What Is Keratin?
Simple Definition: Keratin is a strong and durable protein [a substance your body uses to build itself] found in the outer layer of our skin, hair, nails, and in the…
What Is Histamine?
Simple Definition: Histamine is a chemical compound [substance made from a single type of molecules] released by cells in the body that causes allergic reactions [body's response to something it…
What Is Peristalsis?
Simple Definition: Peristalsis is the coordinated muscle contraction and relaxation that helps move food through the digestive tract [the long tube in the body where food goes after it is…
Meaning Of Neuropathy
Simple Definition: Neuropathy is a condition in which there is damage or dysfunction in the nerves [the parts of the body that send messages to the brain]. This can result…
Definition Of Anemic?
Simple Definition: Anemic is a medical term used to describe a condition in which a person has a lower than normal number of red blood cells in their body. Red…
What Is Phagocytosis?
Simple Definition: Phagocytosis is a process in which cells (called phagocytes) engulf [surround or cover] and digest foreign particles (such as bacteria or cellular debris) to protect the body from…
What Is The Meaning Of Libido?
Simple Definition: Libido refers to a person's sexual drive or desire (the feeling of wanting to have sex). It is the natural instinct that motivates individuals to engage in sexual…
What Is A Lesion?
Simple Definition: A lesion is an abnormal area on or inside the body [that looks different from the surrounding tissue and might be caused by injury or disease]. Examples: A…
What Is A Zygote?
Simple Definition: A zygote is the cell that forms when an egg and a sperm come together [combine] to start the development of a new living being. It is the…
What Is Urea?
Simple Definition: Urea is a chemical compound that is found in urine [the liquid waste product produced by the body] and is also synthesized for use in fertilizers, plastics, and…
What Is Cytoplasm?
Simple Definition: Cytoplasm is the gel-like substance that fills the cells. It contains all the organelles [specialized structures inside the cell] and is important for many cellular processes such as…
What Is An Antigen?
Simple Definition: An antigen is a substance that triggers an immune response in the body, causing the production of antibodies to fight against it. Antigens can be foreign substances like…
What Is Bile?
Simple Definition: Bile is a digestive fluid [a liquid that helps break down food] produced by the liver and stored in the gallbladder. It helps to break down fats in…
What Is Mitosis?
Simple Definition: Mitosis is the process of cell division in which a single cell divides into two identical daughter cells [cells that have the same genetic material]. During mitosis, the…
What Is The Meaning Of Tissue?
Simple Definition: Tissue is a group of similar cells that work together to perform a specific function [cells: the basic building blocks of living organisms]. For example, muscle tissue contracts…