Chapter 24 Lymphatic System Flashcards
Disease producing microbes such as bacteria and viruses known as what term?
Pathogens
The ability to ward off disease or damage through the body’s defense is?
Immunity
Another term for vulnerability or lack of resistance?
Susceptibility
This type of immunity is present at birth, has no memory, is fast. Examples include barriers (skin), fever, inflammation, natural killer cells, phagocytes.
Innate (nonspecific) immunity
This type of immunity is slower but more specific, has a memory component. Examples include lymphocytes: T cells and B cells.
Adaptive (specific) immunity
This body system is responsible for adaptive immunity (and some aspects of innate immunity).
Lymphatic system
This specialized form of reticular connective tissue contains large numbers of lymphocytes.
Lymphatic tissue
List the 3 primary functions of the lymphatic system
Drainage of excess fluids
Transports dietary lipids
Carries out immune responses
Interstitial fluid within lymphatic vessels is called what? Contains less protein than blood plasma.
Lymph
Lymphatic vessels begin where? What do lymphatic vessels resemble in terms of structure (valve)?
Lymphatic capillaries, lymphatic vessels resemble veins
Capsules( bean-shaped) surrounding lymphocytes, through which lymph flows, is what? Approx.
Lymph nodes, about 600
Name the main lymph-collecting duct, receives lymph from left side of head, neck, chest; left upper limb; entire body below ribs.
Thoracic duct
This other main duct drains lymph from upper right side of body.
Right lymphatic duct
Where does lymph drain back into eventually? Which veins.
Blood. Left and right internal jugulars, left and right subclavian veins
Lymph flows via venous return by the same two pumps as blood in veins. Name the pumps.
Skeletal muscle pumps, respiratory pumps.