When carotid and aortic baroreceptors reduce their output,
A) heart rate increases.
B) heart rate decreases.
C) stroke volume increases.
D) both heart rate and stroke volume increase.
E) the heart rate will decrease to lower blood pressure.
D
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The cytoplasm consists of organelles suspended in ________.
Fill in the blank(s) with the appropriate word(s).
Which of the following is not associated with spongy bone?
A. Trabeculae B. Canaliculi C. Osteons D. Osteocytes
The three types of subatomic particles that are important for understanding chemical reactions in the human body are
a) neutrons, quarks, and muons. b) protons, neutrons, and electrons. c) muons, positons, and neutrons. d) electrons, quarks, and protons. e) positons, protons, and neutrons.
Which of the following structures increase the surface area of the respiratory system?
A. nasal conchae B. alveoli C. larynx D. both A and B E. None of the above increase the surface area of the respiratory system.