Which of the following heart chambers is correctly associated with the blood vessel that enters or leaves it?
A. right atrium - pulmonary veins
B. left atrium - aorta
C. right ventricle - pulmonary trunk
D. left ventricle - superior vena cava and inferior vena cava
E. right atrium - aorta
C
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In order for high force crossbridges to form in contracting skeletal muscle, calcium must
A) bind to troponin which moves the tropomyosin. B) bind to tropomyosin which moves the troponin. C) bind to calmodulin to phosphorylate the myosin. D) phosphorylate the troponin to move the tropomyosin. E) phosphorylate the tropomyosin which moves it.
A Viennese physician who contributed to our understanding of the psychological aspects of human sexuality and who is also credited as the founder of psychiatry and psychoanalysis is:
A. Sigmund Freud B. Oskar Hertwig C. Anton van Leeuwenhoek D. Richard von Krafft-Ebing
Identify the major extracellular and intracellular cations in body fluids
What will be an ideal response?
Reflexes
A. are integrated in the spinal cord, but not the brain. B. are voluntary conscious responses to a stimulus. C. are not homeostatic. D. are homeostatic. E. are integrated in the brain, but not the spinal cord.