Question

What is the function of the lacrimal apparatus in the mucus membrane?

1) To produce tears
2) To drain tears from the eye
3) To moisten and protect the eye
4) To regulate the flow of tears

Answer 1

The lacrimal apparatus produces tears, drains them from the eye, keeps the eye moist, and protects it by washing away foreign particles and warding off pathogen colonization. The correct option is 1) To produce tears

Step-by-step explanation:

The function of the lacrimal apparatus within the mucous membrane is multifaceted. Primarily, it is responsible for the production of tears which contain substances like defensins, lactoferrin, and lysozyme that help protect the eye by preventing colonization by pathogens.

Additionally, the lacrimal apparatus is involved in the drainage of tears from the eye. The tears are collected by the lacrimal puncta, flow through the lacrimal ducts, and are stored in the lacrimal sac.

Ultimately, the tears pass through the nasolacrimal canal to the nasal cavity, where they help to moisten the mucous membrane and can be removed from the body.

Moreover, tears function to moisten and protect the eye by washing away foreign particles on the conjunctiva, thus contributing to ocular hygiene and comfort. The correct option is 1) To produce tears