upper and lower limb Flashcards
(136 cards)
what type of joint is the wrist?
an ellipsoid type biaxial synovial joint
movement allowed; flexion extension, adduction, abduction
no active rotation takes place
what bones are involved in the wrist joint?
Distally; proximal row of carpal bones except pisiform
Proximaly; distal end of radius, articular disc (fibrocartilginous ligament which lies between the ulna and the wrist joint
where does the dorsal scapular nerve come off
C5
what is serratus anterior supplied by
C5 C6 C7 long thoracic nerve
What does the median nerve supply?
Pronator teres, Felxor carpi radialia, palmaris longus
Flexor digitorum superficialis
Flexor digitorum profundus (lateral), Flexor pollicis longus, Pronator quadratus
1st and 2nd lumbricals, Opponens pollicis, Abductor pollicis brevis, Flexor pollicis brevis
Describe the annular ligament
attached to the margins of the radial notch
clasps the head and neck of the radius
is intracapsular
radius have no attachment to the annular
Contents of the Quadrangular space
Axillary nerve
Posterior circumflec artery and vein
Contents of triangular space
Circumflex scapular artery
Contents of triangular interval
radial nerve, profundi brachii artery
boundaries of the adductor canal (Hunters canal)
Anteriorly - sartorius
Postermedially - adductor longus and adductor magnus
laterally - vastus medialis
Describe the long head of biceps
is intracapsular, arise from the supraglenoid tubercle
the tendon of the long head passes through the shoulder joint and intertubecular groove of the humerus to meet the short head
At the level of the humeral shaft, the two heads combine to form the muscle belly
Boundaries of the anatomical snuff box
Medial/ulnar side = extensor pollicis longus
lateral/radial side = extensor pollicis brevis, abductor pollicis longus
proximal = styloid process of the radius
floor = trapezium and scaphoid
Describe the injury to the medial cord of the brachial plexus
Nerves involved; ulnar, medial root of median
Muscles paralysed; ulnar nerve supplied muscles, 5 muscles of the hand supplied by the median nerve
Claw hand
sensory loss to the ulnar side of the forearm and hand
In abduction of the arm what happens to the clavicle and the scapula?
medial end of the clavicle moves downwards
scapula moves laterally on the chest wall
Scapula movement at first slower than the humerus
what is the proximal row of the carpals of the wrist?
scaphoid lunate triquetrium pisiform
what carpal bones articulate with the radius
scaphoid and lunate
Extensor part of the wrist has 6 compartments; compartment 1 contains
Extensor pollicis brevis
Abductor pollicis longus
Extensor part of the wrist has 6 compartments; compartment 2 contains
Extensor carpi radialis brevis
Extensor carpir radialis longus
Extensor part of the wrist has 6 compartments; compartment 3 contains
Extensor pollicis longus
Extensor part of the wrist has 6 compartments; compartment 4 contains
Extensor digitorum
Extensor indicis
Extensor part of the wrist has 6 compartments; compartment 5 contains
Extensor digiti minimi
Extensor part of the wrist has 6 compartments; compartment 6 contains
extensor carpi ulnaris
origin, insertion, artery, nerve and action of palmaris longus
O; medial epicondyle of humerus
I; palmer aponeurosis
A; ulnar artery
N; median nerve
action; wrist flexor
Origin, insertion, artery, nerve and action of Extensor Pollicis Longus
O; middle third of posterior urface of ulna, interosseus membrane
I; thumb distal phalanx
A; posterior interoseus artery
N; Posterior interosseous nerve, branching from the radial nerve
Action; Extension of the thumb MCP and IP