Bursae, Spaces, and Tendon Sheaths
of Hand Anatomy
Pronator quadratus muscle, Flexor
carpi radialis tendon, Flexor retinaculum (transverse carpal ligament) (reflected),
Flexor digitorum profundus tendons (2, 3, 4, 5), Tendinous sheath of flexor pollicis
longus muscle, Fascia of adductor pollicis muscle, Thenar space (deep to flexor
tendon and 1st lumbrical muscle), Anular and cruciform parts (pulleys) of
fibrous sheath (over synovial sheath of finger) (Synovial) tendon sheath of
finger,
Lumbrical muscles in fascial sheaths (cut and reflected), Flexor
pollicis longus tendon in tendon sheath Common flexor sheath, Flexor digitorum
superficialis tendons proximally (3, 4 superficial: 2, 5 deep), distally (2, 3,
4, 5 same plane) Common flexor sheath (ulnar bursa) (opened), Lumbrical
muscles in fascial sheaths, Midpalmar space (deep to flexor tendons and
lumbrical muscles), Fibrous and synovial (tendon) sheaths of finger (opened),
Flexor digitorum superficialis tendon, Flexor digitorum profundus tendon, Common
palmar digital artery and nerve, Lumbrical muscle,in its fascial sheath, Flexor
tendons to 5th digit in common flexor sheath, Dorsal fascia of hand, Tendinous
sheath of flexor pollicis longus muscle, Septa forming canals, Profundus and
superficialis flexor tendons to 3rd digit, Septum between midpalmar and thenar
spaces, Thenar space,Extensor pollicis longus tendon, Adductor pollicis muscle,
Palmar interosseous muscles, Dorsal interosseous muscles, Extensor tendons, Midpalmar
space.
