Teres major: -Axillary border of scapula near inferior angle -Crest below lesser tubercle nest to latismus dorsi attachment Shoulder extention , abduction and medial rotation
Teres minor -Axillary border of scapula - Greater tuberosity of humerus - shoulder lateral roattion , horizontal abduction
Infraspinatus Infraspianous fossa of scapula - Greater tuberosity of humerus Shoulder lateral rotation, horizontal abduction
Supraspinatus Supraspinous fossa of scapula Greater tubercle of humerus
Upper trapezius Occipital bone, nuchal ligament on cervical spinous processes Outer 3rd of clavicle, acromion process Scapular elevation and upward rotation
Middle trapezius Spinous processes of C7 through T3 Scapular spine Scapular retraction
Lower trapezius Spinous processes of middle and lower thoracic vertebrae Base
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Anterior deltoid Lateral 3rd of clavicle Deltoid tuberosity Shoulder abduction, flexion, medial rotation, and horizontal adduction
Middle deltoid Acromion process Deltpid tuberosity Shoulder abduction
Posterior deltoid Spie of scapula Deltoid tuberosity Shoulder abduction, extension, hyperextension, lateral rotation, horizontal
Pectoralis minor Anterior surface, 3rd through 5th ribs Coracoid process of scapula Scapular depression, protraction, downward rotation, and tilt
Pectoralis major-clavicular region Medial 3rd of clavicle Lateral lip of bicipital groove of humerus Shoulder flexion - first 60 degrees
Pectoralis major- sternal region Sternum, costal cartilages of first 6 ribs Lateral lip of bicipital groove of humerus Shoulder extension - first 60 degrees (from 180-120 degrees
Pectoralis main action: Shoulder adduction, medial rotation, horizontal adduction
Rhomboids Spinous processes of C7 through T5 Vertebral border of scapula between the spine and inferior angle Scapular retraction, elevation and downward rotation
Serratus anterior Lateral surface of upper 8 ribs Vertebral border of the scapula, anterior surface Scapular protraction, upward
Upper chest, sub sternal radiating to neck and jaw, sub sternal radiating down left arm, epigastric, epigastric radiating to neck, jaw, and arms, neck and jaw, left shoulder ad down both arms, and intrascapular
On examination of the right shoulder, there is pain on range of motion. Abduction was 160 degrees. Forward flexion was 165 degrees.
The left shoulder abduct concentrically by the deltoids to provide balance for the body. The cervical spine flex laterally sternocleidomastoid. The lumbar spine of the body flex laterally by concentric contractions of the rectus abdominis. The shoulder girdle adducted by isometric contractions of the middle trapezius, upper trapezius, and rhomboids. The elbow extends and flex by isometric contractions of the triceps brachii and biceps brachii on both sides. The wrist extends concentrically by the extensor carpi radialis longus, extensor carpi radialis brevis, extensor pollicis longus, extensor digiti minimi, extensor indicis, extensor digitorum, and extensor carpi ulnaris. The metacarpophalangeal and interphalangeal are extended by concentrically by extensor pollicis brevis, extensor pollicis longus, extensor digiti minimi, extensor indicis, and extensor digitorum on left and right side of the
The prime movers in the left shoulder that move it back to its neutral position are the anterior deltoid and the bicep brachii. Concentric contractions followed by eccentric contractions of both of these muscles move the shoulder from extension and abduction to it neutral state by flexing and adducting the shoulder. The prime movers in the right shoulder are again the anterior and middle deltoid along with the supraspinatus that contract isometrically to keep the shoulder in horizontal abduction. When the right shoulder is let down after follow through, the prime movers are the triceps and the posterior deltoids which eccentrically contract to extend the shoulder to its neutral position. Therefore the muscles of the shoulder are exceedingly imperative to the action of shoot a
Therefore, numerous spectrums of instability types and associated lesions affecting capsuloabral, ligamentous, and osseous structures can be identified (Stayner et al., 2000). The pathophysiology of an anterior shoulder dislocation involves violent external rotation in abduction levers causing the humerus to be dislodged from the glenoid socket, tearing the shoulder capsule and detaching the labrum from the glenoid (the Bankart lesion) (Farber et al., 2006). Additionally, the posterior part of the humeral head exits the joint, colliding with the anterior rim of the glenoid, producing a bony depression at the back of the humeral head (the Hill Sachs lesion) (Farber et al., 2006). Furthermore, anterior dislocation can occur when people fall with a combination of abduction, extension, and a force directed posteriorly on the arm; this is a common mechanism in the elderly (Stayner et al. 2000). A fracture of the humeral head, neck or greater tuberosity can occur with a dislocation (Stayner et al., 2000). In contrast, a posteriorly dislocated shoulder is less common. It is commonly caused by external forces acting on the shoulder when the shoulder is held in internal rotation and adduction caused by direct trauma experienced during sporting activities (Hegedus et al., 2008). Additionally, it may be result from an epileptic fit,
Romeo and Juliet Act 1, Scene 1 Questions 1.How does Shakespeare create a light and humorous tone in the opening moments of the scene? Shakespeare creates a light and humorous tone in the opening moments by starting it off with a discussion between two servants, Sampson and Gregory that includes sarcasm, insults and jokes that involve take about sexual acts like rape. First, Sampson states, “Gregory, on my word, we’ll not carry coals.” (I, i, 1). Where he means that Gregory we will not be servants we will not deal with their trash.
