Elbow

Question 0

Distal attachment of Triceps Brachii

Answer 0

Posterior aspect of proximal aspect of olecranon of the ulna and deep fascia of the forearm.
A few fibres from the medial head, the articularis cubiti, attach to the posterior part of the capsule of the elbow joint

Question 1

Proximal attachment of Triceps Brachii

Answer 1

Long head- infraglenoid tubercle and adjacent glenoid labrum of the scapula, blending at its upper part with the shoulder joint capsule
Lateral head- an area superolateral to the spiral groove on the posterior aspect of the shaft of the humerus between the attachments of Deltoid and Teres Minor
Medial head- posterior surface of the humerus, inferomedial to the spiral groove as far distally as the olecranon fossa

Question 2

Nerve supply Triceps Brachii

Answer 2

Radial Nerve C6,C7, C8
Lateral head C6,C7
Medial and Long heads C7,C8

Question 3

Proximal attachment Brachioradialis

Answer 3

Upper two thirds of lateral supracondylar ridge of humerus and adjacent part of lateral intermuscular septum

Question 4

Distal attachment Brachioradialis

Answer 4

Lateral surface of radius just proximal to styloid process

Question 5

Nerve supply Brachioradialis

Answer 5

Radial Nerve C5, C6

Question 6

Proximal attachment Supinator

Answer 6

Humeral head- lateral epicondyle of humerus by common extensor tendon and takes fibres from radial collateral ligament of elbow joint and annular ligament of superior tibiofibular joint
Ulnar head- supinator crest on ulna and supinator fossa of ulna

Question 7

Distal attachment Supinator

Answer 7

Posterior, lateral and anterior aspects of the radius, from the neck as far down as the attachment of Pronator Teres on mid shaft of the radius

Question 8

Nerve supply Supinator

Answer 8

Posterior Interosseous Nerve C5, C6