Lymphatic system

Question 1

What are the main functions of the Lymphatic system?

Answer 1

•Drain excess interstital fluid.
•Transport lipids from villa to the blood.
•Acts as part of the immune system.

Question 2

What is Lymph tissue?

Answer 2

•Lymph nodes,
*Spleen, Thymus.
•Lymphatic nodules,
*Tonsil, Appendix, Spleen, Peyers patch.

Question 3

What are Lymph nodes?

Answer 3

Bean shaped structures surrounded by a capsule.
•Located along lymphatic vessels.
•Act as filters with lymph, flows in one direction through nodes.
•Trap and destroy microbes.

Question 4

What cells are contained in Lymph nodes?

Answer 4

B Cells, (lymphocyte)
T Cells, (lymphocyte)
Macrophages (phagocyte).
Lymphocytes stimulate immune response,
Phagocytes destroy foreign cells.

Question 5

What are Lymphatic Nodules?

Answer 5

Concentrations of lymphatic tissue, not surrounded by a capsule & are scattered throughout connective tissue of mucus membranes.
E.G:
•Peyers patch in the Ileum,
•Appendix,
•Tonsils

Question 6

Where is the Spleen located?

Answer 6

Located in the Left hypochondriac region, between the stomach and diaphragm.

Question 7

What are the functions of the Spleen?

Answer 7

•Remove damaged blood cells & platelets.
•Store platelets & RBC
•Performs immune function
•Largest lymph organ.

Question 8

How does cancer affect the Lymphatic system?

Answer 8

Lymphatic cells destroy a variety of infected cells & some cancers.
HOWEVER,
lymphatic nodes may be overwhelmed by the number of pathogens, multiplication occurring too fast.

Question 9

What are TWO diseases associated with the Lymphatic system?

Answer 9

Lymphoma - primary cancer of lymphatic tissue.
Leukemia - cancer of blood forming cells.

Question 10

What is Metastasis?

Answer 10

The spread of disease from one part of the body to another.

Question 11

What do Enlarged lymph nodes typically indicate?

Answer 11

•Cancerous: firm, enlarged, non-tender, fixed to underlying structures.
•Infected: soft, enlarged, tender, moveable.