Rotator Cuff: Difference between revisions
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The rotator cuff muscles include: <br><br> | The rotator cuff muscles include: <br><br> | ||
{| width=" | {| width="700" border="1" cellpadding="5" cellspacing="5" align="center" | ||
|+ Rotator cuff muscles | |+ Rotator cuff muscles | ||
|- | |- | ||
! scope="col" | | ! scope="col" | | ||
! scope="col" | Origen | ! scope="col" | Origen on scapula | ||
! scope="col" | Insertion | ! scope="col" | Insertion on humerus | ||
! scope="col" | Primary function | ! scope="col" | Primary function | ||
|- | |- | ||
| M. supraspinatus | | M. supraspinatus | ||
| supraspinous fossa | | supraspinous fossa | ||
| superior facet of greater | | superior facet of greater tuberosity | ||
| abduction | | abduction | ||
|- | |- | ||
| M. infraspinatus | | M. infraspinatus | ||
| infraspinous fossa | | infraspinous fossa | ||
| middle facet of greater | | middle facet of greater tuberosity | ||
| exorotation | | exorotation | ||
|- | |- | ||
| M. teres minor | | M. teres minor | ||
| lateral border of scapula | | lateral border of scapula | ||
| inferior facet of greater | | inferior facet of greater tuberosity | ||
| exorotation | | exorotation | ||
|- | |- | ||
| M. subscapularis | | M. subscapularis | ||
| | | subscapular fossa | ||
| | | lesser tuberosity or humeral neck | ||
| endorotation | | endorotation | ||
|} | |} | ||
| Line 38: | Line 38: | ||
<br> | <br> | ||
The rotator cuff muscles are used in a variety of upper extremity movements including flexion, abduction, internal rotation and external rotation. | |||
Cranial to the rotator cuff, there is a bursa that covers and protects the muscle tendons as they are in close contact to the surrounding bones. | |||
<br> | <br> | ||
Revision as of 11:34, 29 August 2011
Description[edit | edit source]
Rotator cuff is a common name for the group of 4 muscles and their tendons that provide strength and stability during motion of the shoulder. The muscles arise from the scapula and connect to the head of the humerus, forming a cuff at the glenohumeral joint.
Anatomy[edit | edit source]
The rotator cuff muscles include:
| Origen on scapula | Insertion on humerus | Primary function | |
|---|---|---|---|
| M. supraspinatus | supraspinous fossa | superior facet of greater tuberosity | abduction |
| M. infraspinatus | infraspinous fossa | middle facet of greater tuberosity | exorotation |
| M. teres minor | lateral border of scapula | inferior facet of greater tuberosity | exorotation |
| M. subscapularis | subscapular fossa | lesser tuberosity or humeral neck | endorotation |
The rotator cuff muscles are used in a variety of upper extremity movements including flexion, abduction, internal rotation and external rotation.
Cranial to the rotator cuff, there is a bursa that covers and protects the muscle tendons as they are in close contact to the surrounding bones.
Common injuries to the rotator cuff[edit | edit source]
• primary impingement
• secondary impingement
• degenerative anatomical changes
• tendonitis
• rotator cuff tears
Key Research[edit | edit source]
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Resources
[edit | edit source]
add appropriate resources here
Recent Related Research (from Pubmed)[edit | edit source]
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References[edit | edit source]
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