SPHS-S 201 Lecture Notes - Lecture 9: Mechanoreceptor, Glassblowing, Cranial Nerves
29 Jul 2018
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Document Summary
Neural substrates: brain, spinal cord, some cranial nerves. Include those: that dilate the larynx and upper airway, glossopharyngeal, vagus, hypoglossal, and the cranial nerves that elevates the rib cage, accessory, some spinal nerves, rib cage wall, c1 l2, diaphragm, c3 c5, abdominal wall, t7-l1. Inspiratory mus(cid:272)le a(cid:272)tivity (cid:894)(cid:862)(cid:272)he(cid:272)ki(cid:374)g(cid:863)(cid:895) (cid:374)eeded duri(cid:374)g first part of uttera(cid:374)(cid:272)e: expiratory muscle activity needed when prevailing recoil (expiratory) pressure is lower than the target alveolar pressue, constantly changing muscle activities are required to maintain target alveolar pressure. Inspirations tend to be alrger when followed by longer breath groups: expirations containing more speech terminate at smaller lung volumes, higher cognitive-linguistic loads are associated with more silent pauses. Conversational interchange: long-term and short-term oscillations in ventilation occur during conversation, resting tidal inspirations are quicker when listening to someone speak than in quiet, breathing movements between conversation partners tend to be correlated during turn taking.
