Lecture 4.1 Flashcards
The elbow joint is compound meaning
more than two articular surfaces in the capsule
The blood supply of the Elbow joint is frm…
Branches of brachial artery
What innervates the elbow joint?
Musculocutaneous, radial and ulnar nerve
the medial colateral ligament of the elbow has _ bands
3
Anterior, poserior, oblique
where is the olecranon bursae
where is the annular ligament
Fat pads help spread _______ _____-
synovial fluid
as well as cushion
The Carrying angle is greater in ___ and _____
women and adults
A medial displacement of the forearm is a
_____
varus
valcus = lateral
The biceps are able to produce greater contraction if the arm is supernated or pronated?
supernated,
acts across two joints - greater pull
Triceps insert on the ….
olecranon process of the Ulna
Which number is the anconeus?
11 - anconeus;
The interossesus membrane transmits the forces when _______ and ___________
The interossesus transmits the forces when supernating and pronating
at distal end - 80%
__________ at one end of the radius/ulna will likel lead to dislocation at the other end
Fracture at one end of the radius/ulna will likel lead to dislocation at the other end
The proximal radioulnar joint is a ____ joint
The proximal radioulnar joint is a pivot joint
ring , within which rotation occurs
The sacciform recess allows ___ movement, and a lax joint
fluid movement
true or false
The annular ligaemeent attaches to the radius
false
True or False
The annular ligament blends with the radioulnar ligament and attahes on the lateral epicondyle
true
The distal radioulnar joint b/w the ___ of ulna and ulnar ____ on radius
The distal radioulnar jointis b/w the head of ulna and ulnar notch on radius
the reason the ulna doesn’t make contact with the carpal bones is…
the Articular disc (triangular) ligament sits in between
provides cushioning
nerve supply of distal radioulnar joint?
median and radial interosseous nerves
Blood supply of distal radioulnar joint/
Anterior, posterior interosseous arteries
What muscles act in pronation?
pronator teres (proximal)
pronator quadratis (distal)
Assisted by:
Flexor carpi radialis
palmaris longus
brachioradialis
Which muscles act in supination
?
Supinator
Biceps brachii
Assisted by:
extensor pollicis longus
Extensor carpi radialis longus
The annuluar ligament is lax in children which can cause
radial head displacement - pulled superiorly
True or false
the styloid processes of the ulna/radius are susceptible to avulsion fractures
true
