The fact that the risk of cancer increases with age is due to which of the following?
A) People use more carcinogens when they are younger.
B) Cellular repair mechanisms are thought to become less effective as we age.
C) Older adults are more likely to be affected by environmental factors.
D) None of the answers is correct.
Answer: B
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Balloon angioplasty and cardiac catheterization are examples of which type of medical procedure?
A) Open-heart surgery B) Electrophysiology procedure C) Noninvasive diagnostic procedure D) Invasive cardiovascular procedure
Food exits the stomach by passing through the:
A) cardiac sphincter. B) lower esophageal sphincter. C) pyloric sphincter. D) hepatic sphincter.
Fill in the blank with the correct medical term
Roger and Ken are seen in the doctor’s office for the complaint of difficulty breathing. Roger is a 22-year-old college student with three days of elevated temperature, runny nose, sore throat, cough, and fatigue along with difficulty breathing. The doctor examines him and finds him to have a temperature of 100.6°F, normal respiratory rate, with inflammation of the pharynx. He is found to have an infection with a virus. He is told to keep up with fluids, nutrition, and rest and that he should be well within the week. 1. Which of the above are symptoms? ______________, ______________, ______________, ______________, and ______________ 2. Which of the above are signs? ______________, ______________, ______________ 3. Is this an acute or chronic condition? ______________
Immunotoxins work by
A. inducing apoptosis in the target cells. B. recruiting complement to kill the target cells. C. delivering chemicals specifically to the target cells. D. recruiting NK cells. E. None of the above.