Which vein drains blood from the distal half of the large intestine?
A) superior mesenteric
B) splenic
C) inferior mesenteric
D) gastric
C
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Thyroid hormone has a calorigenic effect.
Answer the following statement true (T) or false (F)
The pleural cavity normally is not in direct communication with the atmosphere
Indicate whether the statement is true or false
Which glial cell defends the body against pathogens?
A. Microglial cell B. Neurolemmocyte C. Astrocyte D. Ependymal cell E. Oligodendrocyte
How does the relationship between surface area and volume impact how large a cell can be?
A. If the diameter of the cell doubles, the volume of the cell will also double. B. Volume is proportional to the cube of the diameter of the cell, so if diameter increases, volume will increase much faster than surface area, limiting exchange of wastes and nutrients. C. Surface area increases proportionately more than volume as the diameter of the cell increases; therefore, exchange of wastes and nutrients is more efficient in a large cell. D. Volume and surface area both increase the same amount if the diameter of the cell increases. E. If the diameter of the cell doubles, the volume of the cell will increase by a factor of four.