THE ELBOW JOINT (Dr
Anani)
, THE ELBOW JOINT
ARTICULATION OF ELBOW JOINT
The spool-shaped trochlea and spheroidal capitulum of the humerus articulate
the trochlear notch of the ulna and the slightly concave superior aspect of the
of the radius, respectively; therefore, there are humero-ulnar and humeroradia
articulations.
JOINT CAPSULE OF ELBOW JOINT
The fibrous layer of the joint capsule surrounds the elbow joint. It is attached to
humerus at the margins of the lateral and medial ends of the articular surfaces
the capitulum and trochlea. Anteriorly and posteriorly, it is carried superiorly,
proximal to the coronoid and olecranon fossae. The synovial membrane lines th
internal surface of the fi brous layer of the capsule and the intracapsular
nonarticular parts of the humerus. It is also continuous inferiorly with the syno
membrane of the proximal radio-ulnar joint. The joint capsule is weak anteriorl
posteriorly but is strengthened on each side by collateral ligaments.
Anani)
, THE ELBOW JOINT
ARTICULATION OF ELBOW JOINT
The spool-shaped trochlea and spheroidal capitulum of the humerus articulate
the trochlear notch of the ulna and the slightly concave superior aspect of the
of the radius, respectively; therefore, there are humero-ulnar and humeroradia
articulations.
JOINT CAPSULE OF ELBOW JOINT
The fibrous layer of the joint capsule surrounds the elbow joint. It is attached to
humerus at the margins of the lateral and medial ends of the articular surfaces
the capitulum and trochlea. Anteriorly and posteriorly, it is carried superiorly,
proximal to the coronoid and olecranon fossae. The synovial membrane lines th
internal surface of the fi brous layer of the capsule and the intracapsular
nonarticular parts of the humerus. It is also continuous inferiorly with the syno
membrane of the proximal radio-ulnar joint. The joint capsule is weak anteriorl
posteriorly but is strengthened on each side by collateral ligaments.
