1. Passive insufficiency. A
Passive insufficiency. A. The finger extensors become passively insufficient as they are lengthened over the wrist and fingers during wrist flexion. The passive tension that is developed causes extension of the fingers (tenodesis). B. The finger flexors become passively insufficient as they are lengthened over the wrist and fingers during wrist extension. The passive tension developed in the finger flexors causes the fingers to flex.
Source: Muscle Structure and Function, Joint Structure and Function: A Comprehensive Analysis, 5e
Citation: Levangie PK, Norkin CC. Joint Structure and Function: A Comprehensive Analysis, 5e; 2011 Available at: Accessed: March 11, 2018
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