Scapular region flashcards

Description

scapular region flashcards including muscle, osteology, and clinical relevance
Christopher Schneider
Flashcards by Christopher Schneider, updated more than 1 year ago
Christopher Schneider
Created by Christopher Schneider over 9 years ago
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Resource summary

Question Answer
Origin of Serratus anterior lateral parts of ribs 1-8
insertion of serratus anterior anterior surface of medial border of scapula
innervation of serratus anterior long thoracic nerve
Actions of serratus anterior protracts scapula holds scapula against the thoracic wall superior rotation of the scapula
the 6 Scapulohumeral muscles Deltoid Supraspinatus Infraspinatus Teres Minor Teres Major Subscapularis
The 5 scapulothoracic muscles Trapezius levator scapulae rhomboid major rhomboid minor pectoralis minor
The 4 rotator cuff muscles Supraspinatus infraspinatus Teres minor Subscapularis
Origin of supraspinatus supraspinous fossa
insertion of supraspinatus greater tubercle
Innervation of supraspinatus Suprascapular nerve
Actions of Supraspinatus ABDUCTS the arm for the first 15 degrees TONIC CONTRACTION stabilizes the glenohumeral joint
Origin of the Deltoid Lateral third of clavicle acromion process spine of scapula
Insertion of the Deltoid Deltoid tuberosity
Innervation of deltoid axillary nerve
actions of the deltoid Simultaneous: ABDUCT the humerus at the glenohumeral joint after the first 15 degrees, STABILIZES the shoulder Anterior: FLEXION and medial ROTATION of the humerous at the GH joint Posterior: EXTENSION and lateral ROTATION of the humerus at the GH joint
Origin of Teres Major Inferior angle of scapula (posterior surface)
Insertion of Teres major Medial lip of the intertubercular sulcus
Innervation of Teres Major Lower subscapular nerve
Actions of teres major ADDUCTS and medially ROTATES the humerus at the glenohumeral joint
Origin of infraspinatus Infraspinous fossa
Insertion of infraspinatus greater tubercle of humerus
Innervation of infraspinatus suprascapular nerve
Actions of infraspinatus TONIC CONTRACTION stabilizes the glenohumeral joint laterally ROTATES arm
Origin of Teres minor Middle part of lateral border of scapula
Insertion of teres minor greater tubercle of humerus
innervation of teres minor axillary nerve
ACTIONS of teres minor TONIC CONTRACTION stabilizes the glenohumeral joint laterally ROTATES arm
Origin of Subscapularis subscapular fossa
Insertion of subscapularis Lesser tubercle of humerus
Innervation of subscapularis Upper and lower subscapular nerves
Actions of subscapularis TONIC CONTRACTION stabilizes the glenohumeral joint medially ROTATES arm
What goes above (superficial to) the superior transverse scapular ligament and what goes below (deep)? Above: Suprascapular artery Below: Suprascapular nerve
What is the space outlined in green called and what can be found in that space? triangular space; circumflex scapular artery
What is the outlined space called and what can be found there? Triangular interval; deep artery of the arm and Radial nerve
What is the outline space called and what can be found there? quadrangular space; axillary nerve and posterior circumflex humeral artery
What is a cause of axillary nerve injury? compression due to an anteroinferior shoulder dislocation
What are symptoms of axillary nerve injury? Inability to abduct arm to or above horizontal (deltoid compromised) and sensory loss on superolateral aspect of the arm
Name of the plane-type synovial joint that connects the clavicle and the scapula acromioclavicular joint
What is the name of the saddle-type synovial joint that connects the scapula to the thorax? Sternoclavicular joint
What is scapulohumeral rhythm? The coordinated movement of the glenohumeral and scapulothoracic joint to fully elevate the arm
A patient experiences pain when abducting their arm between 50 and 130 degrees. What is the most likely cause? inflammation and calcification of the subacromial bursa (Shoulder impingement syndrome)
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