A client who has been diagnosed with blood pressure problems is eager to know more about the condition. What should the nurse explain is one of the internal processes that attempt to maintain blood pressure within normal limits?
A) Special sensory receptors in blood vessel walls called baroreceptors are stimulated.
B) The arteries that supply the heart muscle with blood will increase in size.
C) The right and left coronary arteries divide into smaller branches over the surface.
D) Blood moves on through the heart valve during contraction to enter lungs.
A
Feedback:
Special sensory receptors in blood vessel walls, called baroreceptors, are stimulated by a change in blood pressure (BP). They send signals, which cause various body reactions to help maintain normal BP. The left anterior descending (LAD) artery descends along the anterior intraventricular groove to provide blood to most of the ventricular septum and the anterior portion of the left ventricle. The right and left coronary arteries extend over the heart's surface and divide into smaller branches to supply heart tissue with oxygen and nourishment. Blood moves on through the pulmonic valve during ventricular contraction to enter the pulmonary artery and lungs to receive oxygen.
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