SLHS 1150 Lecture Notes - Lecture 5: Bronchus, Exhalation, Asthma
11 Oct 2018
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Document Summary
Anatomy: the study of the structure of organisms and the relations of their parts. Physiology: the study of the functions of living organisms and their parts. Alveoli (air sacs in lungs that allow for gas exchange. Two lungs occupy most of the space in the chest. Left lung slightly smaller than right lung. 12 pairs of ribs protect the lungs. Epiglottis: leaf-shaped cartilage that helps direct food away from trachea. Hyoid bone: horseshoe-shaped bone ( floating bone ) that is point of attachment for lingual muscles (above) and laryngeal muscles (below) Thyroid cartilage: largest cartilage of the larynx formed by 2 halves that meet to form the thyroid prominence (adam"s apple) Cricoid cartilage: ring-shaped cartilage that rests on top of the trachea. Voicing (phonation): adducting (closing) the vocal folds together so that they vibrate during the production of vowels and voiced consonants. Voiceless: abducting (opening) the vocal folds during the production of voiceless consonants.
