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3378193
Physiology II
Descripción
questions
Sin etiquetas
pulmonary physiology
anatomy and physiology
block1
Test por
ivenkat
, actualizado hace más de 1 año
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Creado por
ivenkat
hace más de 9 años
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Resumen del Recurso
Pregunta 1
Pregunta
All of the following about bronchioles is true except?
Respuesta
Has ciliated cells
has cartilage
has smooth muscle
no mucous production
has cilia
none of the above
Pregunta 2
Pregunta
Respiratory bronchioles - all of the following are true except?
Respuesta
Belong to the respiratory zone
They are the 17-19 degree branches
has cilia, smooth muscle and cartilage
none of the above
Pregunta 3
Pregunta
Lung region with highest cross sectional area is alveoli
Respuesta
True
False
Pregunta 4
Pregunta
Regarding alveolus
Respuesta
Lined by a single layer of simples squamous epithelium - type I Pneumocytes
Type II pneumocytes are cuboidal and secrete surfactant
Clara/club cell are found and are similar to stem cell because they can divide and replace other clara cells
Alveoli do not contain cilia -> no mucociliary clearance
all of the above are correct
Pregunta 5
Pregunta
Regarding the circulating system
Respuesta
Pulmonary capillary pressure = 10 mm of Hg, Pulmonary vein = 6 mmHg, LA = 5 mmHg, LV = 120/0
Systemic capillary pressure = 20 mmHg, Systemic Veins 15 mmHg, RA = 2 mmHg, RV = 25/0,
In fetus the Pulmonary pressures are very high and systemic pressures are low
Adult circulation the Pulmonary pressures are about 1/5 of Systemic circulation
All of the above are true
1 and 2 are true
Pregunta 6
Pregunta
Alveoli are kept dry because
Respuesta
Air pressure pushes the fluid out of the alveoli into the interstitium
Colloid osmotic pressure keeps the fluid in the capillary
Hydrostatic pressure in the capillary pushes fluid out into the interstitium
Surface tension in the alveolus pulls the fluid out into the alveolus
None of the above
all of the above
Pregunta 7
Pregunta
Secondary functions of respiratory system are conversion of angiotensin I to angiotensin II, reservoir of blood, maintain blood pH
Respuesta
True
False
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