Question

Preventing bowstringing of tendons that transverse more than one joint:

a. The flexor retinaculum prevents bowstringing of the tendons of FDS, FDP, FPL during wrist volar flexion
b. The extensor retinaculum prevents bowstringing of the tendons of APL, EPB, EPL, EI, EDC, EDM during _____________________
c. The A1-5 and C1-3 pulleys prevent bowstringing of the tendons of FDS and FDP during _____________

Answer 1

Answer:

The suitable words for given fill in the blanks will be -

A. volar wrist flexion.

B. wrist flexion.

C. finger flexion.

Explanation:

Preventing bowstringing of tendons that transverse more than one joint:

A. The flexor retinaculum prevents bowstringing of the tendons of FDS, FDP, FPL during - volar wrist flexion

B. The extensor retinaculum prevents bowstringing of the tendons of APL, EPB, EPL, EI, EDC, EDM during - wrist flexion

C. The A1-5 and C1-3 pulleys prevent bowstringing of the tendons of FDS and FDP during- finger flexion.

• Bowstringing is a complication causes mainly by loss of proximal pulleys, mainly triggered by finger. The flexion arm is increased when flexor tendon moves away from the metacarpophalangeal joint.