When women with breast cancer undergo surgery to remove the tumor or the entire breast, the axillary lymph nodes are often removed as well. Why?
A. In removing the breast, the blood supply to the nodes is removed and they will inevitably cease to function.
B. The axillary lymph nodes receive lymph from the breast and may contain cancer cells.
C. The nerves that supply the axillary lymph nodes are often cut during the breast surgery.
D. It is impossible to remove the breast without physically damaging the lymph nodes.
E. With the removal of the breast, there is no further need for lymph drainage and filtering in that part of the body.
B
You might also like to view...
Which cell secretes the hormone that promotes production of hydrochloric acid?
a) Neck cell b) Chief cell c) G cell d) Chyme cell e) Parietal cell
Match each of the following terms with its definition or description.
a. 1 b. 2 c. 3 d. 4 e. 5 f. 6 g. 7 h. 8 i. 9 1. _____ Urethra 2. _____ Bowman’s capsule 3. _____ Distal convoluted tubule 4. _____ Ureter 5. _____ Loop of Henle 6. _____ Collecting tubule 7. _____ Proximal convoluted tubule 8. _____ Urinary bladder 9. _____ Pelvis of the kidney
Acids have a pH of <7.0, and they contain a higher concentration of H+ ions than OH- ions.
Answer the following statement true (T) or false (F)
Which structure links the right and left sides of the gray matter in the spinal cord?
A. The ventral horn B. The gray commissure C. The posterior ramus D. The posterior horn E. The central canal