<Tr> <Th> MeSH </Th> <Td> D017006 </Td> </Tr> <Tr> <Td_colspan="2"> Anatomical terminology (edit on Wikidata) </Td> </Tr> <P> In anatomy, the rotator cuff) is a group of muscles and their tendons that act to stabilize the shoulder . Of the seven scapulohumeral muscles, four make up the rotator cuff . The four muscles are the supraspinatus muscle, the infraspinatus muscle, teres minor muscle, and the subscapularis muscle . </P> <Table> <Tr> <Td> Muscle </Td> <Td> Origin on scapula </Td> <Td> Attachment on humerus </Td> <Td> Function </Td> <Td> Innervation </Td> </Tr> <Tr> <Td> Supraspinatus muscle </Td> <Td> supraspinous fossa </Td> <Td> superior facet of the greater tubercle </Td> <Td> abducts the humerus </Td> <Td> Suprascapular nerve (C5) </Td> </Tr> <Tr> <Td> Infraspinatus muscle </Td> <Td> infraspinous fossa </Td> <Td> middle facet of the greater tubercle </Td> <Td> externally rotates the humerus </Td> <Td> Suprascapular nerve (C5 - C6) </Td> </Tr> <Tr> <Td> Teres minor muscle </Td> <Td> middle half of lateral border </Td> <Td> inferior facet of the greater tubercle </Td> <Td> externally rotates the humerus </Td> <Td> Axillary nerve (C5) </Td> </Tr> <Tr> <Td> Subscapularis muscle </Td> <Td> subscapular fossa </Td> <Td> lesser tubercle </Td> <Td> internally rotates the humerus </Td> <Td> Upper and Lower subscapular nerve (C5 - C6) </Td> </Tr> </Table>

Which muscles are part of the rotator cuff