Exam 8: Extrinsic Muscles of the Finger Joints

De Quervain's disease is caused by excessive friction between the tendons of the abductor pollicis longus and/or the extensor pollicis brevis and what bony structure?

Which is an action of the extensor pollicis brevis?

Which is an eccentric function of the abductor pollicis longus?

Which are the attachments of the extensor digitorum?

Which are actions of the flexor digitorum superficialis?

The distal attachments of what muscle spread out to become the dorsal digital expansion of fingers two through five of the hand?

Which are the attachments of the extensor indicis?

Which is an eccentric function of the flexor pollicis longus?

If a muscle crosses the metacarpophalangeal and interphalangeal joints of fingers two through five on the palmar (anterior)side with a vertical orientation to its fibers,what will its eccentric function most likely be?

Which is an action of the extensor indicis?

Which is an action of the flexor digitorum superficialis?

What nerve innervates the extensor pollicis brevis?

What nerve runs between the two heads of the flexor digitorum superficialis?

Which is an eccentric function of the flexor digitorum profundus?

If a muscle crosses the metacarpophalangeal and interphalangeal joints of fingers two through five on the dorsal (posterior)side with a vertical orientation to its fibers,what will its eccentric function most likely be?