Medical Definition of Node (2024)

FAQs

What is a node in medical terms? ›

Node: Literally a knot, a node is a collection of tissue. For example a lymph node, is a collection of lymphoid tissue. A nodule is a small node, a little collection of tissue.

A node is a point of connection. Technically, a traffic intersection is a node since multiple roads connect at that point. Another type of node is a round swelling. Some are abnormal, like a node you discover on your knee, but others, such as a lymph node, are a normal part of your immune system.

A small bean-shaped structure that is part of the body's immune system. Lymph nodes filter substances that travel through the lymphatic fluid, and they contain lymphocytes (white blood cells) that help the body fight infection and disease.

Health nodes are a way of formalizing networks of care around health seekers; a network intended to reduce the burden on community health workers by bringing together family members, neighbours or friends who can potentially become a health node for the seeker.

What is a node? A. a point at which lines or pathways intersect or branch; a central or connecting point.

A node represents a branching point from the ancestral population. Terminals occur at the topmost part of each branch, and they are labeled by the taxa of the population represented by that branch.

Nodes Definition: In networking, a node is any device that is connected to a network and is capable of sending or receiving data. In layman's terms, a node can be a computer, router, switch, or any other device that sends or receives data over a network.

Nodes can be defined in terms of both computer science and networking. Even if slightly different, they complement each other in their functions. The complete definition of a node in networking terms is the connection point or a communication endpoint in devices such as routers and printers.

In astrology, the nodes denote the spiritual paths that we should move toward and let go of, as well as the type of energy we are currently working with. Over the course of a year and a half, the nodes move through each axis.

Lymph vessels send lymph fluid through nodes throughout the body. Lymph nodes are small structures that work as filters for foreign substances, such as cancer cells and infections. They contain immune cells that can help fight infection by attacking and destroying germs that are carried in through the lymph fluid.

Do swollen lymph nodes go away? ›

Swollen lymph nodes can be a literal pain in the neck. But more often than not, minor infection or illness is the cause. They should go away as soon as your condition clears up.

The root word LYMPHADEN/O means lymph nodes. The root word that means lymph is lymph/o while the root word that means lymph vessels is lymphangi/o.

: a body part resembling a knot. especially : a discrete mass of one kind of tissue enclosed in tissue of a different kind see atrioventricular node, lymph node.

A node can be a computer, printer, switch, or router. Nodes highly depend on the referred network and protocol layer to form a network connection. Additionally, each node on a network includes a unique IP address.

nodal adjective (IN BODY)

medical. relating to or affecting a lymph node: Cancer cells may spread to lymph nodes near the primary tumor. This is called nodal involvement. nodal lymphoma.

Your lymph nodes (or lymph glands) are small lumps of tissue that contain white blood cells, which fight infection. They are part of your body's immune system. They filter your lymph fluid, which is composed of fluid and waste products created by the body's tissues.

See your doctor if you're concerned or if your swollen lymph nodes: Have appeared for no apparent reason. Continue to enlarge or have been present for two to four weeks. Feel hard or rubbery, or don't move when you push on them.

A node can have a small or large amount of cancer cells in it. There are hundreds of nodes throughout the body. Several clusters or only a few nodes may be affected. Nodes near or far from the primary tumor may be affected.

“If you can feel a lymph node that's bigger than a half-inch, or if you can't move it with your finger, that's more worrisome,” says Beomjune B. Kim, MD, Head and Neck and Microvascular Reconstructive Surgeon at City of Hope Atlanta. Also, if it feels firm, that may cause concern, he says.