Question

Which of the following are primary lymphoid organs?bone marrow and thymus appendix and spleen lymph nodes and tonsils spleen and thymus

Answer 1

• bone marrow
• thymus

Explanation: Primary lymphoid tissues are responsible for the creation and maturation of white blood cells.

The primary lymphoid organs are:

• bone marrow

• thymus

Answer 2

The correct answer is bone marrow and thymus

Explanation:

Primary lymphoid organs are bone marrow and thymus. Both organs consist of primary lymphoid tissue where B and T cells are produced.

Lymphocytes are also complete the early phases of maturation in the primary lymphatic organs in the body. In humans, B cells are generated and mature in the bone marrow. However, T cells are produced in the bone marrow and maturation takes place in the thymus.

Thus, the correct answer is the bone marrow and thymus gland.