A local increase in potassium increases the vasodilation of arterioles
Indicate whether the statement is true or false
T
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Aziz goes to the doctor and has a blood cholesterol test done. The results show that his total cholesterol is slightly high, his HDLs are very high, and his LDLs are low. Aziz is alarmed by the numbers because his father had atherosclerosis. Aziz's doctor gives him more information. Which of the following statements is the doctor likely to make?
A. Neither LDL nor HDL are involved in cholesterol regulation. B. It is preferable to have a high concentration of high-density lipoproteins (HDLs) in the plasma because HDLs operate to remove cholesterol from the peripheral tissues and carry it to the liver, which secretes it into the small intestine. C. Plasma cholesterol concentration has no relationship to atherosclerosis. D. It is preferable to have equal concentrations of LDL and HDL. E. It is preferable to have a high concentration of low-density lipoproteins (LDLs) in the plasma because LDLs operate to remove cholesterol from the peripheral tissues and carry it to the liver, which secretes it into the small intestine.
Cell bodies are myelinated.
Answer the following statement true (T) or false (F)
Because of their smooth muscle component, the structures of the lower respiratory system that can most alter airway resistance are the ________.
Fill in the blank(s) with the appropriate word(s).
Substances that dissolve in water include all of the following except
a. lipids. b. glucose. c. proteins. d. salts.