Final answer:
Lower motoneuron lesions lead to decreased muscle tone, decreased deep tendon reflexes, and decreased toe movement, as well as flaccid paralysis, fibrillation, and fasciculation. This means that 'All of the above' is the correct answer to the given options.
Step-by-step explanation:
The effects of lower motoneuron (LMN) lesions include a range of motor system impairments. Among these effects are decreased muscle tone, decreased deep tendon reflexes, and decreased toe movement. A lesion on the LMN may lead to flaccid paralysis, which represents a complete or partial loss of muscle tone, distinguishing it from the spastic paralysis seen in upper motoneuron (UMN) lesions. Additionally, LMN lesions often result in fibrillation, fasciculation, and overall compromised or lost reflexes due to the denervation of the muscle fibers. Hence, all the symptoms listed are associated with LMN lesions, leading to option 4) All of the above as the correct answer to the question.