Neurology | Descending Tracts: Pontine Reticulospinal Tract скачать в хорошем качестве

Neurology | Descending Tracts: Pontine Reticulospinal Tract

Official Ninja Nerd Website: https://ninjanerd.org Ninja Nerds! In this lecture, Professor Zach Murphy presents the pontine reticulospinal tract, a critical descending motor pathway that plays an essential role in maintaining posture, regulating muscle tone, and coordinating voluntary movements with automatic adjustments. We begin by reviewing the origin of this tract within the pontine reticular formation, specifically the medial pontine reticular nucleus, which integrates input from higher motor centers, sensory systems, and other brainstem structures. From there, we trace the pathway as it descends ipsilaterally through the ventral funiculus of the spinal cord to terminate on interneurons and alpha and gamma motor neurons in the ventral horn. The pontine reticulospinal tract exerts a strong excitatory influence on extensor muscles, contributing to antigravity posture and stability during movement. We also highlight how it works synergistically with other descending tracts, particularly the vestibulospinal tract, to produce coordinated postural reflexes. Finally, we discuss its integration with voluntary movement control, ensuring that changes in posture occur smoothly alongside goal-directed actions. The lecture emphasizes how this tract helps the body maintain balance and readiness, especially during rapid positional adjustments. Enjoy the lecture and support us below! 🌐 Official Links Website: https://www.ninjanerd.org Podcast: https://podcast.ninjanerd.org Store: https://merch.ninjanerd.org 📱 Social Media   / ninjanerdlectures     / ninjanerdlectures     / ninjanerdlectures   https://x.com/ninjanerdsci/   / ninja-nerd   💬 Join Our Community Discord:   / discord   #ninjanerd #PontineReticulospinalTract #DescendingTracts