What are the Spleen and also Lymphatic System?

The spleen is situated in the top left part of the ship under the ribcage. That helps protect the human body by clearing worn-out red blood cells and other foreign bodies (such together germs) native the bloodstream.

You are watching: The thoracic duct runs parallel and close to all of the following except the __________.

The spleen is component of the lymphatic system, which is comprehensive drainage network. The lymphatic (lim-FAT-ik) system works to store body fluid levels in balance and also to defend the body versus infections. The is consisted of of a network the lymphatic vessels that lug lymph— a clear, watery liquid that consists of proteins, salts, and other substances — transparent the body.

What does the Spleen Do?

The spleen acts as a filter. The weeds the end old and also damaged cells and also helps manage the amount of blood and blood cells that circulate in the body.


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The spleen also helps eliminate germs. It includes white blood cells dubbed lymphocytesand macrophages. These cells work to attack and destroy germs and also remove them native the blood the passes with the spleen.

The body additionally uses the spleen together a place to keep blood and iron because that future use.

What walk the Lymphatic device Do?

One of the lymphatic system"s major jobs is to collection extra lymph fluid from body tissues and return it come the blood. This is important since water, proteins, and also other building materials are constantly leaking out of tiny blood capillaries right into the bordering body tissues. If the lymphatic mechanism didn"t drainpipe the overabundance fluid, the lymph liquid would develop up in the body"s tissues, making castle swell.

The lymphatic system is a network that very tiny tubes (or vessels) that drain lymph fluid from everywhere the body. The significant parts of the lymph organization are located in the:

bone marrow spleen thymus gland lymph nodes

The heart, lungs, intestines, liver, and also skin likewise contain lymphatic tissue.

The significant lymphatic ship are:

the thoracic duct: It begins near the lower component of the spine and also collects lymph from the pelvis, abdomen, and also lower chest. The thoracic duct operation up through the chest and also empties into the blood v a large vein close to the left side of the neck. the appropriate lymphatic duct: It collection lymph indigenous the appropriate side of the neck, chest, and also arm, and also empties right into a large vein near the right side of the neck.

The lymphatic system likewise helps safeguard the body versus germs (viruses, bacteria, and also fungi) that can reason illnesses. Those germs are filtered out in the lymph nodes, tiny clumps that tissue along the network that lymph vessels. Within the lymph nodes, lymphocytes called T-cells and also B-cells assist the body fight infection. B cells make antibodies — special proteins that stop infections from spreading by trapping disease-causing germs and also destroying them.

Most of our lymph nodes are in swarm in the neck, armpit, and groin area. They"re likewise found follow me the lymphatic pathways in the chest, abdomen, and pelvis, whereby they filter the blood.

See more: Which Of The Following Is True About Cells? ? Cells Flashcards

When a person has actually an infection, germs collection in the lymph nodes. If the neck is infected, for example, the lymph nodes in the neck might swell. That"s why doctors inspect for puffy lymph nodes (sometimes referred to as swollen "glands") in the neck once someone has actually a ill throat. This is called lymphadenopathy.