The main function of the rotator cuff is to stabilize and center the humeral head in the joint socket, the glenoid cavity. In addition, the muscles tighten the joint capsule preventing a pinch during shoulder movements. The rotator cuff always pops up in exam questions! Make sure you're pre...
Three key anatomical features have been identified that contribute to remarkable mobility of the shoulder. The role played by each of these features is reviewed below: What Factors Contribute to Shoulder Stability? The GH joint is stable at rest, in mid ranges, and extremes of motion. A central...
the joint. Four short muscles originate on the scapula and pass around the shoulder where their tendons fuse together to form the rotator cuff. All of these components of the shoulder, along with the muscles of the upper body, work together to manage the stress the shoulder receives as you ...
The subacromial space is the space delimited above by the coraco-acromial arc (anterior-inferior margin of the acromion, coracoacromial ligament, apex and distal third of the posterior surface of the coracoid) and below by the humeral head, by the tendons of the rotator cuff and of the ...
Atuberosityis a distinct prominence or bump on a bone which is usually where a muscle or a ligament attaches. There are two of these on the humerus, thegreater tuberosityand thelesser tuberosity. The greater tuberosity is the site of insertion for three important shoulder (rotator cuff) muscles...
the greater tuberosity. The rotator cuff muscles provide considerable structural support to the glenohumeral joint and keep the humeral head in a firm position by articulating with the scapula within the glenoid cavity. The muscles of the chest also provide structural support to the shoulder joint....
Subscapularis (Rotator Cuff) Function: Adduction and medial rotation of the arm, stabilize glenohumeral joint Origin: Anterior aspect of the scapula Insertion: Lesser tubercle of the humerus Innervation: Subscapular nerves (C5, C6, C7) Other muscles that affect movement at the shoulder joint include...
How to Maintain A Healthy Rotator Cuff and A Happy Shoulder Why Does My Shoulder Hurt So Much? Why does the top of my shoulder hurt ? Is a Subacromial Decompression Useful In Treating Shoulder Pain Howard J. Luks, MDis a leading orthopedic surgeon & sports medicine specialist. An expert in...
Forget “traditional” forms of cardio. These three yoga practices are proven to improve heart health. Kyle Houseworth UpdatedApr 11, 2022 Shoulder-Opening Yoga Poses 3 Rotator Cuff Exercises That Can Help Prevent Injury How to strengthen and stretch an area of the shoulder that can be difficult...
rotator cuff muscles 肩膀旋转肌群sacral dimplesacral 骶sacro-lumbar 腰骶sacrum 骶骨scalenes 斜角肌scapula 肩胛骨scapulae 肩胛骨shin 胫shoulder girdle 肩胛带spinal cord 脊髓sternum 胸骨styloid process 茎突supinate 旋动掌心向上synovial fluid 关节液...