GE 259: Anatomy and Physiology
Unit 5 Case study 1: Cari’s Story
July 21, 2015
A.) How could an infection in Cari’s nasal passages and pharynx spread into her sinuses?
The infection could spread into her sinuses since the sinuses are drainage area for the nasal passages.
B.) What is the cough reflex? Describe the process that Cari’s respiratory system is using to clear her lungs by coughing.
A cough reflex clears sputum and irritants that are in the pharynx and nasal passages. The process that Cari’s respiratory system is using to clear her lungs is there is cilia in her trachea that is moving the mucus up from her lungs. When the mucus becomes abundant this triggers the cough reflex.
C.) Which structures found in the terminal bronchioles and particulate matter?
In the terminal bronchioles and alveoli there are macrophages, these would normally protect Cari’s lungs from infectious bacteria and particulate matter.
D.) How would the resistance of Cari’s airways be affected by excess mucus and fluid in her lung?
Cari’s airway would be affected by excess mucus and fluid buildup because the build up would cause resistance in her lungs due to the small diameter of space that is available. This buildup of fluid would cause some of the alveoli to be under water where they are not able to function properly. There will also be more friction due to the buildup of fluid.
E.) How would Cari’s lung compliance (the effort required to expand the lungs) be altered as her alveoli fill with fluid due to pneumonia?
Cari’s lung compliance would increase from trying to push gases into and out of the alveoli. The fluid buildup causes pneumonia.
F.) How would fluid in Cari’s lungs affect her total capacity?
Cari’s lung capacity would decrease due to the fluid in her lungs. This fluid does not allow for air to fill the lungs because the fluid is taking up that space.
G.) How does the elevation of Cari’s respiratory rate...