General Arm/Forearm Questions Flashcards
Erb-Duchenne paralysis
Medial rotation of the arm (lateral pectoral and suprascapularis nerve affected, pectoralis major and infra/supraspinatus), lateral aspect of forearm may be affected (musculocutaneous, lateral antebrachial cutaneous nerve) and well as the muscles innervated by the musculocutaneous nn (coracobrachialis, biceps brachii, brachialis).
Winged Scapula, which parts of the brachial plexus injured
C5,C6,C7- wings to heaven. roots of the brachial plexus
Flexor digitorum profundus flexes which part of the fingers?
Flexor digitorum superficialis?
DISTAL interphalangeal
DIP. DIG.
Superficialis– proximal interphalangeal
Anterior wall of the axilla
Pectoralis Minor
Median nerve innervation
Pronator teres, pronator quadratus, and skin over the anterior aspect of the thumb
flexors (flexor carpi ulnaris, palmaris longus, flexor carpi radii, flexor digitorum superficialis, flexor digtorum profunus, flexor pollicis longus)
Radial Nerve Injury
Fracture at midshaft of humerus, wrist job due to lack of extension of the arm/forearm
Contents of the cupital fossa from medial to lateral
Median nerve, brachial artery, biceps brachii tendon, radial nerve
Injury to Median Nerve
Ape hand (thumb permanently extended)
Damage to the ulnar nerve
Claw hand and flattening to the hypothenar eminence
What lies superficial to the flexor retinaculum
ulnar nerve, ulnar artery, palmaris longus tendon, and palmar cutaneous branch of the median nerve
If brachial artery were ligated at its origin, what would supply blood to the profunda brachii?
posterior humeral circumflex
what two fingers does the medial nerve supply?
median–flexor, anterior compartment, lateral two lumbercals–index and middle fingers
What muscles can supinate the forearm?
biceps brachii (musculocutaneous) (anterior compartment) supinator (radial) (posterior compartment)
Funny bone syndrome
Ulnar nerve– posterior and dorsal surface of medial third of the hand and the medial one and one half fingers.
What runs with the radial nerve distal to the cubital fossa?
Deep brachial artery
Nerves and their relationship to Humeral injuries
surgical neck–axillary
Radial grove-radius
Distal end- median
medial epicondyle–ulnar nerve (biceps brachii runs to the olecranon)
Glenohumeral Joint
Transverse ligaments support biceps brachii long head
Coracoacromial bursa—Bursitis (trouble abduction)
Subscapular bursa
Shoulder Seperation
Disruption of the acrolioclavicular joint and the coracoacromial ligament–can also develop bursitis and cause pain with shoulder abduction
Two Aspects of the Coracoclavicular Ligaments
Coniod and Trapezoid
Which ligament of the elbow is seen on the lateral side
Radial collateral (and anular)
which ligament of the elbow is seen on the medial side
ulnar ligament
blood supply to trapezius
transverse cervicle
Latissimus dorsi artery and nerve
thoracodorsal artery and nerve
Origins of the Biceps brachii
long head–supraglenoid tubercle
short head–coracoid process
Infraglenoid and supraglenoid tubercles of scapula (muscles_
Supraglenoid– long head of biceps brachii
Infraglenoid –long head of triceps brachii
Flexor digitorum Superficialis
Anterior interosseous nerve and artery
PIP (proximal interphalangeal joints)
wrist, and metacarophalangeal
Median nerve problems in hand
cannot flex the PIP of the 1-3rd digits, and the DIP of the 4th and 5th
Ulnar Nerve Problems in Hand and wrist
Cannot flex the 4th and 5th digits (DIP)
