Upper Limb Flashcards
Muscles attached to greater tubercle of humerus A. Supraspinatus B. Teres minor C. Teres major D. Infraspinatus E. Pectoralis major
Answer- A. Supraspinatus, B. Teres minor D. Infraspinatus
Attachments on greater tubercle of humerus- Mnemonic -SIT minor
Contents of bicipital groove is/ are-
A. Synovial membrane of shoulder joint
B. Ascending branch of anterior circumflex artery
C. Ascending branch of posterior circumflex artery
D. Radial artery
E. Coracobrachialis muscle
Answer - A. Synovial membrane of shoulder joint and B. Ascending branch of anterior circumflex artery
Contents of bicipital (intertubercular) groove -
A. Anterior circumflex humeral artery
B. Biceps long head with synovial sheath
Muscles attached to the coracoid process A. Coracobrachialis B. Short head of biceps C. Long head of biceps D. Pectoralis major E. Pectoralis minor
Answer- A. Coracobrachialis, B. Short head of biceps, E. Pectoralis minor
Attachments on coracoid process of scapula include A. Coracobrachialis B. Short head of biceps C. Pectoralis minor D. Coracoacromial ligament E. Coracohumeral ligament F. Coracoclavicular ligament
The weight of the upper limb is transmitted to axial skeleton by A. Coracoclavicular ligament B. Coracoacromial ligament C. Costoclavicular ligament D. Coracohumeral ligament
Answer- A. Coracoclavicular ligament
Weight of the upper limb is transmitted to axial skeleton through
A. Acromioclavicular joints - ligament of A-C joint include coracoclavicular ligament and acromioclavicular ligament
B. Sterno-clavicular joint - it includes the anterior and posterior sternoclavicular ligament, interclavicular ligament and costoclavicular ligament.
Rotator cuff is/are formed by all except A. Supraspinatus B. Infraspinatus C. Teres minor D. Teres major E. Subscapularis
Answer- D. Teres major
Mnemonic- Minority SISter rotates
Rotator cuff is formed by the A. Teres minor B. Supraspinatus C. Infraspinatus D. Subscapularis
Note teres major is not a part of rotator cuff.
All of the following structures maybe compressed during flexion and abduction of shoulder joint except A. Suprascapular nerve B. Long head of biceps tendon C. Supraspinatus tendon D. Subacromial bursa
Answer- A. Suprascapular nerve The most vulnerable structures to be compressed during flexion and abduction are A. Supraspinatus tendon B. Biceps long head C. Subacromian bursa
Action of deltoid and supraspinatus A. Neck flexion B. Shoulder adduction C. Elbow flexion D. Shoulder abduction
Answer- D. Shoulder abduction
All the muscles are used to abduct the shoulder except A. Deltoid B. Supraspinatus C. Serratus anterior D. Pectoralis major
Answer- D. Pectoralis major
Pectoralis major is a powerful adductor and internal rotator or medial rotator and flexion of shoulder joint.
Muscles causing abduction at shoulder joint are A. Supraspinatus B. Deltoid C. Serratus anterior D. Trapezius
Rupture of supraspinatus manifests as A. Painful movements B. Flat shoulders C. Difficulty in initiation of abduction D. Difficulty in abduction after 90 deg
Answer- C. Difficulty in initiation of abduction
A 50 year old female has undergone mastectomy for Ca breast. After mastectomy, patient is unable to extend, adduct and internally rotate the arm. Nerve supply to which of the following muscles is damaged A. Pectoralis major B. Teres minor C. Latissimus dorsi D. Long head of triceps
Answer- C. Latissimus dorsi
Latissimus dorsi medially rotates, extends and adducts shoulder joint. In combination of pectoralis major it adducts shoulder joint and causes downward rotation and depression of scapula
Mnemonic MaRRIED Lady i.e. Medial Rotation, Extension and ADDuction of humerus, downward rotation and depression of scapula is done by Latissimus dorsi
Movements taking place during abduction of shoulder joint are all except
A. Medial rotation of scapula
B. Axial rotation at acromioclavicular joint
C. Elevation of humerus
D. Movements of clavicular end of sternoclavicular joint.
Answer- A. Medial rotation of scapula
Shoulder abduction is associated with lateral rotation of scapula not medial rotation, whereas adduction is associated with medial rotation of scapula.
While carrying a heavy suitcase, the downward dislocation of glenohumeral joint is resisted by the following muscles except A. Deltoid B. Coracobrachialis C. Short head of biceps D. Latissimus dorsi
Answer- D. Latissimus dorsi
