Quiz 6: Shoulder and Upper Limb Flashcards
What are the articulating bones of the Acromioclavicular (AC) Joint
Acromion of the scapula and clavicle
What is the structure type of the AC joint?
Synovial; plane
What is the function type of the AC joint?
Diarthrotic
What is the axial movement classification of the AC joint?
Multiaxial
What movements are allowed with the AC joint?
Gliding and rotation of the scapula on the clavicle
What is the articulating of the glenohumeral joint?
Scapula and humerus
What is the structure type of the glenohumeral joint?
Synovial; ball and socket
What is the function type of the glenohumeral joint?
Diarthrotic
What is the axial movement classification of the glenohumeral joint?
Multiaxial
What movements are allowed with the glenohumeral joint?
Flexion, circumduction, extension, abduction, adduction, and rotation of the humerus
What does the long thoracic nerve innervate?
Serratus anterior muscle
What do the medial and lateral pectoral nerves innervate?
Pectoralis major/minor
What does the thoracodorsal nerve innervate?
Latissismus dorsi muscle
What does the suprascapular nerve innervate?
Supraspinosous and infraspinatus muscle
What does the upper subscapular nerve innervate?
Supraspinatus
What does the lower subscapular nerve innervate?
Infraspinatus
What does the dorsal (posterior) scapular nerve innervate?
Levitator scapulae, Rhomboid major/minor
What does the musculocutaneous nerve innervate?
Coracobrachialis
Biceps brachii
Brachialis
What does the axillary nerve innervate?
Teres minor
Deltoid muscles
What does the radial nerve innervate?
Triceps brachii
What is the origin of the serratus anterior?
Lateral surface of ribs 1-8
Where does the serratus anterior insert?
Medial border of the scapula
What action does the serratus anterior perform?
Protracts scapula and holds it against the thoracic wall
What is the origin of pectoralis minor?
Anterior surface of ribs 3-5
Where does the pectoralis minor insert?
Coracoid process of the scapula
What action does the pectoralis minor perform?
Pulls scapula forward and downward (depresses)
Where do the levator scapulae originate?
transverse process of C1-C4
Where does the levator scapulae insert?
medial border of the scapula
What action does the levator scapulae perform?
Elevates scapule
Where does rhomboids major and minor originate?
Spinous process fo C7-T5
Where do rhomboid major and minor insert?
Medial border of the scapula
What action do the rhomboid major and minor perform?
retracts and elevates scapula
Where does the trapezius insert?
Lateral third of clavicle
Where does the trapezius originate?
Occipital bone and spinous processes of cervical and thoracic vertebrae
What action does the trapezius perform?
Elevates, rotates, retracts/depresses scapula
