Elbow & Radioulnar Flashcards
(39 cards)
What does the annular ligament do?
It maintains the radial head
What holds together the shaft of the radius and ulna?
Interosseus membrane
Elbow movements?
Flextion and Extension
Radioulnar movements?
Pronation and Supination
What is the definition of pronation?
When the radius and ulna cross aka palm up
What is the definition of supination?
When the radius and und parallel aka palm down
Elbow flexors
Bicep brachii, brachialis, and brachioradialis
Elbow extensors
Tripe brachii and Aconeus
Radioulnar pronators
Pronator teres and pronator quadratus
Radioulnar supinators
Supinator and Bicep brachii
What is the insertion of the bicep brachii long head?
The superglenoid tubercle
What is the insertion of the bicep brachii short head?
The coracoid process
What is the origin of the bicep brachii?
The radial tuberosity of the radius
What is the insertion of the brachialis?
The coranoid process of the ulna
Where does the brachialis originate?
The distal half of anterior portion of the humerus
Where does the brachioradialis originate?
Distal two thirds of the lateral epicondyle
Where does the brachioradialis insert
The radial styloid process
Where does the long head of the tricep brachii originate?
The infraglenoid tubercle of the scapula
Where does the short head of the triceps brachii originate?
Upper half of posterior surface of the humerus
Where does the triceps brachii insert?
0lecrannon process of the ulna
Where does the aconeus originate?
Posterior surface of lateral condyle
Where does the aconeus insert?
Olecrannon process
Where is the first origin of the supinator?
Lateral epicondyle of humerus
Where is the second origin of the supinator?
Posterior part of the ulna
