Module 8 Lymphatic System Exam
QUESTIONS AND ANSWERS 2024/2025
Lymphatic capillaries
vessels where interstitial fluid enters the lymphatic system to become lymph fluid; interlaced among the
arterioles and venules of the circulatory system in the soft connective tissues of the body; formed by
simple squamous endothelial cells and represent the open end of the system, allowing interstitial fluid to
flow in; extremely permeable; transport absorbed fats away from the intestine and deliver these
molecules to the blood
collecting lymphatic vessels
collect lymph from lymphatic capillaries
lymphatic trunks
larger lymphatic vessels created by merging of superficial and deep lymphatics
right lymphatic ducts
lymphatic duct on the right side of the body, head, thorax, and right upper arm that drain lymph fluid into
the right subclavian vein
thoracic duct
lymphatic duct on the left side of the body, in which the remaining portions of the body drain into the left
subclavian vein; begins just beneath the diaphragm in the cisterna chyli
lymph
contains a liquid matrix and white blood cells; drains into blood vessels, delivering molecules to the blood
that could not directly enter the bloodstream; interstitial fluid once it has entered the lymphatic system
lymphedema
inappropriate accumulation of interstitial fluid; caused by lymphatic capillaries
lymphocytes
primary cells of adaptive immune responses
T-cells
lymphocyte that does not secrete antibodies, but has a variety of functions in the adaptive immune
response; have the ability to either secrete soluble factors that communicate with other cells of the
adaptive immune response or destroy cells infected with intracellular pathogens; thymus-dependent
B-cells
