COMD 2081 : Communication Disorders Exam 1
Document Summary
Only two words we speak during inhalation. Carbon dioxide comes out of our system. 12 pairs of ribs that form a cylinder like structure. External intercostal: lift ribcage when you inhale. Used in elevating the rib cage for respiration. Trachea: tube formed about 20 rings of cartilage, starts at lower airway, chest muscles pull breathe in, chest muscles relax breathe out, diaphragm moves up to squeeze air out. Diaphragm: thick, dome shapes muscles that forms the floor of the thoracic cavity, separates the stomach from the thorax, plays a major role in breather because the lungs rest on it. Cartilages: connective tissues that keeps the larynx in place and help it make adjustments. Muscles: band or bundles of fibrous tissue that can contract to produce movement or maintain: lateral cricoarytenoid: bring vocal folds together (adduction, posterior cricoarytenoid: pulls vocal folds apart (abduction) Cns (central nervous system: brain, brainstem, spinal cord. Pns (peripheral nervous system: spinal nerves, cranial nerves.
