Lecture 10- Physiology of vision (mbs 217)

Question 1

What is the purpose of accessory eye structures?

Answer 1

To provide protection, lubrication and support

Question 2

What are the three main accessory eye structures?

Answer 2

1. Palpebrae (eyelids)
2. Superficial epithelium
3. Lacrimal apparatus (production, secretion and removal of tears)

Question 3

what is Palpebrae?

Answer 3

• it is a continuation of skin
• blinking provides lubrication of the eye surface
  -free of dust and debris