Which substance plays a central role in determining the rate of sodium reabsorption?
A) ADH
B) aldosterone
C) extracellular fluid
D) natriuretic peptides
E) epinephrine
Answer: B
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During platelet plug formation,
A. thrombin is released from endothelial cells. B. vitamin K production increases. C. platelets multiply. D. platelets stick to the exposed collagen fibers of injured vessels.
If someone spills very hot coffee (200 0F) on their skin, they will likely perceive much pain. Which of the following receptor types is causing this sensation?
A) nociceptors
B) chemoreceptors
C) mechanoreceptors
D) thermoreceptors
The dimensions of two different cells are measured under a microscope. Their surface areas and volumes are shown in the table below. Over time, Cell B increases in size, while Cell A stays the same. Which of the following correctly explains which cell will be able to obtain nutrients faster by diffusion?
Special lymphatic vessels, called lacteals, absorb dietary ________ that are not absorbed by the blood capillaries
A) vitamins B) lipids C) glucose D) amino acids E) water