Women are often thought of as weak, powerless, and obedient, yet literary works written throughout time disprove this stereotype. Shakespeare’s play Hamlet is one such example. Hamlet follows the journey of Prince Hamlet of Denmark as he seeks revenge on his uncle Claudius who marries his mother, Gertrude, and becomes king. Though Hamlet spends most of the play delaying executing his revenge, he succeeds in killing Claudius, and the play concludes with the death of most of the characters, including Queen Gertrude, Hamlet’s love interest, Ophelia, and Hamlet himself. In Hamlet, Shakespeare creates the independent, intelligent characters Ophelia and Gertrude, who present themselves as non-archetypal women, symbolizing how women in Elizabethan times assert strong personal agency in the midst of dubious actions with hidden depths and complex relationships.
It provides strength and resistance to both torsional and bending forces. The proximal humerus articulates with the glenoid cavity of the scapula to form the shoulder joint. The muscles and tendons of the rotator cuff, the acromion, and ligamentous attachments between the coracoid process of the scapula and the acromion serve to both stabilize the gleno-humeral joint and provide a wide range of motion of the shoulder joint. The distal humerus articulates with the radius and ulna at the elbow. The greater tuberosity is located on the superior aspect of the humerus just lateral to the humeral head and it provides attachment for three of the rotator cuff muscles supraspinatus, infraspinatus and teres minor. The lesser tuberosity of the humerus is located on the anterior surface of the humerus and provides attachment for the subscapularis muscle. To classify the fractures, the lesser tuberosity marks the boundary between the proximal humerus and the mid-shaft. Humeral shaft is enveloped in the muscles and soft tissue which provide favorable non-operative healing mechanism in uncomplicated fractures. Muscles originating on the humeral shaft include the brachialis, brachioradialis, and the medial and lateral heads of the triceps brachii. The deltoid, pectoralis major, teres major, latissimus dorsi, and coracobrachialis all insert on the humeral shaft. Different location of the fracture along the humeral shaft will have specific deforming forces acting on the fracture fragments. Fractures near the midpoint of the shaft can have proximal fragment pulled laterally by the deltoid, while the distal fragment pulled medially by the triceps and biceps. Fractures near mid-shaft of the humerus are more likely to shorten than proximal or distal fractures due to the strong pull of the biceps and triceps muscles. The blood supply to the humeral shaft
One of the most common injuries among athletes is found to be in the shoulder region, which entails the shoulder joint and the shoulder girdle. The shoulder joint, is commonly referred to as the glenohumeral joint (ball and socket joint consisting of the ball/end of the humerus bone that sits in the socket of the shoulder). The overall shoulder region also entails the shoulder girdle (the scapula/shoulder blade), and clavicle (collar bone). The shoulder joint is predominantly vulnerable to injury because the large range of movement that it is capable of and the relatively small joint surfaces. In turn, this means that the joint itself is much less stable and therefore requires a number of sturdy muscles, ligaments, and tendons and to maintain the stability.
