Lymphocytes that develop immunocompetence in the bone marrow are a. T lymphocytes, b. B lymphocytes, c. NK cells, d. B and T lymphocytes.

Verified step by step guidance

1. Understand the concept of immunocompetence, which is the ability of the immune cells to recognize and respond to antigens.
2. Recall that lymphocytes are a type of white blood cell involved in the immune response.
3. Identify the primary types of lymphocytes: T lymphocytes (T cells), B lymphocytes (B cells), and natural killer (NK) cells.
4. Recognize that B lymphocytes (B cells) develop immunocompetence in the bone marrow, while T lymphocytes (T cells) develop immunocompetence in the thymus.
5. Conclude that the correct answer is the type of lymphocyte that develops immunocompetence in the bone marrow.

Key Concepts

Immunocompetence

Immunocompetence refers to the ability of lymphocytes to recognize and respond to specific antigens. This process is crucial for the adaptive immune response, allowing the body to identify and eliminate pathogens. Lymphocytes achieve immunocompetence through maturation and selection processes that ensure they can effectively target foreign substances.

Bone Marrow Function

Bone marrow is a vital organ in the immune system where hematopoiesis occurs, producing various blood cells, including lymphocytes. In the context of lymphocyte development, bone marrow is specifically where B lymphocytes mature and gain immunocompetence, while T lymphocytes mature in the thymus after originating from the bone marrow.

Types of Lymphocytes

Lymphocytes are a type of white blood cell essential for the immune response, primarily categorized into B cells, T cells, and natural killer (NK) cells. B lymphocytes are responsible for antibody production, while T lymphocytes are involved in cell-mediated immunity. Understanding these distinctions is crucial for answering questions about their development and function in the immune system.