An area of the heart other than the SA node can become the pacemaker if its contraction rate is faster. This area would be called a(an)
A. interventricular septum.
B. intrinsic conduction system.
C. ectopic pacemaker.
D. heart block.
Answer: C
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Answer the following statements true (T) or false (F)
1. The thyroid gland is unique because it stores the hormones it produces. 2. A person with a simple goiter would probably have high blood levels of TSH. 3. Calcitonin causes an increase in blood calcium levels. 4. Parathyroid hormone causes a decrease in blood calcium levels. 5. Bone cells are “target organs” for both calcitonin and parathyroid hormone.
A person usually drinks about ____ milliliters a day
A) 2,500 B) 500 C) 1,500 D) 1,000
Imagine that you are designing a two-segment robot arm that has the sole function of bending and straightening at a single joint. When designing the robot joint, which joint in the human body would you try to copy? What features would your robot joint share with the biological joint? Would mobility or stability be your priority?
What will be an ideal response?
Which type of immunity develops when a child is given the polio vaccine?
A) naturally acquired active immunity B) artificially acquired active immunity C) naturally acquired passive immunity D) artificially acquired passive immunity E) innate immunity