Eye

Question 1

Function of the lacrimal apparatus

Answer 1

Lacrimal Apparatus

• Function: Secretes tears for lubricating & antibacterial properties

Question 2

The lacrimal apparatus for each eye consists of?

Answer 2

1. Lacrimal glands
2. Lacrimal canals
3. Lacrimal sac
4. Nasolacrimal duct

Question 3

What is the names and function of this structure of the lacrimal appartus?

Answer 3

Lacrimal glands

• Function: Are paried glands that secrete the aqeusous layer of the tear film
  
  • Tears contain mucus antibodies, and lysozyme
• Lacrimal glands are divided into two portions
  
  • A larger orbital portion
  • A smaller palperbreal portion (if the upper eyelid is everted; the palperbal portion can be seen)

Question 4

What is the names and function of this structure of the lacrimal appartus?

Answer 4

Lacrimal Sac

• Function: the upper dilated end of the nasolacrimal duct

Question 5

What is the names and function of this structure of the lacrimal appartus?

Answer 5

Lacrimal Canals

• Function: canals that excess tears drain into
  
  • Tears then travel from the lacrimal canals to the lacrimal sac

Question 6

What is the names and function of this structure of the lacrimal appartus?

Answer 6

Nasolacrimal duct

• Function: carries tears from the lacrimal sac into the nasal cavity
  
  • •Excess tears flow through the nasolacrimal duct which opens in the nose.

•This is the reason the nose starts to run when a person is crying.

Question 7

Another name for eyelids

Answer 7

Palpebrae

Question 8

Function of the palpebrae?

Answer 8

• Control the amount of light and debris entering the eye
• Spread moisture by blinking

Question 9

THe anterior surface of the eye is protected by __________.

Answer 9

The eyelids (palpebrae)