infraspinatus muscle


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in·fra·spi·na·tus mus·cle

(in'fră-spī'nŭ-tŭs mŭs'ĕl)
Origin, infraspinous fossa of scapula; insertion, middle facet of greater tubercle of humerus; action, extends arm and rotates it laterally; nerve supply, suprascapular (from fifth to sixth cervical spinal nerves).
Synonym(s): musculus infraspinatus [TA] .

infraspinatus muscle

Shoulder muscle. Origin: medial two-thirds of infraspinatus fossa of scapula. Insertion: posterior side of greater tubercle of humerus. Nerve: suprascapular (C4-C6). Action: rotates arm laterally.
See also: muscle

infraspinatus muscle

A muscle that runs from the back surface of the shoulder blade (SCAPULA) to the back of the upper part of the upper arm bone (HUMERUS). Its action is to rotate the arm outwards.

infraspinatus

infraspinous.
infraspinatus muscle
see Table 13.3.
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The assessing clinician was responsible for performing the history and physical assessment on all prospective participants and for clinically identifying MTrP within the infraspinatus muscle.
Effect of two consecutive spinal manipulations in a single session on myofascial pain pressure sensitivity: a randomized controlled trial
The scout line intersects the infraspinatus muscle belly.
Rotator cuff fatty infiltration: are coronal images more helpful for characterization than sagittal images?
Suprascapular neuropathy resulting in isolated weakness and atrophy of the infraspinatus muscle could be challenging at its onset and must be differentiated from servical radiculopathy, or bone and joint diseases of the shoulder.
Atrophy of the infraspinatus muscle as a result of atraumatic isolated suprascapular neuropathy: a case report and review of the literature/ Infraspinatus kasinda atrofiye neden olan atravmatik izole supraskapular sinir hasari: olgu sunumu ve literaturun gozden gecirilmesi
The path lies between the infraspinatus muscle and the teres minor muscle, with the point of entry 2 cm inferior and 1 cm medial to the posterior angle of the acromion.
Anterior approach v. posterior approach--ultrasound-guided shoulder arthrogram injection
If stimulation of the infraspinatus muscle was observed, or the patient reported a pain-free 'knocking' sensation in the shoulder, 15 ml of 0.
The shoulder block: a new alternative to interscalene brachial plexus blockade for the control of postoperative shoulder pain
This patient was diagnosed at the chiropractic college health center with post-traumatic myofascial parascapular trigger points, myofascitis, muscular adhesions and weakness in the right shoulder musculature involving principally the infraspinatus muscle.
Comminuted scapular body fractures: a report of three cases managed conservatively in chiropractic settings
2) Investigators assessed 8 physical exam tests--the Neer impingement sign, Hawkins-Kennedy impingement sign, painful arc sign, supraspinatus muscle strength test, Speed's test, cross-body adduction test, drop-arm sign, and infraspinatus muscle strength test--to determine their diagnostic utility.
Q / which history and physical findings are most useful in identifying rotator cuff tears?
STIR Sagittal image showing hyperintensity in supraspinatus and infraspinatus muscles indicating edema, as a sequelae to suprascapular nerve compression.
MRI evaluation in suspected cases of rotator cuff / labral tears on low field MRI system
The supraspinatus and infraspinatus muscles receive innervation from the upper trunk via the suprascapular nerve.
MRI of the brachial plexus: A practical review
1 The suprascapular nerve provides motor inner-vation to the supraspinatus and infraspinatus muscles in addition to branches to the coracohumeral and cora-coacromial ligaments subacromial bursa and the acromioclavicular joint.
OSSIFIED SUPERIOR TRANSVERSE SCAPULAR LIGAMENT: A MORPHOLOGICAL STUDY ON DRIED PAKISTANI SCAPULAE
EMG electrodes were attached unilaterally to the upper and lower trapezius, serratus anterior and infraspinatus muscles, respectively, in accordance with Surface ElectroMyoGraphy for the Non-Invasive Assessment of Muscles (SENIAM) guidelines.
Thoracic posture, shoulder muscle activation patterns and isokinetic strength of semi-professional rugby union players
The muscle groups impacted by this injury include the deltoid and infraspinatus muscles (mainly C5) and the biceps muscle (mainly C6).
The natural history of obstetric brachial plexus injury: ten percent to 30% of these injuries persist for years following birth. Can we reduce the incidence? Can we reduce our risk of litigation?

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