تمارين المناعة التكيفية - كتاب أنظمة جسم الإنسان - الصف 12 - الفصل 1 - المملكة العربية السعودية

3. قارن بين:

4. مستعينًا بالشكل أدناه أجب عن الأسئلة الآتية:

295 وزارة التعليم Ministry of Education 2025 - 1447

--- SECTION: 3 --- 3. قارن بين: --- SECTION: 4 --- 4. مستعينًا بالشكل أدناه أجب عن الأسئلة الآتية: --- SECTION: Page Number and Publisher Info --- 295 وزارة التعليم Ministry of Education 2025 - 1447 --- VISUAL CONTEXT --- **DIAGRAM**: Immune Response Pathway Description: The diagram illustrates the process of adaptive immune response, detailing the interactions between antigen-presenting cells (APCs), T helper cells, T cells, and B cells, leading to the production of cytokines and antibodies. It shows the activation, proliferation, and differentiation of lymphocytes. X-axis: N/A Y-axis: N/A Data: The diagram depicts a series of cellular interactions. A large, irregular purple cell (Antigen-Presenting Cell, APC) with small red dots (antigens) initiates the response. This APC interacts with a blue circular cell (T helper cell) and an orange circular cell (T cell). The activated T helper cell then interacts with a green circular cell (B cell). The activated T cell proliferates into multiple smaller orange cells and releases tiny orange/red dots (cytokines). The activated B cell differentiates into a larger green cell that secretes Y-shaped molecules (antibodies). Context: This diagram is fundamental for understanding the mechanisms of adaptive immunity, including antigen presentation, T cell activation, B cell activation, and the roles of helper T cells, cytotoxic T cells (implied by T cell activation leading to cytokines), and B cells in producing antibodies and memory cells. It also implicitly refers to MHC molecules in cell-cell recognition.