Posted by lc on September 29, 2009 at 10:55:56:
In Reply to: Re: Extensor Region of Forearm and Dorsum of Hand: True/False posted by JK on September 28, 2009 at 21:38:58:
33. These two were drawn together in a cross-section in class, but the accuracy of that is also questionable.
34. Gray's states on page 888 (Making a tight fist) that the extensor compartment is tightly contracted and the wrist extensors would be expected to be active (while making a fist). Wouldn't this suggest that they are working together? Please confirm/reject.
35. Abduction at Wrist:
Extensor Carpi Radialis Longus - Radial N.
Extensor Carpi Radialis Brevis - Deep Radial N.
Extensor Pollicis Brevis - PIB of Deep Radial N.
Adduction at Wrist:
Extensor Carpi Ulnaris - PIB of Radial N.
Are there any I am missing?
If you take out the Deep Radial N (PIB as well), you are hindering all the above muscles but Extensor Carpi Radialis Longus (an abductor).
Wouldn't this question be true?
What ya think?