Lower subscapular nerve
Lower subscapular nerve
The Lower subscapular nerve is a nerve in the human body that supplies the subscapularis muscle and the teres major muscle. It is a branch of the brachial plexus.
Etymology[edit | edit source]
The term "subscapular" comes from Latin "sub" meaning under and "scapula" meaning shoulder blade. The term "nerve" comes from Latin "nervus" meaning sinew or tendon.
Anatomy[edit | edit source]
The lower subscapular nerve arises from the posterior cord of the brachial plexus. It carries fibers from the C5 and C6 roots. It is a motor nerve which supplies the lower part of the subscapularis muscle and the teres major muscle.
Function[edit | edit source]
The lower subscapular nerve controls the contraction of the subscapularis and teres major muscles. These muscles are involved in the internal rotation of the shoulder joint.
Clinical significance[edit | edit source]
Damage to the lower subscapular nerve can result in weakness in the internal rotation of the shoulder joint and difficulty in adducting the arm.
See also[edit | edit source]
References[edit | edit source]
Lower subscapular nerve Resources | ||
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