2.淋巴结的功能functionoflymphnodes(1)滤过淋巴(2)免疫应答二.脾spleen1.脾的结构capsuleandtrabecula脾的实质:(1)白髓whitepulp动脉周围淋巴鞘(periarteriallymphaticsheath)淋巴小结,又称脾小结spleniccorpuscle,位于动脉周围淋巴鞘一侧,主要由大量B细胞构成。(2)边缘区marginalzone(3)红髓redpulp红髓由脾索和血窦...
Lymph node, any of the small, bean-shaped masses of lymphoid tissue enclosed by a capsule of connective tissue that occur in association with the lymphatic vessels. As part of the lymphatic system, lymph nodes serve as filters for the blood, providing sp
Throughout the human body, 500-600 lymph nodes are situated. These secondary lymphoid organs collect antigens from peripheral tissues via the afferent lymphatics and provide T and B lymphocytes with the optimal environment for cellular activation and proliferation. In this chapter, we will highlight...
Lymphatic system, network of vessels and other tissues, including the tonsils, spleen, and thymus, that maintains fluid balance and fights infection. Extracellular fluid in the lymphatic system is known as lymph. Lymph contains disease-fighting cells cal
Lymphatic System Structure The lymphatic system is composed of branching lymphatic vessels, which are similarly spread throughout the body to the circulatory system. These vessels are peppered throughout with lymph nodes, small bean-shaped glands. Some lymph nodes exist by themselves, while others exi...
What are the lymphatic vessels? The lymphatic vessels are a part of the human’s circulatory system. They drain the fluid called thelymphfrom around the cells and carry it through the system of thelymph nodesand lymphatic ducts into the venous blood. ...
The Lymphatic System:The lymphatic system is a network of vessels and organs that drains cellular waste from the body. This system helps maintain the balance of fluid and electrolytes in the body. The lymphatic system includes two major components: Lymph nodes and lymphatic vesse...
Freezing biopsy tissue before fixation preserved the anatomy of this structure, demonstrating that it is part of the submucosa and a previously unappreciated fluid-filled interstitial space, draining to lymph nodes and supported by a complex network of thick collagen bundles. These bundles are ...
et al. Conditional ablation of LYVE-1+cells unveils defensive roles of lymphatic vessels in intestine and lymph nodes. Blood 122, 2151–2161 (2013). CAS PubMed Google Scholar Unthank, J. L. & Bohlen, H. G. Lymphatic pathways and role of valves in lymph propulsion from small-intestine....
Integumentary system:Made up of yourskin, hair, and fingernails, this systemis responsible for protecting against external microorganisms and for keeping fluids within your body. Lymphatic system:Three organs—the lymph nodes, the lymph, and lymph vessels—help protect your body against diseases and ...