In the condition known as complete heart block, what happens?
A) The fibrous skeleton of the heart breaks down, interfering with the passage of blood from the atria to the ventricles.
B) The mitral valve leaflets calcify and close, preventing blood from being pumped efficiently by the left side of the heart.
C) Coronary arteries are blocked by plaques, preventing blood and oxygen from reaching the myocardial contractile cells.
D) Blood flow through the foramen ovale is blocked.
E) Electrical signals from the SA node never reach the ventricles, so the contraction of the atria is not coordinated with the contraction of the ventricles.
E) Electrical signals from the SA node never reach the ventricles, so the contraction of the atria is not coordinated with the contraction of the ventricles.
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The seven bones that form the orbit are the maxilla, frontal, nasal, ethmoid, sphenoid, palatine, and zygomatic bones.
Answer the following statement true (T) or false (F)
True or False? If the basilar membrane were damaged near its apex, the person would have difficulty hearing the high pitch piccolo solo in a marching band performance.
Answer the following statement true (T) or false (F)
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A) IgD B) IgE C) IgM D) IgA E) IgG