Elbow

Trochlea of Humerus

Trochlea of Humerus The structure indicated is the trochlea of the humerus. The distal end of the humerus consists of several features: Condyle, consisting of the capitulum and trochlea Medial and lateral epicondyles Medial and lateral supracondylar ridges Radial fossa, coronoid fossa, olecranon fossa A large central condyle which has two articular components – the capitulum is the lateral articular component and articulates with the radius, and the trochlea is the medial component which articulates with the ulna. Learn more about the anatomy of the elbow joint in this tutorial.

Trochlea

Lateral Supracondylar Ridge

Lateral Supracondylar Ridge The distal end of the humerus consists of several features: Condyle, consisting of the capitulum and trochlea Medial and lateral epicondyles Medial and lateral supracondylar ridges Radial fossa, coronoid fossa, olecranon fossa A large central condyle which has two articular components – the capitulum which articulates with the radius, and the trochlea which articulates with the ulna. Either side of the humeral condyle, are two epicondyles, the medial and lateral epicondyles superior to which are the medial and lateral supracondylar ridges. The following muscles attach to the lateral supracondylar ridge: Brachioradialis Extensor carpi radialis longus Triceps brachii …

Lateral Supracondylar Ridge Read More »

Lateral supracondylar ridge

Head of Radius

Head of Radius The structure indicated is the head of the radius. The proximal end of the radius consists of the following features Head Neck Radial tuberosity The head of the radius articulates with the capitulum of the humerus (humeroradial joint) which is one of three articulations at the elbow joint. The other two articulations at the elbow joint are the articulations between the trochlea notch of the ulna and the trochlea of the humerus, and the joint between the radial head and the radial notch of the ulna – the proximal radio-ulnar joint. The radial head is encapsulated by …

Head of Radius Read More »

Head of Radius

Capitulum of Humerus

Capitulum of Humerus The structure indicated is the capitulum of the distal humerus. The distal end of the humerus consists of several features: Condyle, consisting of the capitulum and trochlea Medial and lateral epicondyles Medial and lateral supracondylar ridges Radial fossa, coronoid fossa, olecranon fossa A large central condyle which has two articular components – the capitulum which articulates with the head of the radius, and the trochlea which articulates with the ulna. Either side of the humeral condyle, are two epicondyles, the medial and lateral epicondyles superior to which are the medial and lateral supracondylar ridges. Learn more about …

Capitulum of Humerus Read More »

Capitulum of humerus

Median Cubital Vein

Median Cubital Vein The structure indicated is the median cubital vein. The median cubital vein is a superficial vein located in the cubital fossa anteriorly in the elbow, and connects the basilic and cephalic veins. The basilic and cephalic veins are two large superficial veins of the upper limb which arise from the dorsal venous network of the hand. The basilic vein arises medially from the dorsal venous network of the hand, whereas the cephalic vein arises laterally from the dorsal venous network. These two veins drain to the axillary vein. The deep venous system of the upper limb follows …

Median Cubital Vein Read More »

medial cubital vein

Radial Collateral Ligament of Elbow

Radial Collateral Ligament of Elbow The structure indicated is the radial collateral ligament of the elbow. The fibrous joint capsule which surrounds the elbow joint is reinforced medially and laterally, where it thickens to form the collateral ligaments – the radial collateral ligament and the ulnar collateral ligament. Surrounding the radial head is the annular ligament, the fibres of which blend with the fibres of the radial collateral ligament. Because of the way the joint capsule is thickened to form ligaments with blended fibres, the elbow ligaments on the lateral aspect of the elbow are often referred to collectively as …

Radial Collateral Ligament of Elbow Read More »

Radial Collateral Ligament of Elbow