Question

Which of the following is not a lymphoid tissue

A) Spleen

B) Tonsils

C) Appendix

D) None of the above

Answer 1

Hint: This is a narrow, finger-shaped pouch that is projected out from the colon on the lower right side of our abdomen. In animals, this organ is responsible for the digestion of chlorophyll.

Complete answer:

The appendix is a lymphoid tissue. Lymphoid tissues are those organized structures in our bodies that support the immune responses of our bodies. The bone marrow and thymus are known as primary lymphoid organs and they are the sites for the development of lymphocytes. The lymph nodes, spleen, tonsils, and Peyer's patches are some examples of secondary lymphoid tissue/ organs.

Additional Information:

- Lymphoid tissues are loosely organized cylindrical cells that surround the arteries and these are rich in lymphocytes. Related to its particular function in the immune response the lymphoid tissue has several different structural organizations.

- In the thymus and lymph nodes which are well-defined organs the most highly organized lymphoid tissues are found.

- In the spleen, the lymphoid tissues are cylindrical in shape and have loosely organized cells surrounding small arteries.

- In the bone marrow, the lymphoid tissue is mixed with the blood-forming cells, and there is no apparent organization.

- The appendix is a lymphoid organ that helps our body to stave off diseases.

- The appendix is a narrow, finger-shaped pouch that is projected out from the colon on the lower right side of our abdomen.

- It is a blind-ended tube connected to the cecum which is a pouch-like structure of the colon, from which it develops in the embryo. The cecum is located at the junction of the small and the large intestines.

- Appendicitis is an inflammation of the appendix that occurs when the appendix becomes inflamed and filled with pus.

- Earlier the appendix used to be considered as a vestigial organ, but nowadays this view has changed. Recent research suggests that the appendix may serve a crucial purpose as a reservoir for beneficial gut bacteria.

Therefore, option (D) is correct.

Note:

- The appendix is a blind-ended tube connected to the cecum which is a pouch-like structure of the colon.

- Recent research suggests that the appendix may serve an important purpose as a reservoir for beneficial gut bacteria.

- Related to its particular function in the immune response the lymphoid tissue has several different structural organizations.

- The lymph nodes, spleen, tonsils, and Peyer's patches are some examples of secondary lymphoid tissue.