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