Triangular interval: Difference between revisions

Latest revision as of 01:43, 18 February 2025

Musical interval

Anatomical diagram showing the triangular interval in the human body.

Another view of the triangular interval in human anatomy.

The triangular interval is a term used in both music and anatomy, referring to distinct concepts in each field. In music, it describes a specific type of interval, while in anatomy, it refers to a space in the human body.

In Music[edit]

In music theory, a triangular interval is a conceptual interval that can be visualized as forming a triangle with other intervals. This concept is often used in advanced music theory to describe relationships between pitches that are not immediately adjacent but form a triangular relationship with other notes.

Properties[edit]

A triangular interval in music is not a standard interval like a perfect fifth or major third, but rather a theoretical construct used to explore the relationships between non-adjacent notes. It is often used in jazz and contemporary classical music to create complex harmonic structures.

In Anatomy[edit]

In human anatomy, the triangular interval is a space located in the shoulder region. It is bounded by the following structures:

Superiorly by the teres major muscle
Medially by the long head of the triceps brachii muscle
Laterally by the humerus

Contents[edit]

The triangular interval contains important neurovascular structures, including the radial nerve and the profunda brachii artery. These structures pass through the interval to supply the posterior compartment of the arm.

Clinical Significance[edit]

Understanding the anatomy of the triangular interval is crucial for surgeons and clinicians, particularly in procedures involving the shoulder and upper arm. Injury to the structures within this space can lead to significant functional impairment.

Related Pages[edit]

References[edit]

Gray, Henry. Anatomy of the Human Body. 20th ed. Philadelphia: Lea & Febiger, 1918.
Piston, Walter. Harmony. 5th ed. New York: W.W. Norton & Company, 1987.

Triangular interval illustration
Gray's Anatomy - Image 524
Gray's Anatomy - Image 412 with spaces

@@ Line 1: / Line 1: @@
-'''Triangular Interval''' is a term used in the field of [[anatomy]] to describe a specific space in the human body. It is located in the [[upper limb]], specifically in the [[arm]], and is bordered by three different structures: the [[teres major muscle]], the [[long head of the triceps brachii muscle]], and the [[humerus]].
+{{Short description|Musical interval}}
+{{About|the musical interval|other uses|Triangle (disambiguation)}}
-==Etymology==
+[[File:Triangular_interval.PNG|thumb|right|Diagram illustrating a triangular interval.]]
-The term "triangular interval" is derived from the Latin words "triangulum" which means "triangle", and "intervallum" which means "space between". This is a direct reference to the shape and location of this anatomical feature.
+[[File:Gray524.png|thumb|right|Anatomical diagram showing the triangular interval in the human body.]]
+[[File:Gray412-spaces.png|thumb|right|Another view of the triangular interval in human anatomy.]]
-==Anatomy==
+The '''triangular interval''' is a term used in both music and anatomy, referring to distinct concepts in each field. In music, it describes a specific type of interval, while in anatomy, it refers to a space in the human body.
-The triangular interval is a space located in the posterior compartment of the arm. It is bordered by the teres major muscle superiorly, the long head of the triceps brachii muscle medially, and the humerus laterally. The [[radial nerve]] and the [[profunda brachii artery]] pass through this space.
-==Clinical Significance==
+==In Music==
-Due to the passage of the radial nerve and the profunda brachii artery through the triangular interval, any injury or disease affecting this area can potentially lead to nerve damage or vascular compromise. This can result in symptoms such as [[paresthesia]] (tingling or numbness), [[muscle weakness]], and [[ischemia]] (reduced blood flow).
+In music theory, a '''triangular interval''' is a conceptual interval that can be visualized as forming a triangle with other intervals. This concept is often used in advanced music theory to describe relationships between pitches that are not immediately adjacent but form a triangular relationship with other notes.
-==Related Terms==
+===Properties===
-* [[Axilla]]: The underarm or armpit; a region directly superior to the triangular interval.
+A triangular interval in music is not a standard interval like a [[perfect fifth]] or [[major third]], but rather a theoretical construct used to explore the relationships between non-adjacent notes. It is often used in [[jazz]] and [[contemporary classical music]] to create complex harmonic structures.
-* [[Brachial Plexus]]: A network of nerves that send signals from the spine to the shoulder, arm, and hand. The radial nerve, which passes through the triangular interval, is a branch of the brachial plexus.
-* [[Radial Tunnel Syndrome]]: A condition that occurs when the radial nerve is compressed at any point along its course, potentially at the triangular interval.
+==In Anatomy==
+In human anatomy, the '''triangular interval''' is a space located in the shoulder region. It is bounded by the following structures:
+* Superiorly by the [[teres major]] muscle
+* Medially by the [[long head of the triceps brachii]] muscle
+* Laterally by the [[humerus]]
+===Contents===
+The triangular interval contains important neurovascular structures, including the [[radial nerve]] and the [[profunda brachii artery]]. These structures pass through the interval to supply the posterior compartment of the arm.
+===Clinical Significance===
+Understanding the anatomy of the triangular interval is crucial for surgeons and clinicians, particularly in procedures involving the shoulder and upper arm. Injury to the structures within this space can lead to significant functional impairment.
+==Related Pages==
+* [[Musical interval]]
+* [[Shoulder anatomy]]
+* [[Radial nerve]]
+==References==
+* Gray, Henry. ''Anatomy of the Human Body''. 20th ed. Philadelphia: Lea & Febiger, 1918.
+* Piston, Walter. ''Harmony''. 5th ed. New York: W.W. Norton & Company, 1987.
+[[Category:Musical intervals]]
 [[Category:Anatomy]]
-[[Category:Medical Terminology]]
+<gallery>
-{{stub}}
+File:Triangular_interval.PNG|Triangular interval illustration
+File:Gray524.png|Gray's Anatomy - Image 524
+File:Gray412-spaces.png|Gray's Anatomy - Image 412 with spaces
+</gallery>