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{{Infobox Artery |
{{Short description|Artery of the orbit}}
{{Infobox artery
Name = {{PAGENAME}} |
Latin = Arteria lacrimalis |
| Name = Lacrimal artery
| Latin = arteria lacrimalis
GraySubject = 146 |
GrayPage = 569 |
| Image = Gray514.png
⚫
| Caption = The [[ophthalmic artery]] and its branches. (Lacrimal artery visible at center right.)
Image = Gray514.png |
| Image2 = Gray894.png
⚫
Caption = The [[ophthalmic artery]] and its branches. (Lacrimal artery visible at center right.) |
⚫
| Caption2 = The tarsi and their ligaments. Right eye; front view. (Lacrimal artery visible at upper left.)
Image2 = Gray894.png |
⚫
| BranchFrom = [[Ophthalmic artery]]
⚫
Caption2 = The tarsi and their ligaments. Right eye; front view. (Lacrimal artery visible at upper left.) |
⚫
| BranchTo = [[Lateral palpebral arteries]] <br> zygomatic branches <br> recurrent branch
⚫
BranchFrom = [[Ophthalmic artery]] |
⚫
| Vein =
⚫
BranchTo = [[Lateral palpebral arteries]] <BR> zygomatic branches <BR> recurrent branch |
⚫
| Supplies = [[Lacrimal gland]], [[eyelids]], [[conjunctiva]]
⚫
Vein = |
⚫
Supplies = [[Lacrimal gland]], [[eyelids]], [[conjunctiva]] |
MeshName = |
MeshNumber = |
DorlandsPre = a_61 |
DorlandsSuf = 12154804 |
}}
}}
The '''lacrimal artery''' arises close to the [[optic foramen]], and is one of the largest branches derived from the [[ophthalmic artery]]: not infrequently it is given off before the artery enters the [[Orbit (anatomy)|orbit]].


It accompanies the [[lacrimal nerve]] along the upper border of the [[lateral rectus]] and supplies the [[lacrimal gland]].
The '''lacrimal artery''' is an [[artery]] of the [[Orbit (anatomy)|orbit]]. It is a branch of the [[ophthalmic artery]]. It accompanies the [[lacrimal nerve]] along the upper border of the [[lateral rectus muscle]], travelling forward to reach the [[lacrimal gland]]. It supplies the [[lacrimal gland]], [[Extraocular muscles|two rectus muscles of the]] [[eye]], the [[Eyelid|eyelids]], and the [[conjunctiva]].


==Branches==
== Structure ==
Its terminal branches, escaping from the gland, are distributed to the [[eyelids]] and [[conjunctiva]]: of those supplying the eyelids, two are of considerable size and are named the [[lateral palpebral arteries]]; they run medially in the upper and lower lids respectively and anastomose with the [[medial palpebral arteries]], forming an arterial circle in this situation.


=== Origin ===
⚫
The lacrimal artery also give off one or two '''zygomatic branches''', one of which passes through the [[zygomatico-temporal foramen]], to reach the [[temporal fossa]], and anastomoses with the [[deep temporal arteries]]; another appears on the cheek through the [[zygomatico-facial foramen]], and anastomoses with the [[Transverse facial artery|transverse facial]].
The lacrimal artery is normally<ref name=":2" /> a branch of the [[ophthalmic artery]] and represents one of its largest branches.'''<ref name=":023">{{Cite book |last=Gray |first=Henry |url=https://archive.org/details/anatomyofhumanbo1918gray/page/659/mode/2up?view=theater |title=Gray's Anatomy |year=1918 |edition=20th |pages=659}}</ref>'''<ref name=":02">{{Cite book |last=Remington |first=Lee Ann |chapter-url=https://www.sciencedirect.com/science/article/pii/B9781437719260100116 |title=Clinical Anatomy and Physiology of the Visual System |publisher=[[Butterworth-Heinemann]] |year=2012 |isbn=978-1-4377-1926-0 |edition=3rd |pages=202–217 |language=en |chapter=11 - Orbital Blood Supply |doi=10.1016/B978-1-4377-1926-0.10011-6}}</ref> Its origin occurs near the [[optic foramen|optic canal]].'''<ref name=":022">{{Cite book |last=Gray |first=Henry |url=https://archive.org/details/anatomyofhumanbo1918gray/page/659/mode/2up?view=theater |title=Gray's Anatomy |year=1918 |edition=20th |pages=659}}</ref>''' It usually branches off the ophthalmic artery just after the ophthalmic artery's entry into the [[Orbit (anatomy)|orbit]]. It can rarely arise before the ophthalmic artery enters the [[optic canal]].<ref name=":02" />


