https://wikimd.org/index.php?action=history&feed=atom&title=Subscapularis_muscle 2026-04-26T13:52:28Z Revision history for this page on the wiki MediaWiki 1.44.2 https://wikimd.org/index.php?title=Subscapularis_muscle&diff=5877342&oldid=prev 2024-05-30T07:21:56Z

<p>CSV import</p> <p><b>New page</b></p><div>[[file:MRI._Partial_rupture_of_the_cranial_subscapularis_tendon_at_the_insertion_site..jpg|thumb|MRI. Partial rupture of the cranial subscapularis tendon at the insertion site.]] [[file:Subscapularis_muscle_animation3.gif|thumb|Subscapularis muscle animation3|left]] [[file:Subscapularis_muscle_animation.gif|thumb|Subscapularis muscle animation]] [[file:Thorax_section_9.jpg|thumb|Thorax section 9|left]] [[file:Shoulder_joint.svg|thumb|Shoulder joint]] {{Short description|Muscle on the front of the shoulder blade that helps rotate the arm}}<br /> {{Infobox muscle<br /> | Name = Subscapularis muscle<br /> | Latin = musculus subscapularis<br /> | Image = Subscapularis.png<br /> | Caption = The subscapularis muscle (highlighted in red)<br /> | Origin = [[Subscapular fossa]]<br /> | Insertion = [[Lesser tubercle]] of [[humerus]]<br /> | Blood = [[Subscapular artery]]<br /> | Nerve = [[Upper subscapular nerve]], [[Lower subscapular nerve]]<br /> | Action = [[Medial rotation]] of the [[humerus]]; helps in [[adduction]] of the arm<br /> | Antagonist = [[Infraspinatus muscle]], [[Teres minor muscle]]<br /> }}<br /> <br /> The &#039;&#039;&#039;subscapularis muscle&#039;&#039;&#039; is a large triangular muscle that fills the [[subscapular fossa]] of the [[scapula]]. It is one of the four muscles that make up the [[rotator cuff]] of the shoulder.<br /> <br /> == Anatomy ==<br /> The subscapularis muscle originates from the [[subscapular fossa]], which is the concave surface on the anterior side of the scapula. It inserts into the [[lesser tubercle]] of the [[humerus]] and the front of the [[capsule]] of the [[shoulder joint]].<br /> <br /> === Innervation ===<br /> The subscapularis muscle is innervated by the [[upper subscapular nerve]] and the [[lower subscapular nerve]], both of which are branches of the [[posterior cord]] of the [[brachial plexus]].<br /> <br /> === Blood Supply ===<br /> The blood supply to the subscapularis muscle is primarily provided by the [[subscapular artery]], a branch of the [[axillary artery]].<br /> <br /> == Function ==<br /> The primary function of the subscapularis muscle is to medially rotate the [[humerus]]. It also plays a role in the adduction of the arm and helps stabilize the [[shoulder joint]] by holding the head of the humerus in the [[glenoid cavity]].<br /> <br /> == Clinical Significance ==<br /> Injuries to the subscapularis muscle can result in pain and weakness in the shoulder, particularly during activities that involve internal rotation of the arm. Tears of the subscapularis tendon are less common than other rotator cuff injuries but can occur, especially in athletes and individuals who perform repetitive overhead activities.<br /> <br /> == See Also ==<br /> * [[Rotator cuff]]<br /> * [[Shoulder joint]]<br /> * [[Scapula]]<br /> * [[Humerus]]<br /> * [[Brachial plexus]]<br /> <br /> == Related Pages ==<br /> * [[Infraspinatus muscle]]<br /> * [[Teres minor muscle]]<br /> * [[Supraspinatus muscle]]<br /> * [[Subscapular artery]]<br /> * [[Upper subscapular nerve]]<br /> * [[Lower subscapular nerve]]<br /> <br /> [[Category:Muscles of the upper limb]]<br /> [[Category:Shoulder anatomy]]<br /> [[Category:Rotator cuff]]<br /> <br /> {{muscle-stub}}</div>

Prab