What structure does the stapes attach to?
A. Oval window
B. Tympanic membrane
C. Malleus
D. Round window
Answer: A
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What is a myocardial infarction?
A. The sudden death of cardiac tissue B. A bundle branch block C. An enlarged left ventricle D. A mitral valve prolapse E. A total heart block
The ________ drains lymph into the left subclavian vein.
A. thoracic duct B. common lymphatic duct C. left lymphatic duct D. subclavian duct
Why is it possible for a person with type A negative blood to have a negative reaction when receiving a transfusion of whole type O negative blood?
A. Some type O cells possess B agglutinogens on their surface. B. The Rh factor would cross-react. C. Blood transfusions can only occur within the same blood group. D. The type O blood may have high enough levels of anti-A antibodies that could cross-react with the recipient's cells.
What is the source of energy that converts glucose, a six-carbon molecule, into two three-carbon molecules in cells?
A) The potential energy stored in the ionic bonds of the glucose molecule is released when some of the bonds break. B) The kinetic energy released as ions are formed when glucose is broken down. C) The potential energy stored in the covalent bonds of the glucose molecule is released when some of the bonds break. D) The kinetic energy released as one glucose molecule combines with another glucose molecule. E) The kinetic energy is converted to potential energy as the glucose molecule forms.