Anatomy of the Lymph Vessel System Flashcards
What is the most important task of the lymph vessels?
The drainage and transport of interstitial fluid, along with various substances contained in it, into the venous blood circulation.
True or False: The goal of manual lymph drainage and complete decongestive therapy is to improve or restore lymph drainage that has become imparied?
True
Name three differences from blood vessels in regards to lymph vessels.
They are not a component of a closed circuit, do not have a central pump comparable to the heart, and have interposed lymph nodes.
Name the four sub division sections
lymph capillaries, collectors, trunks, precollectors.
T or F. Collectors and trunks serve to train the interstitial fluid?
False
Name 4 characteristics of lymph capillaries
Cover the body like a net of valveless vessels. They are larger in diameter than blood capilaries. Have flap valves that enable the inflow of interstitial fluid. Begin with finger-like protrusions in the tissue. Consist of endothelial cells, a basal membrane, and so -called anchor filaments. Have no valves insdie the vessels.
Where are the prelymphatic channels located?
Between the blood capillaries and the lymph capillaries.
T or F: In the framework of a therapeutic session, lymph flows from lymph capillaries can be shifted in a desired direction.
True
Describe precollectors
They are connected to the lymph capillaries and function somewhat like capillaires and somewhat like collectors. Like capillaries, they precolectors have sections in which interstitial fluid is reabsorbed. They also transport lymph to the collectors.
What is the main function of collectors?
They are the actual lymph transport vessels.
T or F. The valves of the collectors are active and not passive.
False.
T or F. When a collector is blocked, the lymph can easily be detoured to aother lymph vessels.
True
Name two of the three types of of tissues that deep (intrafascial) collectors of the extremeties and trunk drain?
They drain the relevant muscles, joints and ligaments.
Describe fluid flow and compare it to vein flow
Unlike the veints, the direction of the fluid flow is pirmarily from below the the surface. Treatment of the surface vesels automatically improves the emptying of the deep vessels. This is a suction or water-pump effect.
What are the largest lymph vessels called?
Lymph trunks.
Where do lymph trunks take the flow of lymph?
They tank lymph from the inner organs to the extremities and to the sections of the trunk pertaining to them (trunk quadrants).
Where is lymph from the lower extremities taken?
As well as the pelvic region. These are taken from the truncus lumbalis dexter and from the truncus lumbalis sinister. These two lumbar lymph trunks join with the truncus gasrointestinalis and then run to the ductus thoracious.
What is the largest lymph trunk in the body?
Ductus thoracicus
Where is the cisterna chyli located?
It is 3-8 cm long and lies below diaphram at the level of the first lumbar vertebra.
What transports intestinal lymph?
Truncus gastrointestinalis
What are the three central lymph trunks?
Truncus jugularis, Truncus subclavius, truncus bronchomediastinalis.
What region drains from the axillary nodes, receives lymph from the upper trunk quadrants, the thoraci gland, and the arm?
Truncus subclavius
What transports lymph from the bronchials, the lungs and the mediastinum?
Truncus bronchomediastinalis
The three main lymph trunks come together on the right side to form a thick common trunk called?
Ductus lymphaticus dexter.
The three main lymph trunks come together on the left side to form a thick common trunk called?
Ductus thoracicus
The vena jugularis interna and the vena subclavia are joined behind the collarbone to the large what?
vena brachiocephalica
What is the cutoff point for the lymph of the lower half of the body?
Anything below the diaphram
the lymph of the lower half of the body as well as the left upper body quadrant flows through the ductus thoracicus to the left venous angle. T or F
True
The right upper quadrant of the body is drained by what into what?
Drained by the ductus lymphaticus dexter into the right venous angle
What is the venous angle?
The place where the two veins, vena jugularis interna and vena subclavia are joined.
Name 3 characteristics of a lymph nodes structure
Bean shaped, 2 to 3 cm long, internal cell network siilar to a filter, a real organ with its own blood vessel and supply of nerves.
True or False. Normally lymph nodes are not palpable.
True
Describe efferent vessels and afferent vessels
The lymph enters the node in the afferent lymphatic vessels, and leaves the node in the efferent lymphatic vessel.
What is the entrance for the lymph nodes into the veins called
Hilus
T or F. The overall diameter of the afferent lymph vessels is smaller than that of the efferent lymph vessels.
False.
The legs, outer genitals, and lower trunk quadrant below to the the tributary region of what nodes
Inguinal.
The tributary regions are seperated brom one another by what?
Lymphatic watersheds.
How many quadrants are created with watershds?
Four. Two above the navel and two below the navel.
What does tributary region mean?
Also known as trunks which drain large regions.
Describe prelymphatic channels
They bridge lymphatic watersheds whic hconnect blood capilaries to lymph capilaries and run along the connective tissue fibers,
