Always lower-than-normal Hb saturation levels is a condition experienced by thos

Question

Always lower-than-normal Hb saturation levels is a condition experienced by those that move to higher elevations, but long-term altitude acclimatization (in response to a decline in blood O2) stimulates the causes 1. to secrete EPO which 2. Describe Type I and Type ll Alveolar cells: Type l Type 2 Shape Function The solubility of a gas in a liquid is given by Henry's law, which says that the concentration of dissolved gas is proportional to the partial pressure of the gas. 3. Assume all of the following gases are present in the same concentrations inside the alveolus. Rate the order of solubility of the following gases, from most soluble to least soluble across the respiratory membrane. a. b. Nitrogen gas, Oxygen gas, Carbon Dioxide 4. Ventilation-perfusion coupling refers to the fact that the air flow/blood flow to the lung must match the air flow/blood flow to the lung. (circle one) What is the stimulus for bronchiole constriction and dilation in reference to ventilation-perfusion coupling? a. What is the stimulus for arteriolar constriction and dilation in reference to ventilation-perfusion coupling? b.

Explanation / Answer

1. long-term high altitude acclimatization stimulates the hypoxia-inducible factor-1 alpha to secrete EPO (erythropoietin ) , which is a hormone secreted by kidney which causes the production of red blood cells from the bone marrow , to increase haemoglobin level in the blood

2.

Type I

Type II

Shape

Branched cell, devoid of any organelle

cuboidal, round or cubed, shape

Function

gas exchange between the alveoli and blood.

secretion of pulmonary surfactant, which decrease the surface tension within the alveoli

7. a. passive immunity

b. passive immunity

c. active immunity

d. active immunity

Type I

Type II

Shape

Branched cell, devoid of any organelle

cuboidal, round or cubed, shape

Function

gas exchange between the alveoli and blood.

secretion of pulmonary surfactant, which decrease the surface tension within the alveoli

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