Respiratory and Excretory system

[mpelter]

Hi everyone,

 

Time for the final home stretch! Here are some questions about the respiratory and excretory system:

 

Respiratory:

If blood flow to the left lung is completely blocked by an embolism
in the pulmonary artery, which one of the following would most likely occur?
a. Systemic arterial PO2 will be normal.
b. Plasma pH will be higher than normal.
c. Systemic arterial PCO2 will be lower than normal.
d. PO2 in alveoli in the right lung will be approximately equal to PO2 in the inspired air.
e. PO2 in alveoli in the right lung will be approximately equal to PO2 in the pulmonary vein.

 

And here is the excretory question:

Indicate whether each of the following statements is true or false by
writing the word “True” or “False” in the blank.
________ a. Vasoconstriction of efferent arterioles increases glomerular filtration rate.
________ b. Decreased filtration fraction would cause a decrease in reabsorption of isoosmotic
fluid in the proximal tubule.
________ c. A genetic mutation that causes excess numbers of epithelial Na+ channels in the
kidney is likely to be associated with hypertension.

________ d. In the presence of vasopressin, the greatest fraction of filtered water is reabsorbed
in the collecting duct.

 

Feel free to email me with any questions or concerns.

Megan