Term
| what are the axioappendicular muscles |
|
Definition
| connect axial skeleton to appendicular skeleton of upper lumb |
|
|
Term
| what are the posterior axioappendicular muscles |
|
Definition
| trapezius, latissimus dorsi, levator scapulae, rhomboid major and minor |
|
|
Term
| what are the anterior axioappendicular muscles |
|
Definition
| pectoralis major and minor, serratus anterior, and sibclavias |
|
|
Term
| what is the origin of the pectoralis major |
|
Definition
| clavicular head: medial half of clavicle, sternocostal head: sternum and upper 6 costal cartilages and aponeurosis of external oblique muscle |
|
|
Term
| what is the insertion of the pectoralis major |
|
Definition
| lateral lip of bicipital (intertubercular) groove of humerus |
|
|
Term
| what is the innervation of the pectoralis major |
|
Definition
| medial and lateral pectoral nerves |
|
|
Term
| what is the action of the pectoralis major |
|
Definition
| flexion, adduction, and medial rotation of the arm and sholder joint, assists in forced inspiration |
|
|
Term
| where is the pectoralis major located in relation to minor |
|
Definition
|
|
Term
| what is the origin of the pectoralis minor |
|
Definition
|
|
Term
| what is the insertion of the pectoralis minor |
|
Definition
|
|
Term
| what is the innervation of the pectoralis minor |
|
Definition
|
|
Term
| what is the action of the pectoralis minor |
|
Definition
| stabilize scapula by drawing it inferior and anterior against the thoracic wall, assists in forced inspiration |
|
|
Term
| what does the serratus anterior corver |
|
Definition
|
|
Term
| what is the origin of the serratus anterior |
|
Definition
| external surface of ribs 1-8 |
|
|
Term
| what is the insertion of serratus anterior |
|
Definition
| medial and inferior angle of scapula |
|
|
Term
| what is the inervation of serratus anterior |
|
Definition
|
|
Term
| what is the action of serratus anterior |
|
Definition
| holds scaula against thoracic wall and rotates scapula |
|
|
Term
| what can cause winged scapula |
|
Definition
| paralysis of serratus anterior |
|
|
Term
| what occurs in a winged scapula |
|
Definition
| medial scapular border protrudes posterior |
|
|
Term
| where in general is the subclavius located |
|
Definition
| between clavicle and rib 1 |
|
|
Term
| what is the insertion of the subclavias |
|
Definition
| inferior surface of middle third of clavicle |
|
|
Term
| what is the origin of the subclavius |
|
Definition
| 1st rib and 1st costal cartilage |
|
|
Term
| what is the innervation of the subclavias |
|
Definition
|
|
Term
| what is the action of the subclavius |
|
Definition
| depress the clavicle and brace the clavicle against the sternum |
|
|
Term
| where is the clavipectoral fascia located |
|
Definition
| sheet of connective tissue deep to the pectoralis major muscle |
|
|
Term
| what does the clavipectoralis fascia attach to |
|
Definition
| superior to the clavicle, then it splits, and inferior to the sibclavius |
|
|
Term
| what does the clavipectoral fascia enclose |
|
Definition
| subclavius muscle (superior), and pectoralis minor |
|
|
Term
| what is the costocoracoid membrane part of |
|
Definition
|
|
Term
| what does the costocoracoid membrane extend between |
|
Definition
| subclavius and pectoralis minor muscles |
|
|
Term
| what is the name of the clavipectoral fascia between subclavius and pectoralis minor |
|
Definition
|
|
Term
| what is the name of the clavipectoral fascia inferior to pectoralis minor |
|
Definition
| suspensory ligament of axilla |
|
|
Term
| what does the supensory ligament of axilla attach to |
|
Definition
| axillary fascia at base of axilla |
|
|
Term
| what is another name for the intrinsic muscles of the shoulder |
|
Definition
|
|
Term
| what do the scapulohumeral muscles extend between, in feneral |
|
Definition
| shoulder girdle (mostly scapula) to humerus |
|
|
Term
| what are the scapulohumeral muscles involved in |
|
Definition
| movements of the arm at shoulder joint |
|
|
Term
| what are the scapulohumeral muscles |
|
Definition
| deltoid, supraspinatus, infraspinatus, teres minor, teres major, subscapularis |
|
|
Term
| what is the origin of the deltoid |
|
Definition
| lateral third of the clavicle, acromion, spine of the scapula |
|
|
Term
| what is the insertion of the deltoid |
|
Definition
| deltoid tuberosity on shaft of humerus |
|
|
Term
| what is the innervation of the deltoid |
|
Definition
|
|
Term
| what is the action of the deltoid, what fibers are doing these jobs |
|
Definition
| abduction of arm and shoulder joint, anterior fibers flex and medially rotate the arm, the posterior fibers extend lateral and rotate the arm |
|
|
Term
| what is the origin of the supraspinatus |
|
Definition
| supraspinous fossa on the scapula |
|
|
Term
| what is the insertion of the supraspinatus |
|
Definition
| greater tubercle of the humerus (upper facet) |
|
|
Term
