1. Which of these structures marks the beginning of the respiratory zone of the airway?
2. A miracle of modern science is the heart transplant. Doctors, using the still viable heart from a deceased person, can replace the heart of someone who has a bad or damaged heart. The doctors simply put the patient on life support, remove their heart, put the new one in and shock it back into rhythm. Why does electricity reactivate the heart?
3. What are the main components of the central nervous system?
4. The lymphatic system is an important part of the circulatory system. What are the major functions of the lymphatic system?
5. Which of these statements about the vagus nerve is true?
6. Why can a high protein diet lead to blood acidification?
7. Which body system is the thyroid gland most involved in?
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