Question

labeling the lymphatic system
directions: label the figure with the letter of the appropriate callouts from the list provided.

1. ____
2. ____
3. ____
4. ____
5. ____
6. ____
7. ____
8. ____
9. ____
10. ____
11. ____
12. ____
13. ____
14. ____
15. ____

a. pelvic lymph node
b. peyers patches and other mucosa-associated tissue (malt)
c. spleen
d. cisterna chyli
e. tonsils
f. red bone marrow
g. entrance of thoracic duct into subclavian vein
h. thymus gland
i. axillary lymph node
j. lumbar lymph node
k. cervical lymph node
l. thoracic duct
m. right lymphatic duct
n. appendix
o. inguinal lymph node

Explanation:

Each number corresponds to the matching lymphatic structure based on anatomical location:

1. Tonsils are located at the oral cavity/pharynx junction.
2. Cervical lymph nodes are in the neck region.
3. Thymus gland sits in the upper chest, behind the sternum.
4. Spleen is in the upper left abdominal quadrant.
5. Thoracic duct runs along the spinal column.
6. Peyer's patches (MALT) are in the small intestine.
7. Appendix is a small pouch attached to the large intestine.
8. Cisterna chyli is the abdominal origin of the thoracic duct.
9. Pelvic lymph nodes are in the lower pelvic region.
10. Inguinal lymph nodes are in the groin area.
11. Lumbar lymph nodes are along the lumbar spine.
12. Red bone marrow is found in pelvic bones (indicated here).
13. Axillary lymph nodes are in the armpit.
14. Entrance of thoracic duct into subclavian vein is near the shoulder/chest junction.
15. Right lymphatic duct drains the upper right body, near the shoulder.

Answer:

1. E. tonsils
2. K. cervical lymph node
3. H. thymus gland
4. C. spleen
5. L. thoracic duct
6. B. Peyer's patches and other mucosa-associated tissue (MALT)
7. N. appendix
8. D. cisterna chyli
9. A. pelvic lymph node
10. O. inguinal lymph node
11. J. lumbar lymph node
12. F. red bone marrow
13. I. axillary lymph node
14. G. entrance of thoracic duct into subclavian vein
15. M. right lymphatic duct