MRCEM Notes

Lacrimal apparatus: Lacrimal glands

The lacrimal glands

  • Paired exocrine glands
  • Secrete the aqueous layer of the tear film
  • Ducts open into the superior fornix of the conjunctiva

Location
  • Lateral region of each orbit
  • In the lacrimal fossa of the orbit
  • Lacrimal fossa is formed by the frontal bone and in contact with superior part of lacrimal gland. Inferior part contacts levator palpebrae.

Tear film
  • Once produced tear film spreads inferomedially across the conjunctiva
  • Collects at lacus lacrimalis (lacrimal lake - triangular area of conjunctiva adjacent to the medial canthus) before draining into the nasolacrimal system.

Anterior and lateral views of the lacrimal gland
Full-size image