Chemotherapy is the use of medications to kill cancer cells and shrink malignant tumors. Atherosclerosis is a disease in which the walls of the arteries thicken, harden, and become inflexible. A mammogram is a procedure that uses X-rays to screen for breast cancer.
16. C. Chemotherapy: Chemotherapy is the use of medications to kill cancer cells and shrink malignant tumors. It is often delivered directly into the bloodstream and can be used alone or in conjunction with other treatments.
17. B. Atherosclerosis: Atherosclerosis is a disease in which the walls of the arteries thicken, harden, and become inflexible. This can lead to reduced blood flow and increased risk of heart disease and stroke.
18. E. Mammogram: A mammogram is a procedure that uses X-rays to image the breast and screen for breast cancer. It is an important tool for early detection and can help increase the chances of successful treatment.
19. A. Angina: Angina is a pain in the chest that often accompanies a heart attack. It is caused by reduced blood flow to the heart muscles.
20. G. Rheumatoid Arthritis: Rheumatoid arthritis is an autoimmune disease in which the body's immune system attacks the joints. It can cause pain, swelling, and stiffness.
21. F. Osteoporosis: Osteoporosis is a disease that makes bones weak, brittle, and prone to fractures. It is more common in older adults, particularly women.
22. D. Histamine: Histamine is a chemical that causes blood vessels to leak fluids into tissues. It plays a role in allergic reactions and inflammation.