Both lymph and venous blood flow are heavily dependent on ________.
skeletal muscle contraction and differences in thoracic pressures due to respiration movement
Largest lymphatic organ
Spleen
Antibodies that act against a particular foreign substance are released by ________________.
plasma cells
Name 3 lymphatic tissues that are considered mucosa-associated
tonsils,Peyer's Patches and appendix
Because lymph vessels are very low pressure conduits, movements of adjacent tissues are important in propelling lymph through lymphatics
(T or F)
True
Receives lymph from most of the body
Thoracic duct
Digested fats are absorbed from the intestine by lymph capillaries (T or False)
True
Isolated clusters of lymph follicles found in the wall of the small intestine
Peyer's patches
The thymus is the only lymphoid organ that does not __________.
directly fight antigens
What effect does age have on the size of the thymus?
it initially increases in size and then decreases in size from adolescence through old age
Lymphatic capillaries are permeable to proteins (T or F)
True
What cells produce plasma cells, which secrete antibodies into the blood?
B cells
Which lymphatic organ stores blood platelets?
spleen
Small organs associated with lymphatic vessels are called ________.
lymph nodes
Protein containing fluid within lymphatic vessels
Lymph
The tonsils located at the base of the tongue are the _________.
lingual tonsils
What is bubo?
an infected Peyer's patch
Which lymphatic structure drains lymph from the right upper limb and the right side of the head and thorax?
right lymphatic duct
Lymphoid tissue is predominately reticular connective tissue (T or F)
True
Which cells become immunocompetent due to thymic hormones?
lymphocytes
The thymus is the most active during _____.
childhood