anatomy 19.04 upper limb mock test Flashcards
What sort of a synovial joint is the elbow?
Bicondylar
Plane
Hinge
Ellipsoid
Ball and socket
Hinge
Which of the distal row of carpal bones is most likely to be fractured?
Scaphoid
Pisiform
Trapezium
Lunate
Triquetral
Trapezium is the only one from a distal row here
A man cannot extend his arm and forearm and has loss of sensation on the posterior aspect of the upper limb extending down to the dorsum of the hand. Which of the following is the most likely nerve injury? Lateral cord Axillary nerve Radial nerve Medial cord Posterior cord
Radial nerve compression. It gives sensory supply to dorsal aspect of the hand, thumb, index and middle fingers and the lateral side of ring finger except the nail beds (they are supplied by proper digital branches of median)
Fall on the forearm. Numbness over the 1st dorsal web space of the hand. Posterior interosseus Palmar branch of median Superficial ulnar nerve AIN Radial
Radial
Contents of quadrangular space: axillary nerve + ?
Post. circumflex humeral artery
Radial nerve
Circumflex scapular artery
Deep artery of the arm
Thoracodorsal nerve
Posterior circumflex humeral artery
Injury to posterior cords of the brachial plexus. From which level of the spinal it contains nerve fibres?
C5 C6 C7
C5
C7,8, T1
C8, T1
C5,6,7,8, T1
C5,6,7,8,T1
Which muscles depress glenoid fossa directly?
Pectoralis minor
Serratus anterior
Supraspinatus
Pectoral major
Latissimus dorsi
Pectoralis minor
Scaphoid bone receives its blood supply from which of the following ends?
None of the below
Distal end
Lateral end
Medial end
Proximal pole
Distal end. So AVN is more prone at proximal site
Loss of action of the muscle inserting to the crest of the lesser tubercle of the humerus?
Median nerve
Axillary nerve
Lower subscapular
Long thoracic
Radial
Subscapularis muscle -> lower subscapular nerve
Supracondylar humeral fracture. WHich nerve is at the greatest risk?
Median
Deep branch ulnar
PIN
Ulnar
AIN
AIN.
Spinal cord injury at C8. What is likely to be seen?
Unable to flex humerus
Brachialis muscle will be paralysed
Innervation to the deltoid will be affected
Radial nerve muscles (most proximal ones) would be affected
Hypothenar muscles would be completely paralysed
Hypothenar muscles would be completely paralysed. C8 - ulnar nerve.
Which muscle forms posterior wall of the axilla along with scapula, subscapularis muscle, teres major?
pectoralis major
Latissimus dorsi
Trapezius
Serratus anterior
Supraspinatus
Latissimus dorsi
Relation of extensor indicis to extensor digitorum in index finger?
Lateral
Posterior
Anterior
Medial
Medial
Which muscles originate from the common flexor tendon?
Flexor carpi ulnaris Palmaris longus Flexor carpi radialis Pronator teres Flexor digitorum superficialis
Which nerve may be injured during a surgery for Dupuytren’s contracture of ring finger lateral to long flexor tendons at level of MCP joints?
Recurrent branch of median
Dorsal branch of ulnar
Deep branch of ulnar
Superficial branch of ulnar
Digital branch of median
Digital branch of median
Laceration of the anterior aspect of the hand. Thenar muscle atrophy with lost opposition. Which nerve is involved?
Recurrent branch of median nerve
PIN
Deep ulnar nerve
AIN
Superficial ulnar nerve
Recurrent branch of median nerve
Weakness of intrinsic hand muscles with loss of sensation over the inner aspect of the arm. Cause?
Ulnar at wrist
Ulnar at elbow
Lower trunk of brachial plexus
Radial
Superior sulcus tumour
Lower trunk injury - Klumpke’s palsy
Median + ulnar nerve
Sensory of C8 T1 - medial one and medial forearm and medial lower arm T1
Unable to lift thumb off the table with the palm facing upwards. Which nerve is impaired?
Radial
Median
PIN
AIN
PIN. Weakness of extensor muscles, wrist and finger drop
Which axillary nodes are medial to the pectoralis minor?
Apical
Lateral
Pectoral
Central
Subscapular
Apical
