Asked by Christian Emmerton on May 21, 2024
Verified
In an accident, the extensor muscles across the back of the fingers of one hand are completely severed. What is the result if no surgery is done to rejoin them?
A) The fingers will dangle and extend out limp.
B) The fingers will curl and remain permanently flexed.
C) The fingers will forcibly extend and remain extended.
D) Hand movements will continue as before the accident.
E) The outcome will depend on how the muscles heal.
Extensor Muscles
Muscles that work to extend or straighten a joint, opposite to flexor muscles.
Flexed
Bent or tensed, often referring to a muscle position.
- Comprehend the principles associated with the interplay between muscles and bones.
Verified Answer
AR
Ashley RodingMay 26, 2024
Final Answer :
B
Explanation :
The extensor muscles are responsible for extending the fingers. Without these muscles, the flexor muscles (which are usually stronger) will naturally pull the fingers into a curled position. Therefore, if no surgery is done to rejoin the extensor muscles, the fingers will curl and remain permanently flexed.
Learning Objectives
- Comprehend the principles associated with the interplay between muscles and bones.