Elbow Joint Flashcards
What joints allow Flexion/extension of the elbow
Humero-ulnar joint
Humero-radial joint
What joints allow supination/pronation of elbow
Radio-ulnar joint
Classify the radio-ulnar joint
Proximal- synovial pivot
Middle- fibrous joint (syndesmosis)
Distal- uniaxial synovial pivot
Areas of articulation of humero-ulnar joint
Radial notch
Trochlear notch
Classify the humero ulnar joint
Synovial hinge joint
Classify the humero radial joint
Limited ball and socket
What bony landmark of the humerus articulates with the radius
The capitulum (lateral area of condyle)
What bony landmark of the humerus articulates with the ulnar
The trochlea (medial part of condyle)
What part of the ulnar articulates with the humerus?
Trochlear notch
What part surface of the ulnar articulates with the radius
The radial notch
Bony projection medial aspect of elbow joint
Coronoid process
Name these three ligaments
Green- radial collateral ligament
Pink- annular ligament
Orange- ulnar collateral ligament
Annular ligament function
Stabilise radio ulnar joint
Which is bigger annular ligament or quadrate
Annular.
Quadrate is thinner but more fibrous.
Function of the collateral ligaments of the elbow joint
Stabilizers
Elbow Flexion ROM
140-150
Elbow extension ROM
0-5
Muscles involved in elbow Flexion
Brachialis
Biceps brachii
Brachioradialis
Pronator teres
Brachialis attachments
From: anterior aspect of humerus
To: Tuberosity of ulnar
Biceps brachii attachments
From: LH- Supraglenoid tubercle of scapula
SH- Coracoid process of scapula
To: Radial tuberosity (inferior to neck of radius anterior medial aspect)
Cubital fossa borders
Lateral: Brachioradialis muscle
Medial : Pronator teres muscle
Superior/Base: imaginary line between the epicondyles
Cubital fossa contents
Brachial artery
Median nerve
Tendon of the biceps brachii
