Lymphoid Collection

Tonsil, light micrograph F006 / 9818
Tonsil. Light micrograph of a section through the surface of a tonsil showing the stratified squamous epithelium (pink) and underlying lymphoid tissue

Blood cells, illustration C018 / 0802
Blood cells. All cellular blood components originate from the same cell, the haematopoietic stem cell. The stem cell differentiates into two types of progenitor cells

Human lymphatic system, artwork
Human lymphatic system. Artwork of a front view of a human, showing the lymphatic system (yellow). Also seen are associated organs including the spleen (centre right)

Tonsil, light micrograph
Tonsil. Light micrograph of a section through the surface of a tonsil, showing a lymphoid nodule (purple). Tonsils are lymph nodes, which filter pathogens from tissue fluid

Spleen. Artwork showing the structure of the spleen and its blood vessels. The splenic artery (red, bottom) supplies blood and the splenic vein (blue, top) drains it

Peyers patches, SEM
Peyers patches (red), coloured scanning electron micrograph (SEM). These regions of lymphoid tissue are found in the human intestine, usually in the ileum, the final section of the small intestine

Healthy mouth, artwork
Healthy mouth. Artwork of the interior of a healthy mouth. On either side at the back of the mouth are the tonsils, masses of lymphoid tissue

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Lymphoid tissues play a crucial role in our immune system, acting as the first line of defense against harmful pathogens. One such lymphoid organ is the tonsil, which can be seen under a light microscope in image F006 / 9818. These small masses of tissue are strategically located at the back of our throat and help filter out bacteria and viruses that enter through our mouth or nose. The human lymphatic system, depicted beautifully in artwork, consists of various interconnected vessels and organs that transport lymph fluid throughout our body. This intricate network ensures the proper functioning of our immune response by carrying white blood cells to areas where they are needed most. Illustration C018 / 0802 showcases different types of blood cells found within this system. These specialized cells include lymphocytes, which are responsible for recognizing and eliminating foreign invaders from our body. Another artwork highlights the spleen, an essential organ involved in filtering blood and removing old or damaged red blood cells. It also plays a vital role in producing antibodies to fight infections. Peyer's patches, observed under scanning electron microscopy (SEM), are shown as tiny bumps on intestinal walls. These structures contain specialized immune cells that monitor gut bacteria and prevent harmful substances from entering our bloodstream. Lastly, we see an artwork representing a healthy mouth – another important part of the lymphoid system. The oral cavity contains numerous lymph nodes that help protect us from oral infections by trapping bacteria before they can spread further into our bodies. These captivating images provide glimpses into various aspects of the lymphoid system – from tonsils to Peyer's patches – highlighting their significance in maintaining overall health and immunity.