The Arm and Forearm Flashcards
Where does the radial nerve exist in relation to the lateral epicondyle?
Four fingerbreaths above the lateral epicondyle
Where does the posterior interosseous nerve exist in relation to the lateral epicondyle?
Two fingerbreadths below the lateral epicondyle
Which nerve sits just behind the medial epicondyle of the elbow?
Ulnar nerve
The ulnar nerve passes between the two heads of which muscle on its way to the forearm?
Flexor carpinulnaris
The two heads of the biceps brachii combine to attach to…?
The radial tuberosity and bicipital aponeurosis
The biceps brachii, corwcobrachialis and brachialis muscles are all innervated by which nerve?
Musculocutaneous nerve
The tricpes brachii muscle is innervated by which nerve?
Radial nerve
What are the origin points for the long and short head of the biceps barachii muscle?
Shirt head - coracoid process of scapula
Long head - supraglenoid tubercle
What is the origin and insertion of the coracobrachilis muscle?
Coracoid process and anteromedial surface of the humerus distal to the lesser tubercle
What is the insertion and origin of the brachialis muscle?
Anterior surface of the distal half of the humerus and the cornoid process and tuberosity of the ulna
What are the origins and insertion of the tricpes brachii muscle?
Long head - infraglenoid tubercle
Lateral head - above the radial sulcus
Medial head - below the radial sulcus
Insert on olecranon of the ulna
Which muscles comprise the mobile wad of three?
Brachioradialis
Extensor carpi radialis longus
Extensor carpi radialis brevis
Which nerve innervates the mobile wad of three?
Radial nerve
The extensor muscles of the forearm, supinator and anconeus are all innervated by which nerve?
Radial nerve
Which muscles of the forearm are innervated by the ulnar nerve?
Flexor carpi ulnaris
The medial portion of flexor digitorum profundum
