Ciliary body
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
