If a Skeletal Muscle Fiber Is Excised from the Body

Multiple Choice

If a skeletal muscle fiber is excised from the body, mounted between two immovable plates, and then concentrically stretched (lengthened) , which will respond more than the other (in terms of firing action potentials) ?

A) A (alpha) motoneurons will respond more than γ motoneurons.
B) Γ motoneurons will respond more than α motoneurons.
C) A (alpha) and γ motoneurons will respond to the same extent.
D) Neither α nor γ motoneurons will respond in this artificial setup.
E) It depends on how much stretch is employed.