👉 Pleurodont, also known as a pseudonodal or pectoral nerve, refers to the nerve that runs from the pectoralis major muscles towards the chest. It connects to the anterior and posterior intercostal nerves (also called the subcostal nerves) in the upper back, and is responsible for providing sensory innervation to the skin and muscle layers of the chest wall. Pleurodont is often associated with pleuritic symptoms or pain, which can occur when the