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Lymph vessel

 

 
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Lymph vessel
 
 
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In anatomy
Anatomy

Anatomy is a branch of biology that is the consideration of the body plan. It is a general term that includes human anatomy, animal anatomy and plant anatomy ....
, lymph vessels are thin walled, valve
Valve

A valve is a device that regulates the flow of a fluid by opening, closing, or partially obstructing various passageways. Valves are technically pipe Piping and plumbing fittings, but are usually discussed as a separate category....
d structures that carry lymph
Lymph

Lymph is the fluid that is formed as the interstitial fluid. It enters the lymph vessels by filtration. The lymph then travels to at least one lymph node before emptying ultimately into the right or the left subclavian vein, where it mixes back with blood....
. As part of the lymphatic system
Lymphatic system

The lymphatic system in vertebrates is a network of conduits that carry a clear fluid called lymph. It also includes the lymphoid tissue through which the lymph travels....
, lymph vessels are complementary to the vascular system. Lymph vessels are lined by endothelial cells
Endothelium

The endothelium is the thin layer of cell that line the interior surface of blood vessels, forming an interface between circulating blood in the lumen and the rest of the vessel wall....
, and deep to that have a thin layer of smooth muscle
Smooth muscle

Smooth muscle is a type of non-striated muscle, found within the tunica media layer of large and small arteries and veins, the urinary bladder, uterus, male and female reproductive tracts, gastrointestinal tract, respiratory tract, the ciliary muscle, and iris of the eye....
s, and adventitia
Adventitia

Adventitia is the outermost connective tissue covering of any Organ , Blood vessel, or other structure. It is also called the tunica adventitia....
 that bind the lymph vessel to the surroundings. Lymph vessels are devoted to propulsion of the lymph from the lymph capillaries, which are mainly concerned with absorption of interstitial fluid
Interstitial fluid

Interstitial fluid is a solution which bathes and surrounds the cells of multicellular animals. It is the main component of the extracellular fluid, which also includes Blood plasma and transcellular fluid....
 from the tissues.






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In anatomy
Anatomy

Anatomy is a branch of biology that is the consideration of the body plan. It is a general term that includes human anatomy, animal anatomy and plant anatomy ....
, lymph vessels are thin walled, valve
Valve

A valve is a device that regulates the flow of a fluid by opening, closing, or partially obstructing various passageways. Valves are technically pipe Piping and plumbing fittings, but are usually discussed as a separate category....
d structures that carry lymph
Lymph

Lymph is the fluid that is formed as the interstitial fluid. It enters the lymph vessels by filtration. The lymph then travels to at least one lymph node before emptying ultimately into the right or the left subclavian vein, where it mixes back with blood....
. As part of the lymphatic system
Lymphatic system

The lymphatic system in vertebrates is a network of conduits that carry a clear fluid called lymph. It also includes the lymphoid tissue through which the lymph travels....
, lymph vessels are complementary to the vascular system. Lymph vessels are lined by endothelial cells
Endothelium

The endothelium is the thin layer of cell that line the interior surface of blood vessels, forming an interface between circulating blood in the lumen and the rest of the vessel wall....
, and deep to that have a thin layer of smooth muscle
Smooth muscle

Smooth muscle is a type of non-striated muscle, found within the tunica media layer of large and small arteries and veins, the urinary bladder, uterus, male and female reproductive tracts, gastrointestinal tract, respiratory tract, the ciliary muscle, and iris of the eye....
s, and adventitia
Adventitia

Adventitia is the outermost connective tissue covering of any Organ , Blood vessel, or other structure. It is also called the tunica adventitia....
 that bind the lymph vessel to the surroundings. Lymph vessels are devoted to propulsion of the lymph from the lymph capillaries, which are mainly concerned with absorption of interstitial fluid
Interstitial fluid

Interstitial fluid is a solution which bathes and surrounds the cells of multicellular animals. It is the main component of the extracellular fluid, which also includes Blood plasma and transcellular fluid....
 from the tissues. Lymph capillaries are slightly larger than their counterpart capillaries of the vascular system. Lymph vessel that carries lymph to a lymph node
Lymph node

A Lymph node is an organ consisting of many types of cells, and is a part of the lymphatic system. Lymph nodes are found all through the body, and act as filters or traps for foreign particles....
 are called the afferent lymph vessel
Afferent lymph vessel

The afferent lymph vessels enter at all parts of the periphery of the lymph node, and after branching and forming a dense plexus in the substance of the capsule, open into the lymph sinuses of the Cortex part....
, and one that carries it from a lymph node is called the efferent lymph vessel
Efferent lymph vessel

The efferent lymphatic vessel commences from the lymph sinuses of the medullary portion of the lymph nodes.Efferent lymphatic vessels are also found in the thymus and spleen....
, from where the lymph may travel to another lymph node or may be returned to a vein, or may travel to a larger lymph duct
Lymph duct

A lymph duct is a great lymphatic vessel that empties lymph into one of the subclavian veins. There are two lymph ducts in the body—the right lymph duct and the thoracic duct....
. Lymph ducts drain the lymph into one of the subclavian vein
Subclavian vein

In human anatomy, the subclavian veins are two large veins, one on either side of the body. Its diameter is approximately that of a man's small finger....
s and thus returning it to general circulation.

Generally, lymph flows away from the tissues
Biological tissue

Tissue is a cellular organizational level intermediate between cells and a complete organism. Hence, a tissue is an ensemble of cells, not necessarily identical, but from the same origin, that together carry out a specific function....
 to lymph node
Lymph node

A Lymph node is an organ consisting of many types of cells, and is a part of the lymphatic system. Lymph nodes are found all through the body, and act as filters or traps for foreign particles....
s and eventually to either the right lymphatic duct
Right lymphatic duct

The right lymphatic duct, about 1.25 cm. in length, courses along the medial border of the Scalenus anterior at the root of the neck. In most cases it ends in the right subclavian vein, at its angle of junction with the right internal jugular vein, although the termination can be variable....
 or the largest lymph vessel in the body, the thoracic duct
Thoracic duct

In human anatomy, the thoracic duct is an important part of the lymphatic system—it is the largest lymphatic vessel in the body. It is also known under various other names including the alimentary duct, chyliferous duct, duct of Pecquet, the left lymphatic duct and Van Hoorne's canal....
. These vessels drain into the right and left subclavian veins respectively.

Function

Lymph vessels act as a reservoir from plasma and other substances including cells that leaked from the vascular system and transport lymph fluid back from the tissues to the circulatory system. Without functioning lymph vessels, lymph cannot be effectively drained and edema
Edema

File:Oedema.jpgEdema or Oedema , formerly known as dropsy or hydropsy, is an abnormal accumulation of fluid beneath the skin, or in one or more cavities of the body....
 typically results.

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