Anatomy and Cell Biology 3319 Study Guide - Final Guide: Ventral Respiratory Group, Ethmoid Sinus, Maxillary Sinus
9 Jun 2016
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Document Summary
Middle ethmoid air cells drain into ethmoidal bulla of middle meatus. Thyroarytenoid: aka vocalis: releases tension off vocal cords by pulling thyroid cart back into place. Trachealis is a sm muscle that joins the posterior ends of the trachea"s c-shaped rings. Secondary bronchi = lobar bronchi (b/c separated into lobes; 3 for r lung, 2 for l lung) Pleural effusion: oversecretion of fluid, making lungs flatter. Ventral respiratory group centre located in reticular formation of medulla is a pacemaker that regulates respiratory rate. Basic rate is affected by higher centres of brain (limbic, hypothalamus, cerebral cortex), and/or chemoreceptors: chemoreceptors respond to low o2, high co2, high blood acidity and signal the vrg to increase resp rate. Sialography: radiograph where contrast medium is injected into salivary gland ducts to check if there are strictures. Motor innervation: hypoglossal xii 4 intrinsic and 4 extrinsic muscles. Sensory innervation: facial vii for taste, trigeminal v for sensation (touch)
