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Re: Extensor Region of Forearm and Dorsum of Hand: True/False

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Posted by lae2 on October 01, 2009 at 21:57:28:

In Reply to: Re: Extensor Region of Forearm and Dorsum of Hand: True/False posted by pete on September 28, 2009 at 21:42:00:

: : Extensor Region of Forearm and Dorsum of Hand: Learning Objectives and Review Questions

: : 35. A lesion of the deep radial nerve as it spirals around the radius deep to supinator would cause the resting wrist position to be flexed and abducted.
: False - flexed yes but aDDucted

FALSE is the intended answer. Nevertheless, ECRL is the key muscle. ECRL was innervated prior to the deep radial nerve passing deep to supinator - correct? Thus, ECRL is doing fine. I predict a neutral wrist position.

Interesting that someone asked if abductor digiti minimi might be a wrist adductor. Yes; by way of tethering to FCU. In fact, try forcefully abducting your little finger and you will see your wrist adduct.

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: : : Extensor Region of Forearm and Dorsum of Hand: Learning Objectives and Review Questions : : : 35. A lesion of the deep radial nerve as it spirals around the radius deep to supinator would cause the resting wrist position to be flexed and abducted. : : False - flexed yes but aDDucted : FALSE is the intended answer. Nevertheless, ECRL is the key muscle. ECRL was innervated prior to the deep radial nerve passing deep to supinator - correct? Thus, ECRL is doing fine. I predict a neutral wrist position. : Interesting that someone asked if abductor digiti minimi might be a wrist adductor. Yes; by way of tethering to FCU. In fact, try forcefully abducting your little finger and you will see your wrist adduct.

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