=== Course and relations ===
⚫
A '''recurrent branch''' passes backward through the lateral part of the [[superior orbital fissure]] to the [[dura mater]], and anastomoses with a branch of the [[middle meningeal artery]].
The lacrimal artery accompanies the [[lacrimal nerve]] along the upper border of the [[lateral rectus muscle]].'''<ref name=":023" />'''<ref>{{Cite book|last=Rea|first=Paul|chapter-url=https://www.sciencedirect.com/science/article/pii/B9780128036334000028|title=Essential Clinically Applied Anatomy of the Peripheral Nervous System in the Head and Neck|publisher=[[Academic Press]]|year=2016|isbn=978-0-12-803633-4|pages=21–130|language=en|chapter=Chapter 2 - Head|doi=10.1016/B978-0-12-803633-4.00002-8}}</ref> It travels anterior-ward to supply the lacrimal gland.<ref name=":02" />


=== Branches and distribution ===
==Variations==
The lacrimal artery supplies the [[lacrimal gland]], the [[Eyelid|eyelids]] and [[conjunctiva]], and the [[superior rectus muscle]] and [[lateral rectus muscle]].<ref name=":1">{{Cite book |last=Remington |first=Lee Ann |chapter-url=https://www.sciencedirect.com/science/article/pii/B9781437719260100116 |title=Clinical Anatomy and Physiology of the Visual System |publisher=[[Butterworth-Heinemann]] |year=2012 |isbn=978-1-4377-1926-0 |edition=3rd |pages=202–217 |language=en |chapter=11 - Orbital Blood Supply |doi=10.1016/B978-1-4377-1926-0.10011-6}}</ref>
The lacrimal artery is sometimes derived from one of the anterior branches of the [[middle meningeal artery]].


'''Recurrent meningeal branch'''
⚫
==Additional images==

⚫
A recurrent meningeal branch may sometimes arise from the lacrimal artery to pass backwards, exiting the orbit through the lateral part of the [[superior orbital fissure]] to reach the [[dura mater]]. It anastomoses with a branch of the [[middle meningeal artery]].<ref name=":02" />

'''Zygomatic branches'''

⚫
The lacrimal artery also gives off one or two zygomatic branches: one passes through the [[zygomatico-temporal foramen]] to reach the [[temporal fossa]], and anastomoses with the [[deep temporal arteries]]; another appears on the cheek through the [[zygomatico-facial foramen]], and anastomoses with the [[transverse facial artery]].'''<ref name=":023" />'''

'''Terminal branches'''

Its terminal branches after the lacrimal gland are distributed to the [[eyelids]] and [[conjunctiva]].<ref name=":1" />

Two terminal branches supplying the eyelids are of considerable size and are termed the [[lateral palpebral arteries]].'''<ref name=":023" />'''

=== Variation ===
The lacrimal artery usually branches from the [[ophthalmic artery]] after it enters the [[Orbit (anatomy)|orbit]],<ref name=":1" /> but may rarely branch off before the ophthalmic artery enters the orbit.<ref name=":1" /> It is sometimes instead derived from one of the anterior branches of the [[middle meningeal artery]].<ref name=":2" />

It shows some variation in course.<ref name=":2">{{Cite journal|last1=Erdogmus|first1=Senem|last2=Govsa|first2=Figen|date=November 2005|title=Importance of the Anatomic Features of the Lacrimal Artery for Orbital Approaches|url=https://journals.lww.com/jcraniofacialsurgery/Abstract/2005/11000/Importance_of_the_Anatomic_Features_of_the.4.aspx|journal=Journal of Craniofacial Surgery|language=en-US|volume=16|issue=6|pages=957–964|doi=10.1097/01.scs.0000179741.68294.1c|pmid=16327539 |s2cid=30332426 |issn=1049-2275}}</ref>

⚫
== Additional images ==
<gallery>
<gallery>
Image:Gray515.png|Bloodvessels of the eyelids, front view.
File:Gray515.png|Bloodvessels of the eyelids, front view.
</gallery>
</gallery>


==External links==
==References==
<references />
* {{eMedicineDictionary|Lacrimal+artery}}


{{Gray's}}
{{circulatory-stub}}
{{Arteries of head and neck}}
{{Arteries of head and neck}}
{{Portal bar|Anatomy}}
{{Authority control}}


[[Category:Arteries of the head and neck]]
[[Category:Arteries of the head and neck]]

