the hand Flashcards

carpal tunnel syndrome: describe the position and function of the retinacula of the wrist and the tendon sheaths of the wrist and hand in order to explain carpal tunnel syndrome and the spread of infection in tendon sheaths

1
Q

what does the carpal tunnel give passage to from forearm into hand

A

median nerve, tendon of flexor pollicis longus, four tendons of flexor digitorum profundus, four tendons of flexor digitorum superficialis

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

what is the carpal tunnel base formed by

A

bony arch of carpal bones (palpable bony margins are tubercles of scaphoid and trapezoid bones laterally, and pisiform and hamate (hook) bones medially - forms a gutter shape and attachment for flexor retinaculum)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

what is the roof of the carpal tunnel formed by

A

flexor retinaculum (transverse carpal ligament)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

what does carpal tunnel syndrome result from

A

compression of median nerve in carpal tunnel, resulting in tingling, loss of sensation and pain in hand

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

what median nerve branch doesn’t pass through carpal tunnel (lies anterior to flexor retinaculum), and so isn’t affected

A

palmar cutaneous branch of median nerve

How well did you know this?
1
Not at all
2
3
4
5
Perfectly