1. Normal function of the fingers (2-5) involves a prehension phase and a release phase while holding and/or manipulating objects in the hand. Which activity initiates the release phase?
a. relaxation of wrist flexors
b. relaxation of long finger extensors
c. forceful contraction of the finger flexors
d. simultaneous relaxation of both wrist flexors and extensors
e. relaxation of long finger flexors
2. Which prehensile pattern would be most limited by severance of the nerve passing to the radial side of pisaform?
a. spherical prehension
b. hook grasp
c. tip-to-tip grasp
d. palmer prehension
3. A patient sustained a third degree burn to the left hand. After healing, large hypertrophic scars (keloids) developed in the web space between the thumb and index fingers. Which prehensile pattern would you expect to be most functionally limited?
a. hook grasp
b. medial prehension
c. lateral prehension
Posted November 15, 2000