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 Note outdated terminology: The "Lacrimal ducts" in Gray's are now called "Lacrimal canals".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 |
TA98 | A15.2.07.065 |
TA2 | 6854 |
FMA | 59365 |
Anatomical terminology |
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.
This article incorporates text in the
public domain from
page 1028 of the 20th edition of
Gray's Anatomy (1918)
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 Note outdated terminology: The "Lacrimal ducts" in Gray's are now called "Lacrimal canals".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 |
TA98 | A15.2.07.065 |
TA2 | 6854 |
FMA | 59365 |
Anatomical terminology |
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.
This article incorporates text in the
public domain from
page 1028 of the 20th edition of
Gray's Anatomy (1918)