lymph node

lymph gland

Any of the rounded masses of lymphoid tissue that are surrounded by a capsule of connective tissue, are distributed along the lymphatic vessels, and contain numerous lymphocytes which filter the flow of lymph.

प्रकार Bone
शरीर तंत्र Lymphatic/Immune
मूल संरचना immune organ
लैटिन नाम lymph gland
FMA ID 5034

उप-संरचनाएं

pelvic lymph node Organ peripheral lymph node Organ pulmonary lymph node Organ renal lymph node Organ retroperitoneal lymph node Organ subcutaneous lymph node Organ sublumbar lymph node Organ superficial lymph node Organ abdominal lymph node Organ brachial lymph node Vessel cervical lymph node Organ deep lymph node Organ lymph node of head Organ bronchial lymph node Organ lymph node of lower limb Organ lymph node of upper limb Organ thoracic lymph node Organ

अक्सर पूछे जाने वाले प्रश्न

What is the internal anatomy of a lymph node?
Lymph nodes are encapsulated by a fibrous capsule from which trabeculae extend inward. The outer cortex contains follicles (B cell zones) with germinal centers during immune responses. The inner paracortex is T cell-rich. The medulla contains medullary cords (antibody-secreting plasma cells) and sinuses draining to the efferent lymphatic vessel at the hilum.
How do lymph nodes filter lymph?
Lymph enters lymph nodes through multiple afferent lymphatic vessels and percolates through a network of subcapsular, cortical, and medullary sinuses. Macrophages lining these sinuses phagocytose pathogens, cell debris, and foreign particles, while lymphocytes sample antigens to initiate adaptive immune responses.
Why do lymph nodes swell during infection?
Lymph node enlargement (lymphadenopathy) occurs when lymphocytes rapidly proliferate in response to antigens, filling lymphoid follicles with activated B and T cells. Increased macrophage activity and edema within the node also contribute to swelling, which clinically signals ongoing immune activity or infection.

संबंधित संरचनाएं

parenchyma of spleen splenic parenchyma red bone marrow medulla ossium rubra reticuloendothelial system lymphoreticular Schweigger-Seidel sheath spleen B cell corona B cell domain of the spleen spleen capsule capsula splenica spleen follicular dendritic cell network FDC network non-lymphatic part of lymphoid system non-lymphatic lymphoid system

चिकित्सा अस्वीकरण

यह सामग्री केवल शैक्षिक और सूचनात्मक उद्देश्यों के लिए है। इसे पेशेवर चिकित्सा सलाह, निदान या उपचार के विकल्प के रूप में नहीं माना जाना चाहिए। किसी चिकित्सा स्थिति के बारे में आपके किसी भी प्रश्न के लिए हमेशा अपने चिकित्सक या अन्य योग्य स्वास्थ्य प्रदाता से सलाह लें। इस वेबसाइट पर पढ़ी गई किसी बात के कारण कभी भी पेशेवर चिकित्सा सलाह को नजरअंदाज न करें या इसे लेने में देरी न करें।

Educational Disclaimer

This content is for educational and informational purposes only. It is not a substitute for professional medical advice, diagnosis, or treatment. Always consult a qualified healthcare provider for medical decisions.

Data sources: Terminologia Anatomica, Foundational Model of Anatomy, Wikidata.