[[de:Arteria lacrimalis]]
[[es:Arteria lagrimal]]
[[nds:Arteria lacrimalis]]
[[pt:Artéria lacrimal]]

Latest revision as of 15:03, 12 February 2024

Lacrimal artery
The ophthalmic artery and its branches. (Lacrimal artery visible at center right.)
The tarsi and their ligaments. Right eye; front view. (Lacrimal artery visible at upper left.)
Details
SourceOphthalmic artery
BranchesLateral palpebral arteries
zygomatic branches
recurrent branch
SuppliesLacrimal gland, eyelids, conjunctiva
Identifiers
Latinarteria lacrimalis
TA98A12.2.06.027
TA24476
FMA49927
Anatomical terminology

The lacrimal artery is an artery of the orbit. It is a branch of the ophthalmic artery. It accompanies the lacrimal nerve along the upper border of the lateral rectus muscle, travelling forward to reach the lacrimal gland. It supplies the lacrimal gland, two rectus muscles of the eye, the eyelids, and the conjunctiva.

Structure

[edit]

Origin

[edit]

The lacrimal artery is normally[1] a branch of the ophthalmic artery and represents one of its largest branches.[2][3] Its origin occurs near the optic canal.[4] It usually branches off the ophthalmic artery just after the ophthalmic artery's entry into the orbit. It can rarely arise before the ophthalmic artery enters the optic canal.[3]

Course and relations

[edit]

The lacrimal artery accompanies the lacrimal nerve along the upper border of the lateral rectus muscle.[2][5] It travels anterior-ward to supply the lacrimal gland.[3]

Branches and distribution

[edit]

The lacrimal artery supplies the lacrimal gland, the eyelids and conjunctiva, and the superior rectus muscle and lateral rectus muscle.[6]

Recurrent meningeal branch

A recurrent meningeal branch may sometimes arise from the lacrimal artery to pass backwards, exiting the orbit through the lateral part of the superior orbital fissure to reach the dura mater. It anastomoses with a branch of the middle meningeal artery.[3]

Zygomatic branches

The lacrimal artery also gives off one or two zygomatic branches: one passes through the zygomatico-temporal foramen to reach the temporal fossa, and anastomoses with the deep temporal arteries; another appears on the cheek through the zygomatico-facial foramen, and anastomoses with the transverse facial artery.[2]

Terminal branches

Its terminal branches after the lacrimal gland are distributed to the eyelids and conjunctiva.[6]

Two terminal branches supplying the eyelids are of considerable size and are termed the lateral palpebral arteries.[2]

Variation

[edit]

The lacrimal artery usually branches from the ophthalmic artery after it enters the orbit,[6] but may rarely branch off before the ophthalmic artery enters the orbit.[6] It is sometimes instead derived from one of the anterior branches of the middle meningeal artery.[1]

It shows some variation in course.[1]

Additional images

[edit]
  • Bloodvessels of the eyelids, front view.
    Bloodvessels of the eyelids, front view.

References

[edit]
  1. ^ a b c Erdogmus, Senem; Govsa, Figen (November 2005). "Importance of the Anatomic Features of the Lacrimal Artery for Orbital Approaches". Journal of Craniofacial Surgery. 16 (6): 957–964. doi:10.1097/01.scs.0000179741.68294.1c. ISSN 1049-2275. PMID 16327539. S2CID 30332426.
  2. ^ a b c d Gray, Henry (1918). Gray's Anatomy (20th ed.). p. 659.
  3. ^ a b c d Remington, Lee Ann (2012). "11 - Orbital Blood Supply". Clinical Anatomy and Physiology of the Visual System (3rd ed.). Butterworth-Heinemann. pp. 202–217. doi:10.1016/B978-1-4377-1926-0.10011-6. ISBN 978-1-4377-1926-0.
  4. ^ Gray, Henry (1918). Gray's Anatomy (20th ed.). p. 659.
  5. ^ Rea, Paul (2016). "Chapter 2 - Head". Essential Clinically Applied Anatomy of the Peripheral Nervous System in the Head and Neck. Academic Press. pp. 21–130. doi:10.1016/B978-0-12-803633-4.00002-8. ISBN 978-0-12-803633-4.
  6. ^ a b c d Remington, Lee Ann (2012). "11 - Orbital Blood Supply". Clinical Anatomy and Physiology of the Visual System (3rd ed.). Butterworth-Heinemann. pp. 202–217. doi:10.1016/B978-1-4377-1926-0.10011-6. ISBN 978-1-4377-1926-0.
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