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Bio Review Chapter 8 Part 5 (NC)

Terms in this set (18)

the body.
The immune & lymphatic system are related. B-cells proliferate and develop within the lymphatic system, especially the lymph nodes. The lymphatic system also serves other functions for.....
center of the body.
The lymphatic system, along w/ the cardiovascular system, is a type of circulatory system. It is made up of one-way vessels that become larger as they move toward the.....
left subclavian vein (near the heart).
These vessels carry lymphatic fluid (lymph) and most join to form a large thoracic duct in the posterior chest, which then delivers the fluid into the.....
to possible pathogens.
Lymph nodes are structures along the lymphatic vessels. They have a lymphatic channel, as well as an artery & vein. The lymph nodes provide a space for the cells of the immune system to be exposed.....
the same time.
Certain cancers, especially breast cancer, are prone to spread via lymphatic channels. In mastectomy, in order to ensure that all of the cancer has been removed, local lymph nodes are often removed at....
circulation.
The lymphatic system serves many different purposes for the body by providing a secondary system for.....
hydrostatic and oncotic pressures (Starling forces).
At the capillaries, fluid leaves the bloodstream and goes into the tissues. The quantity of fluid that leaves the tissues at the arterial end of the capillary bed depends on both.....
decreased
Remember that the oncotic pressure of the blood draws water back into the vessel at the venule end, once the hydrostatic pressure has......
the tissues.
BC the net pressure drawing fluid in at the venule end is slightly less than the net pressure pushing fluid out at the arterial end, a small amount of fluid remains in.....
pathology.
Lymphatic vessels drain these tissues and subsequently return the fluid to the bloodstream. The lymphatics offer some protection against.....
venule end.
Ex: if the blood has a low [albumin], the oncotic pressure of the blood is decreased, and less water is driven back into the bloodstream at the.....
lymphatics.
Thus, this fluid will collect in the tissues. Provided that the lymphatic channels are not blocked, much of this fluid may eventually return to the bloodstream via the......
edema occur
Only when the lymphatics are overwhelmed does.....
small intestine.
The lymphatic system also transports fats from the digestive system into the bloodstream. Lacteals, small lymphatic vessels, are located at the center of each villus in the.....
chyle
Fats, packaged into chylomicrons by intestinal mucosal cells, enter the lacteal for transport. Lymphatic fluid carrying many chylomicrons takes on a milky white appearance and is called.....
germinal centers.
Recall, lymph nodes are a place for antigen-presenting cells and lymphocytes to interact. B-cells proliferate and mature in the lymph nodes in collections called.....
Fluid would be unable to return from the lower leg, and edema would result. This infection leads to elephantiasis, severe swelling of the limb with thiccening of the skin.
** Filariasis is the name for an infection with a member of a certain group of parasites, most notably Wuchereria bancrofti. This parasite resides in lymph nodes and causes blockage of flow. If an individual had a W. bancrofti infection in the lymph nodes of his or her thigh, what would likely happen?
The thoracic duct carries lymphatic fluid into the left subclavian vein.
** What structure is primarily responsible for returning materials from lymphatic circulation to the cardiovascular system?
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