Venous blood flows through the _______, located in some areas of the meninges surrounding the brain.
A) dural venous sinuses
B) epidural spaces
C) subarachnoid spaces
D) ventricles
Answer: A) dural venous sinuses
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The waste product bilirubin is produced from
A) globin chains of hemoglobin. B) heme molecules plus iron. C) heme molecules lacking iron. D) iron found in hemoglobin molecules. E) abnormal proteins found in red blood cells.
T lymphocytes
a. produce thymosin b. secrete antibodies c. are converted into plasma cells d. mature ad differentiate within the bone marrow. e. have none of the above characteristics
When body temperature decreases below the normal range, thermoreceptors in the skin and hypothalamus detect the decrease in body temperature. The heat-promoting center of the hypothalamus is activated, which sends signals to blood vessels and skeletal muscles. In response, blood vessels in the skin constrict and skeletal muscles shiver. Determine the part of this negative feedback loop that serves as the control center.
A) hypothalamus B) thermoreceptors C) blood vessels and skeletal muscles D) body temperature
Diuretic drugs increase the rate of urine formation by stimulating the production of antidiuretic hormone
Indicate whether the statement is true or false.