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Articles on Trending Technologies
Technical articles with clear explanations and examples
Macrophages - The Professional Phagocytes and their Interaction with Kupffer Cells
Introduction Macrophages and Kupffer cells are both resident macrophages found in the liver, but they have distinct functions and differ in their origins. Macrophages are found throughout the body and can be recruited to the liver during inflammation or infection. The immune system plays a critical role in defending the body against harmful pathogens and foreign substances. Kupffer cells, on the other hand, are specialized macrophages that originate from fetal liver progenitors and are responsible for filtering blood in the liver. Professional phagocytes are immune cells that specialize in recognizing and engulfing foreign particles, such as bacteria, viruses, and ...
Read MorePlatelets and Their Role in Clotting
Introduction Platelets, also known as thrombocytes, are small, colourless, disc-shaped cells that play a crucial role in haemostasis, a process by which bleeding is stopped in injured blood vessels. Platelets are produced in the bone marrow and circulate in the blood until they are needed to form a blood clot. The clotting process involves a complex interplay between platelets, coagulation factors, and blood vessel walls. Platelet Structure and Function Platelets are the smallest of the three types of blood cells, with an average size of 2-3 µm in diameter. They are produced by megakaryocytes in the bone marrow, which ...
Read MoreHow to add controls to an audio in HTML5?
HTML5 is a combination of technologies that the user can use for creating more robust and diverse websites and web apps that support multimedia, and communicate with software interfaces, among other things. In this article, we are going to see how we can add controls to audio in HTML5. Syntax The controls attribute of the tag can be used to specify the controls of the embedded audio. It allows the user to technically embed a music player directly in the webpage. The controls attribute adds functionalities such as play, pause, and volume. ...
Read MoreMegakaryocytes - Development, Function, and Clinical Significance
Introduction Megakaryocytes are large cells found in the bone marrow that are responsible for producing platelets, which are essential for blood clotting. They are named for their large size, with a diameter ranging from 30 to 100 micrometers, and are classified as a type of hematopoietic cell, meaning they originate from stem cells in the bone marrow. Megakaryocytes are large, multinucleated cells that are responsible for producing platelets, which are essential for coagulation of blood. They are unique among bone marrow cells due to their enormous size, and their ability to undergo endomitosis, where they replicate their DNA without cell ...
Read MoreMyelocyte - A Cell of Granulocytic Series
Introduction Blood is a vital component of the human body, transporting oxygen and nutrients throughout the body and removing waste products. It is a complex mixture of different types of cells and plasma, which work together to maintain homeostasis. White blood cells, also known as leukocytes, play a crucial role in the body’s immune system. They help defend the body against infections and other foreign invaders. One of the types of leukocytes is the myelocyte. It is a cell of the granulocytic series and is one of the stages of the maturation of neutrophils. Myelocytes are a critical part ...
Read MoreMechanism and Significance of Memory B Cells
Introduction The human immune system is a complex network of cells and molecules that work together to defend the body against harmful pathogens. One of the key components of the immune system is memory B cells, which are responsible for the long-term immune response to infectious agents. Memory B cells are the vital components of the adaptive immune system, allowing the body to mount a faster and more effective immune response upon exposure to the same pathogen in the future. Mechanism of Memory B cells B cells are a type of white blood cell that are part ...
Read MoreMajor Histocompatibility Complex and MHC Molecules
Introduction The Major Histocompatibility Complex (MHC) is a group of genes located on chromosome 6 in humans that encode for MHC molecules. These molecules are essential for the immune system to identify and respond to foreign invaders such as viruses, bacteria, and other pathogens. The MHC plays a crucial role in determining the compatibility of transplants and is also implicated in a wide range of diseases, including autoimmune disorders and cancer. Below we shall explore the MHC in detail, discussing its structure, function, and importance in immunology. Structure of MHC Molecules The MHC is divided into two classes: ...
Read MoreLife Cycle of Dendritic Cells: Types and Disease
Introduction Dendritic cells (DCs) are a type of immune cell that play a critical role in the immune system. They are responsible for identifying, capturing, processing, and presenting antigens to T cells. DCs are found in most tissues of the body, including lymphoid and non-lymphoid tissues, and are critical for the initiation and regulation of immune responses. This tutorial will explore the life cycle of dendritic cells, their different types, and their role in various diseases. Dendritic Cell Presenting Antigen to T-Cell Life Cycle of Dendritic Cells Dendritic cells are derived from hematopoietic stem cells in the bone marrow. ...
Read MoreFollicular B Helper T Cells and Their Function
Introduction Within the T cell population, a specific subset known as follicular B helper T cells (Tfh cells) play a crucial role in the formation and function of germinal centers, which are critical for the development of high-affinity antibodies. The immune system plays a critical role in protecting the body from infectious agents and other harmful pathogens. T cells are an essential component of the immune system and are involved in a wide range of functions, including recognizing, and responding to foreign antigens. Overview of Tfh cells Follicular B helper T cells (Tfh cells) are a specialized subset of ...
Read MoreClonal Deletion: Complete vs Incomplete Deletion
Introduction Clonal deletion is a critical process in the development and regulation of the immune system. It is the process by which the body's immune system eliminates self-reactive lymphocytes, which can potentially cause autoimmune diseases. Clonal deletion is a complex process, and there are two types of clonal deletion: complete and incomplete deletion. In this tutorial, we will discuss the differences between complete and incomplete deletion, their mechanisms, and their importance in the immune system. Complete Clonal Deletion Complete clonal deletion, also known as negative selection, is the process by which self-reactive lymphocytes are eliminated from the immune system. ...
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