Lower motor neuron lesions lead to what in the muscle?

Unlock all questions

This demo includes only 20 questions. Upgrade to access hundreds of questions, flashcards, exam simulations, and disable ads.

Full question bankExam simulationsFlashcards
From $25.99Unlock all

Study for the Parkinson’s Disease Exam. Engage with detailed flashcards and multiple-choice questions, each offering hints and explanations. Prepare effectively for your exam!

Multiple Choice

Lower motor neuron lesions lead to what in the muscle?

Explanation:
Lower motor neuron lesions disrupt the final pathway to the muscle, so the muscle loses its normal input. This produces decreased muscle tone (hypotonia), diminished or absent reflexes (hyporeflexia), and a floppy, limp muscle (flaccidity). Denervation can also cause spontaneous activity in the muscle fibers, such as fasciculations. In contrast, upper motor neuron lesions produce increased tone and reflexes, not a floppy, hyporeflexic state.

Lower motor neuron lesions disrupt the final pathway to the muscle, so the muscle loses its normal input. This produces decreased muscle tone (hypotonia), diminished or absent reflexes (hyporeflexia), and a floppy, limp muscle (flaccidity). Denervation can also cause spontaneous activity in the muscle fibers, such as fasciculations. In contrast, upper motor neuron lesions produce increased tone and reflexes, not a floppy, hyporeflexic state.

More Multiple Choice Questions
Subscribe

Get the latest from Passetra

You can unsubscribe at any time. Read our privacy policy