Uvea - ciliary body Flashcards
1
Q
when viewed from the front of the eye what shape si the ciliary body?
A
- ring shaped structure
2
Q
What’s the width of the ciliary body?
A
- 5.9mm nasal
- 6.7mm temporal
3
Q
How does the structure of the posterior and anterior ciliary differ?
A
- posterior ciliary, fairly flat
- anterior ciliary, numerous folds or processes that extend into the posterior chamber
4
Q
Where is the apex of the ciliary body located?
A
- ora serrata
5
Q
What are the two parts the ciliary body is divided into?
A
- pars plicata
- pars plana
6
Q
What is the pars plicata?
A
- the wider naterior portion
- contains the ciliary processes
7
Q
How many ciliary processes extend into the posterior chambers from the pars plicata?
A
- 70 to 80
8
Q
What are the regions between the ciliary processes called?
A
- valleys of Kuhnt
9
Q
What is the pars plana?
A
- ## flatter region of the ciliary body
10
Q
Where does the pars plana extend from?
A
- posterior of the pars plicata to the ora serrata
11
Q
What is the ora serrata?
A
- the transition between ciliary body and choroid
12
Q
Where do zonule fibers course from?
A
- ciliary body to the lens
13
Q
What is the outermost layer of the ciliary body?
A
- the supraciliaris
14
Q
How is the supraciliaris arranged?
A
- loose connective tissue
- ribbonlike layers containing pigmented melanocytes, fibroblasts and collagen bands
15
Q
what do the supraciliaris bands allow for?
A
- allows ciliary body to slide against the sclera without detaching from or stretching the tissue
