Teres Minor: Difference between revisions
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'''Original Editor '''- [http://www.physio-pedia.com/User:Wendy_Walker Wendy Walker] | '''Original Editor '''- [http://www.physio-pedia.com/User:Wendy_Walker Wendy Walker] | ||
'''Lead Editors''' - {{Special:Contributors/{{FULLPAGENAME}}}} | '''Lead Editors''' - {{Special:Contributors/{{FULLPAGENAME}}}} | ||
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== Description == | == Description == | ||
Teres Minor is a narrow muscle which lies below infraspinatus, above teres major and triceps brachii, and deep to deltoid. | Teres Minor is a narrow muscle which lies below infraspinatus, above teres major and triceps brachii, and deep to deltoid. | ||
It is one of the four muscles which comprise the [[ | It is one of the four muscles which comprise the [[Rotator Cuff|Rotator Cuff]]. [[Image:Teres minor muscle.png|border|right|250px]] | ||
== Origin == | == Origin == | ||
The upper two-thirds of the lateral border of the scapula. | The upper two-thirds of the lateral border of the scapula. | ||
== Insertion == | == Insertion == | ||
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The upper fibres end in a tendon which inserts into the inferior facet of the greater tubercle of the humerus. | The upper fibres end in a tendon which inserts into the inferior facet of the greater tubercle of the humerus. | ||
The lower fibres insert into the humerus directly below the inferior facet of the greater tubercle of the humerus. | The lower fibres insert into the humerus directly below the inferior facet of the greater tubercle of the humerus. | ||
== Nerve Supply == | == Nerve Supply == | ||
The axillary nerve (roots C5, C6) from the posterior cord of the brachial plexus. | The axillary nerve (roots C5, C6) from the posterior cord of the brachial plexus. | ||
== Blood Supply == | == Blood Supply == | ||
The circumflex scapular artery and the posterior circumflex humeral artery. | The circumflex scapular artery and the posterior circumflex humeral artery. | ||
== Action == | == Action == | ||
Teres Minor, along with [[Infraspinatus|Infraspinatus]], primarily produces external rotation of the shoulder joint. | Teres Minor, along with [[Infraspinatus|Infraspinatus]], primarily produces external rotation of the shoulder joint. | ||
It assists in adduction and extension of the shoulder. | It assists in adduction and extension of the shoulder. | ||
When the humerus is stabilized, abducts the inferior angle of the scapula. | When the humerus is stabilized, abducts the inferior angle of the scapula. | ||
== Function == | == Function == | ||
In concert with the other rotator cuff muscles, Teres Minor is instrumental in providing stability to the shoulder joint, and helps to hold the humeral head in the glenoid cavity of the scapula. | In concert with the other rotator cuff muscles, Teres Minor is instrumental in providing stability to the shoulder joint, and helps to hold the humeral head in the glenoid cavity of the scapula. | ||
== Resources == | == Resources == | ||
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References will automatically be added here, see [[Adding References|adding references tutorial]]. | References will automatically be added here, see [[Adding References|adding references tutorial]]. | ||
<references /> | <references /> | ||
[[Category:Shoulder]] [[Category:Anatomy]] | |||
Revision as of 01:54, 8 December 2014
Original Editor - Wendy Walker
Lead Editors - Kim Jackson, Wendy Walker, George Prudden, WikiSysop, 127.0.0.1, Oyemi Sillo, Naomi O'Reilly, Joao Costa and Aya Alhindi
Description[edit | edit source]
Teres Minor is a narrow muscle which lies below infraspinatus, above teres major and triceps brachii, and deep to deltoid.
It is one of the four muscles which comprise the Rotator Cuff.
Origin[edit | edit source]
The upper two-thirds of the lateral border of the scapula.
Insertion[edit | edit source]
The upper fibres end in a tendon which inserts into the inferior facet of the greater tubercle of the humerus.
The lower fibres insert into the humerus directly below the inferior facet of the greater tubercle of the humerus.
Nerve Supply[edit | edit source]
The axillary nerve (roots C5, C6) from the posterior cord of the brachial plexus.
Blood Supply[edit | edit source]
The circumflex scapular artery and the posterior circumflex humeral artery.
Action[edit | edit source]
Teres Minor, along with Infraspinatus, primarily produces external rotation of the shoulder joint.
It assists in adduction and extension of the shoulder.
When the humerus is stabilized, abducts the inferior angle of the scapula.
Function[edit | edit source]
In concert with the other rotator cuff muscles, Teres Minor is instrumental in providing stability to the shoulder joint, and helps to hold the humeral head in the glenoid cavity of the scapula.
Resources[edit | edit source]
Recent Related Research (from Pubmed)[edit | edit source]
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References[edit | edit source]
References will automatically be added here, see adding references tutorial.
