference of the ring formed by ciliary body is:

reduced

In an unaccommodated state the ciliary muscle is:

relaxed

Whats is the unpigmented layer of epithelium (superficial) a continuation of?

retinal nervous layer

The pigmented layer of the ciliary body epithelium is a continuation of what?

retinal pigment layer

What are the characteristics of pars plicata?

ridges anteriorly, ciliary processes

What is the name of the first layer of the ciliary body?

supraciliaris

What is the name of the transition zone between ciliary stroma and the sclera?

supraciliaris

In an unaccommodated state the suspensory fibres are:

tense

What do the longitudinal fibres of the ciliary muscle run parallel to?

sclera

Where are the longitudinal fibres of the ciliary muscle anchored?

scleral spur

What type of muscle is the ciliary muscle?

smooth

What are the functions of ciliary body?

accommodation, aqueous production

What shape is the ciliary body?

annular

Where is the internal basement membrane found?

between epithelium and aqueous/vitreous

Which layers of the ciliary body epithelium are involved in production of aqueous?

both

The ciliary body extends from the scleral spur to:

choroid at ora serrata

Where is the origin of the suspensory ligaments?

ciliary processes

Which part of the ciliary muscle is the iris root continuous with?

circular fibres

What does the supraciliaris consist of?

collagen, fibroblasts, melanocytes

How many layers of cells are in the ciliary body epithelium?

2

How many layers does the ciliary body have?

3

How many parts id the ciliary muscle divided into?

3

How many processes is the pars plicata folded into?

70-80

What shape are the cells in the ciliary body epithelium?

cuboidal

The superficial epithelium of the ciliary body has cells that are _____ in pars plicata and _____ in pars plana

cuboidal, columnar

During accommodation the pull on the lens capsule is *increased/decreased*?

decreased

What does the radial fibres (ciliary muscle) stroma consist of?

dense vascular connective tissue

During accommodation the longitudinal fibres:

draw choroid forward

What is the composition of the ciliary muscle?

flat bundles of smooth fibres

The circular fibres of the ciliary muscle can also be known as:

muscle of muller

What are the names of the two parts that the ciliary body is divided into?

pars plicata, pars plana

Is the deep layer of the ciliary body epithelium pigmented or unpigmented?

pigmented

During accommodation the circular and radial fibres of ciliary muscle act as:

sphincter

Which layer of the ciliary body contains the muscle?

stroma

In an unaccommodated state the lens is *thinner/thicker*

thinner

What shape is the ciliary body in x-section?

triangular

The ciliary body is part of what along with the iris and choroid?

uvea


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