arm and supinator/pronators Flashcards
trochlea ulna
capitulum radius
olecranonfossa olecranon
ulna bigger proximal radial bigger distal
prox dist radioulnar j
trochlear notch head ulna
ulnar tuberosity insertion
brachial tendon
extension elbow joint
what ligament is this
which ligament is just below it surrounding radius
radial collateral ligament
annular ligament (allows rotation radius)
what is this
annular ligament radial head removed
what is this ligament
ulnar collateral ligament
what are the proximal row of carpal bones
scaphoid, triquetral, lunate
what are the distal row of carpal bones
trapezium, trapezoid, capitate, hamate
flexion partially at mid carpal joint and radoiocarpal
course radial collateral ligament
radius, scaphoid, trapezium
course ulnar collateral ligament
ulnar styloid, triquetral to pisiform
dorsal and palmar radoiocarpal ligament?
flexion and extension hold together
what is this muscle
brachialis
brachialis
arise
intertion
anterior humorous to ulnar tuberosity
what is the action brachialis
flex elbow
what is this muscle
biceps brachii
which head biceps brachia is the pointer pointing at
shorter head
where is short head biceps brachia
what does short head biceps share a common tendon with
coracobrachialis
from coracoid process
long head biceps course
through bicipital groove to supraglenoid superclule
what is biceps brachia insertion
two part tendon - radial tuberosity and fanned out tendon - thin sheet fascia bicepital aponeurosis
action biceps
flexes elbow + supinates
what is this muscle
brachioradialis
arises half way up humorous and inserts distal radius
what is the role brachioradialis
flexor
long head triceps
lateral head triceps
medial / deep head triceps
course long head triceps
infraglenoid tubercule
lateral head middle humorous
medial head medial distal humorous
[ radial nerve runs medial to lateral and medial heads]
what do three heads triceps emerge to form
tendon inserting olecranon
role of triceps
extension elbow
what is this muscle
ancones
lateral epicondyle lateral ulnar - minor elbow extensor
what is this muscle
pronator teres
course of pronator trees
medial epicondyle and ulna
halfway down radius
action pronation
does pronator trees have two heads
yes deep
median nerve passes between
what is this muscle
pronator quadratura
course pronator quadrates
ateromedial aspect ulnar to anteriorr radius
action pronation
what is this muscle
supinator
course of supinator
lateral epicondyle and ulna supinator crest
to radius
deep branch radial nerve runs through
action supination
