Which of the following is true about lymph nodes

The lymphatic system is part of the immune system. It keeps body fluid levels in balance and defends the body against infections. Lymphatic (lim-FAT-ik) vessels, tissues, organs, and glands work together to drain a watery fluid called lymph from throughout the body.

Índice Show

What Does the Lymphatic System Do?
What's in the Lymphatic System?
How do lymph nodes filter lymph fluid?
How are lymph nodes and cancer related?
What is true about lymph nodes?
Which statement is true about lymph nodes quizlet?
Which of the following best describes a lymph node?
Which one of the following statement is correct about lymph?

What Does the Lymphatic System Do?

One of the lymphatic system's major jobs is to drain extra (LIMF) fluid from body tissues and return it to the blood. Lymph contains white blood cells called lymphocytes (LIM-fuh-sites) and chyle (KYE-ul), which is made of fats and proteins from the intestines.

This is important because water, proteins, and other substances are always leaking out of tiny blood capillaries into the body tissues around them. If the lymphatic system didn't drain it, this extra fluid would build up in the tissues and make them swell.

What's in the Lymphatic System?

Organs and tissues that are part of the lymphatic system include:

bone marrow, the thick, spongy kind of jelly inside bones that makes many kinds of blood cells, including immune system cells
thymus gland, which makes immune system cells called T cells, especially before and during puberty
tonsils
appendix
lymph nodes

Lymph nodes are small clumps of tissue along the network of that clean lymph as it moves through them. They filter out viruses, bacteria, and fungi that can cause illnesses.

Most lymph nodes are in clusters in the neck, armpit, and groin area. They're also found along the lymphatic pathways in the chest, abdomen, and pelvis, where they filter blood. Inside the lymph nodes, T-cells and another type of lymphocyte, B-cells, help the body fight infection. B cells make antibodies — special proteins that stop infections from spreading by trapping disease-causing germs and destroying them.

When someone has an infection, germs collect in the lymph nodes. If their throat is infected, for example, the lymph nodes in the neck may swell. That's why doctors check for swollen lymph nodes (sometimes called swollen "glands") in the neck when someone has a sore throat. When lymphatic nodes swell, it's called lymphadenopathy (lim-fad-n-OP-uh-thee).

Lymph nodes (or lymph glands) are small lumps of tissue that contain white blood cells, which fight infection. They are part of the body’s immune system and filter lymph fluid, which is composed of fluid and waste products from body tissues. They help fight infections, and also play an important role in cancer diagnosis, treatment and the chance of recovery or recurrence.

Lymph nodes are located throughout the body, including the neck, armpits, groin, around the gut, and between the lungs. Lymph nodes drain lymph fluid from nearby organs or areas of the body.

How do lymph nodes filter lymph fluid?

Lymph fluid is carried to the lymph nodes by lymphatic vessels. The lymph nodes filter out harmful substances and waste products. They also contain immune cells called lymphocytes that destroy cancer cells and bacteria.

The filtered fluid is then returned to the blood circulation.

If you have an infection or cancer, a lymph node may become swollen. If you are concerned about your lymph nodes, speak to your doctor.

Illustration of the lymphatic system showing lymph nodes throughout the body Lymph nodes are located throughout the body. They drain lymph fluid from nearby organs or areas of the body.

Sometimes cancer can start in the lymph nodes (such as in lymphoma), but some others types of cancer can also spread from one part of the body to another through lymph nodes.

If a person has cancer, doctors examine lymph nodes carefully to see whether or not they are affected by cancer. They can do this by:

feeling all the nodes in the body
getting scans, for example a CT scan
removing nodes near the cancer, then examining them under a microscope
taking a biopsy of the lymph nodes near the cancer, then examining them under a microscope

This is done to see if the cancer has spread or not. This helps doctors work out the best treatment for the cancer.

Having swollen lymph nodes is only very rarely a sign of cancer. Lymph nodes may be swollen due to infection or inflammation. Swollen lymph nodes may be in the neck, under the arm or anywhere else there are lymph nodes. They can swell up to several centimetres and may stay swollen for weeks after the infection has cleared up.

What is true about lymph nodes?

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.

Which statement is true about lymph nodes quizlet?

The thoracic duct drains its lymph at the junction of the left internal jugular and subclavian veins. Which statement is true about lymph nodes? They have fewer efferent vessels than afferent (incoming) vessels.

Which of the following best describes a lymph node?

From the given choices, option (b) best describes the function of a lymph node. The major function of a lymph node is to expose the pathogens to the specialized leukocytes known as the lymphocytes. The lymph nodes filter the lymph and remove the pathogens which are then exposed to the lymphocytes.