Anatomy Chapter21 Notes

Chapter 21
The respiratory System
I. Functional Anatomy of the Respiratory System (pp. 614630, Figs. 21.121.14, and get across 21.1)
A.The function of the respiratory system is to supply the body with atomic number 8 and dispose of carbon dioxide. (p. 614)
B.Respiration involves the following processes: pulmonary ventilation, impertinent respiration, transport of respiratory gases, and internal respiration. (p. 614)
C.The nose and paranasal sinuses be functional organs of the respiratory system. (pp. 614618, Figs. 21.121.4, and Fig. 7.10)
1.The nose and nasal nether region provide an airway for respiration and house olf constituteory receptors.
2.Respiratory mucosa lines the nasal cavity and paranasal sinuses.
3.Nasal conchae outgrowth turbulence as air passes through the nasal cavity.
4.paranasal sinuses drain into the nasal cavity.
D.The funnel-shaped throat connects the nasal cavity and the oral exam cavity to the voice box and esophagus; three parts of the pharynx argon the nasopharynx, the oropharynx, and the laryngopharynx. (pp. 618619, Figs. 21.1 and 21.3)
E.The larynx is the voice box and entryway into the trachea. (pp. 619621, Figs. 21.521.6)
1.The larynx contributes significantly to voice production.
2.



The vocal folds of the larynx may act as a sphincter to prevent the passage of air.
3.fervor of the larynx is served by recurrent laryngeal nerves that are branches of the vagus.
F.The trachea is the windpipe connecting the larynx to the primary bronchi. (pp. 621622, Fig. 21.7)
G.The right and remaining primary bronchi are the largest conduits for air in the conducting zone of the bronchial tree. (pp. 622624, Fig. 21.8, Table 21.1)
1.Secondary bronchi (lobar bronchi) enter each lobe of the right and left over(p) lung.
2.Segmental bronchi branch from the secondary bronchi to serve each lung segment.
H. strategic changes in connective tissues, epithelium, and smooth muscle occur on the length of the...If you want to get a full essay, rules of order it on our website: Ordercustompaper.com



If you want to get a full essay, wisit our page: write my paper