OUTLINE
WRIST, HAND & THUMB
I. Articular Anatomy
A. Radiocarpal Joint
1. Ligaments
a. volar (anterior) radiocarpal
b. dorsal (posterior) radiocarpal
c. radial collateral
d. ulnar collateral
2. Cartilage
a. Fibrocartilage articular disk distal to ulnar head
3. Movements
a. flexion/extension
b. abduction/adduction (radial/ulnar deviation)
c. circumduction
B. Distal Radioulnar Articulation
1. Osseous Anatomy
a. Radius - Ulnar Notch
b. Ulna (head)
2. Ligamentous Anatomy
a. Dorsal radioulnar (Posterior)
b. Volar radioulnar (Anterior)
3. Cartilage
a. Fibrocartilage disk between ulnar head & carpal bones (Lunate & Triquetrum)
C. Intercarpal & Midcarpal Joints
1. Movement
a. gliding
D. Carpometacarpal Joints
1. Fingers (including Intermetacarpal joints)
a. Movement
1. gliding
2. Thumb
a. Movements
1. abduction/adduction
2. flexion/extension
3. opposition
4. circumduction
E. Metacarpophalangeal Joints
1. Fingers
a. Movements
1. flexion/extension
2. abduction/adduction
3. circumduction
2. Thumb
b. Movements
1. flexion/extension
F. Interphalangeal Joints
1. Fingers
a. Movements
1. flexion/extension
2. Thumb
a. Movements
1. flexion/extension
II. Extrinsic Muscles of the Wrist and Hand
A. Flexor Group
1. Flexor Carpi Radialis
2. Flexor Carpi Ulnaris
3. Palmaris Longus
4. Flexor Digitorum Superficialis
5. Flexor Digitorum Profundus
B. Extensors
1. Extensor Carpi Radialis Longus
2. Extensor Carpi Radialis Brevis
3. Extensor Carpi Unlaris
4. Extensor Digitorum
5. Extensor Indicis
6. Extensor DigitI Minimi
III. Intrinsic Muscles of the Wrist and Hand
A. Flexor Digiti Minimi
B. Opponens Digiti Minimi
C. Dorsal Interossei
D. Palmar Interossei
E. Lumbricales
IV. Muscles of the Thumb
A. Extrinsic
1. Abductor Pollicis Longus
2. Extensor Pollicis Longus
3. Extensor Pollicis Brevis
4. Flexor Pollicis Longus
B. Intrinsic
1. Abductor Pollicis Brevis
2. Flexor Pollicis Brevis
3. Adductor Pollicis
4. Opponens Pollicis