Anatomy Website

Parent Structures

Joints of the Upper Limb

Joint Classification

Joint Actions

Abduction
- Agonist
  - Flexor Carpi Radialis - Radial Deviation
  - Extensor Carpi Radialis Longus - Radial Deviation
  - Extensor Carpi Radialis Brevis - Radial Deviation
Adduction
- Agonist
  - Flexor Carpi Radialis - Ulnar Deviation
  - Extensor Carpi Ulnaris - Ulnar Deviation
Extension
- Innervator
  - C8
  - C7
- Agonist
  - Extensor Carpi Radialis Longus
  - Extensor Carpi Radialis Brevis
  - Extensor Carpi Ulnaris
  - Extensor Digitorum
  - Extensor Indicis - After Index finger fully extended
  - Extensor Digiti Minimi - After Little finger fully extended
Flexion
- Innervator
  - C6
  - C7
- Agonist
  - Flexor Carpi Ulnaris
  - Flexor Carpi Radialis
  - Palmaris Longus
  - Flexor Digitorum Superficialis - After fingers fully flexed
  - Flexor Digitorum Profundus - After fingers fully flexed

Bones

Articulating Surfaces

Ligaments