2What are lymph nodes?A mass of lymphatic tissue that helps remove bacteria, tumor cells, etc…
3What is lymph?The watery fluid in the lymph vessels collected from the tissue spaces.
4List four lymphoid organs. spleenthymus glandtonsilsPeyer's patches
5List four mechanisms that aids lymph return: milking action of skeletal musclespressure changes within the thoraxsmooth muscle contractions within the lymphatic vesselspresence of valves within the larger lymph vessels
6What organ Filters and cleanses the blood of bacteria, viruses, and other debris Spleen
7What lymph organ programs T cells and functions at peak levels only during youth is the Thymus
8The body's first line of defense against the invasion of disease-causing microorganisms is: skin and mucous membranes
9The process by which neutrophils are squeezed through the capillary walls during the inflammatory process is called:diapedesis