Question

what is the function of the lacrimal apparatus?
o to produce and drain tears
o to move the eyes up and down
o to secrete an oil to prevent tear evaporation
o to move the eyes laterally

Explanation:

The lacrimal apparatus consists of structures like the lacrimal gland (produces tears) and lacrimal ducts (drains tears). Moving eyes (up - down, laterally) is done by extra - ocular muscles. Secretion of oil to prevent tear evaporation is mainly by meibomian glands (not the main function of the lacrimal apparatus as a whole).

Answer:

to produce and drain tears