LENS TEST QUESTIONS WITH ANSWERS REVISED AND UPDATED
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Course
LENS
Institution
LENS
LENS TEST QUESTIONS WITH ANSWERS REVISED AND UPDATED
What are zonules made up of? - Answer-- Glycoprotein and fibrils
What do zonules do? - Answer-- Change the curvature of the lens to help in accommodation
What does the lens epithelium do? - Answer-- Secretes the lens capsule, transports n...
LENS TEST QUESTIONS
WITH ANSWERS REVISED
AND UPDATED
What are zonules made up of? - Answer-- Glycoprotein and fibrils
What do zonules do? - Answer-- Change the curvature of the lens to help in
accommodation
What does the lens epithelium do? - Answer-- Secretes the lens capsule, transports
nutrient into lens from the aqueous, and differentiate into lens fibers
What makes up the bulk of the lens? - Answer-- Lens fiber
How many layers is the lens epithelium and where does it continue/end? - Answer--
Single layer of cells that continue throughout anterior portion of lens and end at the
equator
Where are epithelial cells most dense? - Answer-- Centrally
True or false: Epithelial cells divide and has an increase rate of division as they extend
to the equator - Answer-- True
What is the name of the region where there is the greatest rate of division? - Answer--
Germinative zone
How does the lens get thicker throughout life? - Answer-- They concentric layers that
are constantly being formed as the layers differentiate and elongate into fibers. They will
stretch to the anterior pole to the posterior pole.
What is the arrangement of nuclei called as the epithelium differentiate into lens fibers?
- Answer-- The "bow"
What happens when the a epithelium cell becomes a fiber? - Answer-- Loses its
nucleus and organelles
What is the part where the lens fiber on either side of lens meet? - Answer-- Lens suture
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