Anterior and posterior chambers

Question 1

What structure divides the cavity anterior to the lens and lens zonules into two?

Answer 1

iris

Question 2

How do the anterior and posterior chambers communicate?

Answer 2

through the pupil

Question 3

What are the boundaries of the posterior chamber of the eye?

Answer 3

approximately triangular:

• base formed by the ciliary processes
• apex is pupil margin
• posterior border is lens and zonular apparatus
• anterior border is posterior surface of the iris

Question 4

What causes the size of the posterior chamber to vary?

Answer 4

accommodation

Question 5

What is the path of aqueous humour through the posterior chamber?

Answer 5

is secreted by the ciliary processes continually, enters posterior chamber before passing through the pupil into the anterior chamber

Question 6

What are the boundaries of the anterior chamber?

Answer 6

• bound in front by the cornea
• bound posteriorly by the anterior iris surface and pupillary portion of the lens
• lateral recess formed by iridocorneal angle occupied by the trabecular meshwork

Question 7

Where is the anterior chamber deepest and what is its depth at this point?

Answer 7

centrally (3mm)

Question 8

What is the approximate volume of aqueous humour in the anterior chamber?

Answer 8

250 μL

Question 9

What is the rate at which aqueous humour is produced?

Answer 9

2-4 μL/minute