The biceps brachii arises from the scapula by two heads. The long (lateral head) arising from the supraglenoid tubercle, descends within the capsule of the shoulder joint and lies in the intertubercular groove. The short (medial head) arises from the coracoid process in common with the coracobrachialis. The insertion is into the tuberosity of the radius (posterior part) and the fascia of the forearm (and ultimately the ulna) by means of the bicipital aponeurosis. The biceps and brachialis are the chief flexors of the forearm. The origin of the brachialis embraces the insertion of the deltoid. The coracobrachialis is generally pierced by the musculocutaneous nerve.
The play Hamlet is without a doubt one of the most famous pieces of literature in history. William Shakespeare beautifully crafts the play in a way that captivates his audience’s attention and causes them to reflect upon their own livelihood. Shakespeare includes many different occurring themes throughout the story, which he uses to show the consequences of human desires. One of these reoccurring themes that dictate the outcome of the play is the desire of revenge, which will ultimately lead an individual down a path of destruction. Shakespeare places this desire in the heart of the two different characters and shows how detrimental an outcome may become because of this corrupt desire. This desire for revenge consumes the characters in a way that makes their decision-making unreasonable and brings more chaos to the situation. These character’s decisions not only impact themselves, but also impact those around them in a substantial way. Characters such as Hamlet and Laertes have little concern of those around them as they seek to bring themselves comfort during their time of suffering. One may also observe the suffering revenge inflicts to those who are not even involved in the original situation. The first character inflicted with this desire of revenge is no other than the main character Hamlet himself, who begins to develop an enmity towards those around him.
The genre of Comedy is headlined by a hero who is not of a high rank like a tragedy, but instead is centered around the relatable, real-life human who is far from perfect. In Dead Poets Society, the comic hero is Welton’s new English teacher, Mr. John Keating. Keating’s goal is to teach his students the importance of poetry through the emphasis on self-expression and embracing the Latin saying, Carpe Diem, which means “seize the day.” As Keating fights against the school’s curriculum and standards, many of his students also struggle against forces which keep them from truly being able to internalize what Mr. Keating is teaching them. As the movie contains many serious themes and moments, the clown character of Charlie Dalton, as well as Mr.
But muscles that attach to the rib cage should also be assessed for proper length. The pectoralis major attaches to the superior 6 costal cartilages. If there is limitation in horizontal abduction, one can assume that there will be resultant tightness in the rib mobility where the muscle attaches. If there is latissimus or intercostal tightness, there may be a limitation in shoulder flexion. Length of the anterior neck musculature can be assessed during exhalation. The sternum should be able to descend fully without concomitant posterior cranial
tempus is a quadruped animal as it uses all four limbs on the ground for locomotion. Therefore, its scapula attaches straight onto the axial skeleton and is held in place by muscles; the M. Trapezius, the M. Serratus Ventralis, and the M. Rhomboideus (Dawson T J, Finch E, Freedman L, Hume I D, Renfree M B, Temple-Smith P D, 1989). The M. Trapezius inserts on the scapula spine and the M. Rhomboideus inserts on the scapular cartilage, stabilizing it, while the anterior M. Serratus Ventralis inserts on the medial dorsal side of the scapula (Dawson T J, et al 1989). However, the scapula also articulates with the axial skeleton by the clavicle, which inserts onto the acromion of the scapula by the acromioclavicular ligament (Quillen D M, Wuchner M, Hatch R L 2004), this combined articulation of the sternum, clavicle, and scapular forms the pectoral girdle (University of California n.d). Also, the scapular cartilage is quite dorsal to the articulation point of the thoracic spine and the ribs, as seen in Figure 2., and is quite close to the vertebrae, which results in the lateral orientation of the scapula, the caudal orientation of the humerus, and then the cranial medial orientation of the radius and ulna. Therefore, a much larger range of motion is available for the forelimbs, including adduction and abduction movements of the humerus, which, when combined with the separation of the radius and ulna allows supination and pronation of the forearm (and hind limb), adding a
However, the upper body is still working; the suprinatus which has the shoulders still abducted the origin is the supraspinous fossa of the scapula, insertion is the greater tubercle of humerus.Infraspinous origin is fossa of the scapula and insertion of the tubercle of the humerus. The teres minor the origin is the upper two- thirds border of the scapula and insertion is the greater tubercle of the