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Langerhans cell is represented by a yellow oval; blue arrows correspond to is_a relations, and orange arrows correspond to develops_from relations. Only a subset of Langerhans cell parent types are included in the figure. [1] A Langerhans cell (LC) is a tissue-resident macrophage of the skin [2] once thought to be a resident dendritic cell. [3]
Islets of Langerhans – Pancreatic cells which include insulin-producing cells. Langerhans discovered these cells during his studies for his doctorate at the Berlin Pathological Institute in 1869. [1] Langerhans cells – Skin cells concerned with the immune response and which sometimes contain Langerhans granules.
The pancreatic islets or islets of Langerhans are the regions of the pancreas that contain its endocrine (hormone-producing) cells, discovered in 1869 by German pathological anatomist Paul Langerhans. [1] The pancreatic islets constitute 1–2% of the pancreas volume and receive 10–15% of its blood flow.
Once the activated lymphocytes arrive, they get in contact with the antigen, they proliferate and develop their effector functions in order to neutralize or eliminate the pathogen. The Langerhans cells promote and permit the start of the cellular immune response of lymphocytes through the skin and are recruited from the peripheral blood.
Dermal macrophages' functions suggest their importance in the skin’s innate immunity. Dermal macrophages, Langerhans cells and dendritic cells are the main types of antigen-presenting cells (APCs) in the skin. However, dermal macrophages have a relatively lower influence on antigen-presenting than other APCs.
1.1.1 Skin. 1.1.2 Anterior pituitary. 1.1.3 Tooth enamel. ... Pancreatic stellate cell; Islets of Langerhans. Alpha cell; Beta cell; PP cell (F cell, gamma cell ...
It comprises the skin and its appendages, which act as a physical barrier between the external environment and the internal environment that it serves to protect and maintain the body of the animal. Mainly it is the body's outer skin. The integumentary system includes skin, hair, scales, feathers, hooves, claws, and nails.
Beta cells (β-cells) are specialized endocrine cells located within the pancreatic islets of Langerhans responsible for the production and release of insulin and amylin. [1] Constituting ~50–70% of cells in human islets, beta cells play a vital role in maintaining blood glucose levels. [2] Problems with beta cells can lead to disorders such ...