| what is the innervation of the supraspinatus |
|
Definition
|
|
Term
| what is the action of the supraspinatus |
|
Definition
| help stabilize shoulder joint, initiate and assist deltoid in abduction of the arm at shoulder joint |
|
|
Term
| what is the origin of the infraspinatus muscle |
|
Definition
| infraspinous fossa of scapula |
|
|
Term
| what is the insertion of the infraspinatus muscle |
|
Definition
| greater tubercle of the humerus (middle facet |
|
|
Term
| what is the innervation of the infraspinatus muscle |
|
Definition
|
|
Term
| what is the action of the infraspinatus muscle |
|
Definition
| stabilize shoulder joint, laterally rotate arm at shoulder joint |
|
|
Term
| what is the origin of the teres minor |
|
Definition
| middle part of lateral border of the scapula |
|
|
Term
| what is the insertion of the teres minor |
|
Definition
| greater tubercle of the humerus lower facet |
|
|
Term
| what is the innervation of the teres minor |
|
Definition
|
|
Term
| what is the action of the teres minor |
|
Definition
| helps stabilize the shoulder joint, laterally rotates the arm at the shoulder joint |
|
|
Term
| what is the origin of the subscapularis |
|
Definition
| subscapular fossa (anterior scapula) |
|
|
Term
| what is the insertion of the subscapularis |
|
Definition
| lesser tubercle of the humerus |
|
|
Term
| what is the innervation of the subscapularis |
|
Definition
| upper and lower subscapular nerves |
|
|
Term
| what is the action of the subscapularis |
|
Definition
| help stabilize the shoulder joint, medial rotator of arm at shoulder joint |
|
|
Term
| what is sacerificed so the shoulder can have a wider range of motion |
|
Definition
|
|
Term
| what is the most commonly dislocated large joint |
|
Definition
|
|
Term
| what is the strength of the rotator cuff dependent on |
|
Definition
| tone of short muscles connecting scapula to upper end of the humerus, the rotator cuff muscles |
|
|
Term
| what are the rotatoe cuff muscles |
|
Definition
| supraspinatus, infraspinatus, teres minor, subscapularis |
|
|
Term
| what aspect of the rotator cuff is weak, what can this cause |
|
Definition
| inferior dislocation of the head of the humerus |
|
|
Term
| what is the origin of the teres major |
|
Definition
| lower part of lateral border of scapula and posterior aspect of the inferior angle of scapula |
|
|
Term
| what is the insertion of teres major |
|
Definition
| medial lip of bicipital (intertuvercular) groove of the humerus |
|
|
Term
| what is the innervation of the teres major |
|
Definition
|
|
Term
| what is the action of the teres major |
|
Definition
| medial rotation, extension, and adduction of the arm at the shoulder joint |
|
|
Term
| what does the quadrangular space communicate between |
|
Definition
| axilla and posterior aspect of shoulder |
|
|
Term
| in the posterior view, what is the superior boundry of the quadrangular space |
|
Definition
|
|
Term
| in the posterior view, what is the inferior boundry of the quadrangular space |
|
Definition
|
|
Term
| in the posterior view, what is the medial boundry of the quadrangular space |
|
Definition
| long head of tricepts brachii |
|
|
Term
| in the posterior view, what is the lateral boundry of the quadrangular space |
|
Definition
|
|
Term
| in the anterior view, what is the superior boundry of the quadrangular space |
|
Definition
|
|
Term
| what passes through the quadrangular space |
|
Definition
| posterior curcumflex humeral vessels and axillary nerve |
|
|
Term
| where does the axillary nerve originate |
|
Definition
| from posterior cord of the brachial plexus in the axilla |
|
|
Term
| what fibers does the axillary nerve have |
|
Definition
| ventral rami of C5 and C6 |
|
|
Term
| describe the location of the axillary nerve in the quadrangular space |
|
Definition
| posterior through space inferior to shoulder joint |
|
|
Term
| what nerve is volurnable to damage during shoulder dislocations |
|
Definition
|
|
Term
| what are the branches of the axillary nerve |
|
Definition
| muscular branches to the deltoid and teres minor muscles, articular branch to the shoulder joint, upper lateral cutaneous nerve of the arm |
|
|
Term
| what does the upper lateral cutaneous nerve of the arm supply |
|
Definition
| skin over superior part of lateral aspect of arm |
|
|
Term
| where is the triangular space in relation to the quadrangular |
|
Definition
|
|
Term
| in the posterior view, what is the superior boundry of the triangular space |
|
Definition
|
|
Term
| in the posterior view, what is the inferior boundry of the triangular space |
|
Definition
|
|
Term
| in the posterior view, what is the lateral boundry of the triangular space |
|
Definition
| long head of triceps brachii |
|
|
Term
| in the anterior view, what is the superior boundry of the triangular space |
|
Definition
|
|
Term
| what runs through the triangular space |
|
Definition
| circumflex scapular vessels |
|
|
