Dissection 24 (Joints of upper limb)

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List two examples of gliding synovial joints: intercarpal, intertarsal
What is a synchrondosis?: Nonsynovial joint between two pieces of cartilage (epiphyseal plate)
What is a Syndesmosis?: Nonsynovial joint between fibrous tissue(sutures of the developing cranial vault)
What is a synostoses?: Joint between bone
What is amphiarthroses?: Joint containing both synovial and nonsynovial character (pubic symphysis)
Describe the synovial membrane: highly vascular connective tissue lining a joint capsule (not lining the artcular cartilage) it is the source of synovial fluid
joints can contain two types of nerve fibers, name them: pain and position sensors
Name an extracapsular ligament: coracoclavicular ligament and the fibular collateral ligament
Name an intracapsular ligament: ACL or PCL
What type of joint is the Sternoclavicular joint? (Syn or non syn) and type of movements: Synovial, multiaxial
What type of joint is the acoracoclavicular joint? (Synovial or nonsynovial): Synovial
What types of movement are possible in the SC joint?: Vertical axis-retraction/protraction
AP axis-elevation/depression
Oblique axis-Medial and Lateral rotation (of inferior angle of scapula)
What are the ligaments of the SC joint?: Anterior and Posterior sternoclavicular ligaments
What injury is common at the AC joint?: Shoulder seperation
What two joints form the shoulder girdle?: SC and AC
What type of joint is the choracoclavicular joint?: Fibrous, syndesmosis
What are the two portions of the coracoclavicular ligament?: conoid and trapezoid
What bones does the coracoclavicular joint span and stablize?: Scapula (at the corocoid) and clavicle
What type of injury does the Coracoclaviculare joint prevent?: Shoulder seperation
What movements does the coracoacromial ligament allow?: None, it prevents superior dislocation of the humeral head
What are the movements of the shoulder joint by axis?: Vertical axis-lateral/medial rotation
AP axis-AB and ADduction
Transverse axis-Flexion/extension
What is the function of the glenoid labrum?: Surround glenoid fossa and deepen and widen it (improve stablity)
What is the extracapsular ligament of the shoulder joint?: Coracohumeral ligament
When does the Coracohumberal ligament provide strength?: When the arm is adducted. It has no ability to stabilize an abducted arm
What are the four muscles of the rotator cuff and their attachments?: Supraspinatus-greater tubercle along spine of scapula

Infraspinatus-greater tubercle to scapula alogn inferior edge of spine

Teres minor-greater tubecle to medial scaula inferior to infra spinatus

Subscapularis-lesser tubercle (on anterior humerus) to medial border of scapla on the anterior side
What are the two bursae of the shoulder joint?: Subacromial bursa and subdeltiod bursa
Where are the bursae of the shoulder joint located?: Subacromial-between the rotator cuff's superior margin and the acromion process
Deltoid bursa-lateral to subacromial bursa
What portion of the shoulder capsule is the most prone to tear?: Inferior
What type of shoulder dislocation is the most common?: anterior
What position results in an anterior dislocation?: Abducted, laterally rotated, and flexed (volley ball spike)
What type of injury does the Coracoclavicular joint prevent?: Shoulder seperation
When does the Coracohumeral ligament provide strength?: When the arm is adducted. It has no ability to stabilize an abducted arm

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Number of cards 32