List the actions of each of the major muscles involved in flexion and extension at the WRIST

Flexors

Flexor carpi ulnaris, flexor digitorium superficialis, palmaris longus, flexor carpi radialis, flexor pollicis longus, flexor digitorium profundus

Extenders

Extensor carpi radialis longus, extensor pollicis longus, extensor pollicis brevis, extensor digitorium, extensor carpi radialis brevis, extensor digiti mini I, extensor carpi ulnaris, extensor indicis, supinator

List the actions of each of the major muscles involved in flexion and extension at the KNEE

(Flexors)

Biceps femoris, Semitendinosus, semimembranosus

List the actions of each of the major muscles involved in flexion and extension at the KNEE

(Rectus femoris, vastus lateralis, vastus medialis)