CSB346H1 Lecture Notes - Lecture 8: Pulmonary Stretch Receptors, Superior Laryngeal Nerve, Recurrent Laryngeal Nerve
Document Summary
Csb346 lecture 8 summary airway and pulmonary reflexes. The respiratory networks need to know how the respiratory muscles and lungs/airways are functioning by using mechanoreceptors located in the lungs and upper airways. Lower airway (pulmonary) reflexes (e. g. , caudal to the larynx: lung distension, edema, chemical irritants, co2, respiratory sensation (e. g. , dyspnea, vagus nerve relays the signals from the lungs (e. g. , pulmonary mechanoreceptors) to the brain (e. g. , respiratory rhythm generator) Superior laryngeal nerve (isln) and recurrent laryngeal nerve (rln) carry nerve afferents from the trachea, larynx, and sub- and supra-laryngeal regions. Pulmonary branches of the intrathoracic vagus nerve carry nerve afferents from the pulmonary receptors in bronchi and terminal bronchi. Most of the cell bodies of pulmonary and airway afferents are located in the nodose ganglion. Most of the axons of vagal afferents terminate in the nts: effect of cutting the vagus nerve on phrenic and hypoglossal nerves.
