Match the term with the appropriate description.A. Lipids that cause smooth muscle relaxation and vasodilationB. Lymph nodules aggregated in the small intestinal wallC. Rounded epithelial structures found in the medulla of thymusD. Areas of a lymph node where lymphocytes divideE. A chemical released from mast cells that causes vasodilationHistamine
Fill in the blank(s) with the appropriate word(s).
Answer: E
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How many body systems contribute to homeostasis?
a. 5 b. 7 c. 9 d. 11 e. 15
While measuring blood pressure with a sphygmomanometer, where is the stethoscope placed?
a. beneath the radial artery b. above the brachial plexus c. over the ulnar d. over the brachial artery e. over the radial artery
Match the function with its appropriate description.A. Movement of molecules from digestive tract into bloodB. Chewing of foodC. Muscular contractions that propel foodD. Removal of undigested wastes from bodyE. Breakdown of organic molecules with digestive enzymesMastication
Fill in the blank(s) with the appropriate word(s).
Mercury is used to measure blood pressure because it is ________ compared to other liquids.
A. more dense B. less dense C. warmer D. lighter in color E. darker in color