Lacrimal punctum

Short description: Part of human eye anatomy

Lacrimal punctum

The tarsal glands, etc., seen from the inner surface of the eyelids. (Puncta lacrimalia visible at center left.)

The lacrimal apparatus. Right side. Note outdated terminology: The "Lacrimal ducts" in Gray's are now called "Lacrimal canals".

Details
Identifiers
Latin| puncta lacrimalia
Anatomical terminology

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The lacrimal punctum (pl.: puncta) or lacrimal point, is a minute opening on the summits of the lacrimal papillae, seen on the margins of the eyelids at the lateral extremity of the lacrimal lake. There are two lacrimal puncta in the medial (inside) portion of each eyelid. Normally, the puncta dip into the lacrimal lake.

Together, they function to collect tears produced by the lacrimal glands. The fluid is conveyed through the lacrimal canaliculi to the lacrimal sac, and thence via the nasolacrimal duct to the inferior nasal meatus of the nasal passage.

## Contents

* 1 Additional images
* 2 See also
* 3 References
* 4 External links

## Additional images

* A close up of a lacrimal punctum.

* Lower lacrimal punctum through slit lamp biomicroscope

## See also

* Imperforate lacrimal punctum
* Lacrimal apparatus
* Punctal plug

## References

## External links

* Diagram and discussion at aafp.org

* v
* t
* e

The orbit of the eye

Bones|

* Frontal bone
* Zygomatic bone
* Maxillary bone
* Sphenoid bone
* Ethmoid bone
* Palatine bone
* Lacrimal bone

Muscles|

* Superior rectus muscle
* Inferior rectus muscle
* Lateral rectus muscle
* Medial rectus muscle
* Superior oblique muscle
* Trochlea of superior oblique
* Inferior oblique muscle

Eyelid|

* Levator palpebrae superioris muscle
* Tarsus
* Medial palpebral ligament
* Epicanthic fold
* Meibomian gland
* Ciliary glands
* Eyelash
* Palpebral fissure
* Canthus
* Gland of Zeis

Lacrimal apparatus|

* Krause's glands
* Lacrimal canaliculi
* Lacrimal caruncle
* Lacrimal gland
* Lacrimal lake
* Lacrimal papilla
* Lacrimal punctum
* Lacrimal sac
* Nasolacrimal duct

Other|

* Eyebrow
* Unibrow
* Conjunctiva
* Plica semilunaris
* Orbital septum
* Periorbita
* Suspensory ligament of eyeball
* Tenon's capsule

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