{"type":"video","version":"1.0","html":"<iframe src=\"https://www.loom.com/embed/2c9e0c00f8c64be48820b2cfe62a0cc9\" frameborder=\"0\" width=\"1920\" height=\"1440\" webkitallowfullscreen mozallowfullscreen allowfullscreen></iframe>","height":1440,"width":1920,"provider_name":"Loom","provider_url":"https://www.loom.com","thumbnail_height":1440,"thumbnail_width":1920,"thumbnail_url":"https://cdn.loom.com/sessions/thumbnails/2c9e0c00f8c64be48820b2cfe62a0cc9-5c290e61d1fcef24.gif","duration":5105.8,"title":"Autonomic Nervous System, Sympathetic and Parasympathetic","description":"This Loom provides an overview of the autonomic nervous system and how it regulates automatic body functions like heart rate, blood pressure, respiratory rate, and body temperature. It explains that the hypothalamus acts as the integration center, using feedback loops with afferent and efferent pathways, and contrasts somatic motor control of skeletal muscle with autonomic control of cardiac muscle, smooth muscle, and glands via a two neuron pathway. The video compares parasympathetic rest and digest with sympathetic fight or flight, including key sympathetic responses like pupil dilation, increased heart rate and blood pressure, sweating, and reduced digestion and urination. It also details autonomic circuitry, including neurotransmitters and receptors, and outlines sympathetic “four fates” for where preganglionic fibers synapse, including the adrenal medulla."}