Joints, Ligaments, Nerve Supply, and Blood Supply of Elbow Complex, Wrist, and Hand

PT605 Anatomy, Oregon Tech

Ulnohumeral Joint

Diarthrodial synovial joint, hinge, uniaxial, flexion/extension.

Radiohumeral Joint

Diarthrodial synovial joint, hinge, uniaxial, flexion/extension.

Proximal Radioulnar Joint

Diarthrodial synovial joint, pivot, uniaxial, forearm pronation/supination.

Distal Radioulnar Joint

Diarthrodial synovial joint, pivot, uniaxial, forearm pronation/supination.

Radiocarpal Joint

Diarthrodial synovial joint, condyloid, biaxial, flexion/extension and radial/ulnar deviation.

Metacarpophalangeal Joints

Diarthrodial synovial joint, condyloid, biaxial, MCP flexion/extension and MCP abduction/adduction.

Intercarpal Joints

Diarthrodial synovial joint, plane, triaxial, glide in all directions during wrist motions.

Interphalangeal Joints

Diarthrodial synovial joint, hinge, uniaxial, IP flexion/extension.

1st Carpometacarpal Joint

Diarthrodial synovial joint, sellar (saddle), biaxial, 1st CMC flexion/extension and 1st CMC abduction/adduction.

Arcade of Struthers

Formed by supracondylar process, medial supercondylar ridge, and Struther’s ligament (ligamentum Struther’s). Contents are brachial artery and median nerve.

Cubital Tunnel

Formed by ulnar groove, two heads of FCU, and FCU arcade. Contents are ulnar nerve.

Medial Collateral Ligament

Formed by the anterior band, posterior band, and oblique band.

Lateral Collateral Ligament

Formed by the radial collateral ligament and lateral ulnar collateral ligament.

Forearm Ligaments

Formed by the annular ligament, oblique cord, and interosseous membrane.

Collateral Ligaments of the Wrist

Formed by the ulnocarpal collateral ligament and radiocarpal collateral ligament.

Palmar Ligaments of the Wrist

Formed by the palmar radiocarpal ligament.

Dorsal Ligaments of the Wrist

Formed by the dorsal radiocarpal ligament.

Carpal Tunnel

Formed by the transverse carpal ligament (ceiling), the tubercle of the scaphoid, the tubercle of the trapezium, pisiform, and the hook of hamate (pillars), and carpal bones (floor). Contents are FDP, FDS, FPL, and median nerve.

Guyan’s Canal

Formed by the pisohamate ligament (ceiling), and the hamate and triquetrum (floor). Contents are the ulnar nerve and ulnar artery.

Supporting Finger Structures

Formed by the joint capsule, collateral ligament, glenoid ligament, and volar plate.

Finger Ligaments

Formed by the collateral ligament and glenoid ligament.

1 Lateral Antebrachial Cutaneous Nerve

Musculocutaneous nerve

2 Superficial Radial Nerve

Radial nerve

3 Sensory Branch of the Median Nerve

Median nerve

4 Medial Antebrachial Cutaneous Nerve

Medial cord of brachial plexus

5 Sensory Branch of the Ulnar Nerve

Ulnar nerve

6 Posterior Antebrachial Cutaneous Nerve

Radial nerve

Sensory Nerves of Palmar View of the Hand

Ulnar nerve and median nerve.

Sensory Nerves of Dorsal View of the Hand

Ulnar nerve, median nerve, and superficial radial nerve.