Triangular space: Difference between revisions

Latest revision as of 12:09, 15 February 2025

Anatomical space in the shoulder region

Triangular space[edit]

The triangular space is an anatomical region located in the shoulder area. It is one of the three spaces found in the axillary region, the others being the quadrangular space and the triangular interval. The triangular space is clinically significant as it contains important neurovascular structures.

Boundaries[edit]

The triangular space is defined by the following boundaries:

Superiorly: The inferior border of the teres minor muscle.
Inferiorly: The superior border of the teres major muscle.
Laterally: The long head of the triceps brachii muscle.

Contents[edit]

The triangular space contains the following structures:

The circumflex scapular artery, which is a branch of the subscapular artery.

Clinical significance[edit]

The triangular space is important in surgical procedures involving the shoulder, as it provides a pathway for the circumflex scapular artery. Injury or compression of this artery can lead to compromised blood supply to the scapular region.

Related pages[edit]

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-{{Short description|Anatomical region of the human body}}
+{{Short description|Anatomical space in the shoulder region}}
-{{Use dmy dates|date=October 2023}}
+{{Anatomy}}
-== Triangular space ==
+==Triangular space==
-The '''triangular space''' is an anatomical region of the upper limb, specifically located in the shoulder area. It is one of the several spaces formed by the muscles and bones of the shoulder, and it is important for its role in allowing the passage of neurovascular structures.
+The '''triangular space''' is an anatomical region located in the [[shoulder]] area. It is one of the three spaces found in the [[axillary region]], the others being the [[quadrangular space]] and the [[triangular interval]]. The triangular space is clinically significant as it contains important neurovascular structures.
-== Anatomy ==
+[[File:Axillary_space.png|thumb|right|Diagram of the axillary spaces, including the triangular space.]]
-The triangular space is bordered by the following structures:
-* Superiorly by the [[teres minor]] muscle.
-* Inferiorly by the [[teres major]] muscle.
-* Laterally by the long head of the [[triceps brachii]] muscle.
-The triangular space does not contain any major nerves or arteries, but it allows the passage of the circumflex scapular artery, which is a branch of the subscapular artery.
+==Boundaries==
+The triangular space is defined by the following boundaries:
-== Function ==
+* '''Superiorly''': The inferior border of the [[teres minor]] muscle.
-The primary function of the triangular space is to provide a passageway for the circumflex scapular artery. This artery supplies blood to the scapular region, contributing to the vascular network that supports the shoulder muscles and surrounding tissues.
+* '''Inferiorly''': The superior border of the [[teres major]] muscle.
+* '''Laterally''': The long head of the [[triceps brachii]] muscle.
-== Clinical significance ==
+==Contents==
-The triangular space is of clinical importance because it can be involved in certain shoulder pathologies. For instance, compression or injury to the structures passing through or near this space can lead to vascular compromise or contribute to shoulder pain syndromes.
+The triangular space contains the following structures:
-== Related anatomical spaces ==
+* The [[circumflex scapular artery]], which is a branch of the [[subscapular artery]].
-The triangular space is often discussed in conjunction with other nearby anatomical spaces, such as:
-* The [[quadrangular space]], which transmits the axillary nerve and the posterior circumflex humeral artery.
-* The [[triangular interval]], which allows passage of the radial nerve and the profunda brachii artery.
-== Related pages ==
+==Clinical significance==
-* [[Shoulder anatomy]]
+The triangular space is important in surgical procedures involving the shoulder, as it provides a pathway for the circumflex scapular artery. Injury or compression of this artery can lead to compromised blood supply to the scapular region.
-* [[Axillary space]]
-* [[Teres major]]
-* [[Teres minor]]
-== Gallery ==
+==Related pages==
-<gallery>
+* [[Quadrangular space]]
-File:Axillary_space.png|Diagram showing the axillary spaces, including the triangular space.
+* [[Triangular interval]]
-File:Gray524.png|Illustration of the scapular and circumflex arteries.
+* [[Axillary artery]]
-File:Gray412-spaces.png|Anatomical spaces of the shoulder region.
+* [[Brachial plexus]]
-</gallery>
-== References ==
-* Moore, Keith L.; Dalley, Arthur F.; Agur, Anne M. R. (2013). ''Clinically Oriented Anatomy''. 7th edition. Lippincott Williams & Wilkins.
-* Drake, Richard L.; Vogl, Wayne; Mitchell, Adam W. M. (2014). ''Gray's Anatomy for Students''. 3rd edition. Churchill Livingstone.
 [[Category:Anatomy of the upper limb]]