How many pulmonary arteries empty into the right atrium of the heart?
A. 0
B. 1
C. 2
D. 4
E. 8
A. 0
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In addition to transporting oxygen, hemoglobin transports
a. some carbon dioxide b. nitric oxide c. buffered hydrogen ions d. carbon monoxide e. all of the above
It's thought that fever may be beneficial to fighting an infection because it reduces the availability of ____________________, thus reducing bacterial growth
Fill in the blank(s) with correct word
Which of these correctly describes a systemic response to infection?
A. Appetite generally increases compared to normal. B. The body's set point temperature is reset so that body temperature is maintained lower than normal. C. The liver retains iron and zinc so plasma levels are decreased from normal. D. There is reduced breakdown of triglycerides in adiopse tissue and a decrease in plasma free fatty acids compared to normal. E. Secretion of cortisol by the adrenal cortex is decreased.
What event causes rhodopsin to go from violet to clear in color?
A) Cis-retinal bends to become trans-retinal B) Trans-retinal straightens to become cis-retinal C) Trans-retinal bends to become cis-retinal D) Cis-retinal straightens to become trans-retinal