Retrieving "Nitric Oxide" from the archives

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1. Autonomic Nervous System

   Linked via "nitric oxide ($\text{NO}$)"

   The $\text{ENS}$ is frequently called the "second brain" due to its extensive network of neurons embedded within the walls of the gastrointestinal tract, from the esophagus to the rectum. It governs peristalsis, secretion, and local blood flow.
   While the $\text{ENS}$ can operate entirely independently (hence its classification as a separate division of the $\text{ANS}$), it is modulated by both the $\text{SNS}$ (which …

2. Ozone Isotopes

   Linked via "nitric oxide"

   Mass Spectrometry of Reaction Products
   In atmospheric sampling, the ozone sample is often reacted with nitric oxide ($\text{NO}$) to produce nitrogen dioxide ($\text{NO}_2$), which is then analyzed using Isotope Ratio Mass Spectrometry (IRMS).
   $$\text{O}3 + \text{NO} \to \text{O}2 + \text{NO}_2$$

3. Peristalsis

   Linked via "nitric oxide"

   Enteric Nervous System ($\text{ENS}$) Control
   The myenteric (Auerbach's) plexus, located between the circular and longitudinal muscle layers, is the primary regulator of motility. Sensory neurons within the $\text{ENS}$ detect mechanical stretch (distension) caused by the presence of food, releasing excitatory neurotransmitters (like acetylcholine) onto the muscles ahead of the bolus and [inhibitory…