lymphatic system Flashcards
since the immune system is not an organ system, what is it
a cell population that inhabits all organs and defends the body
the lymphatic system:
is a network of organs and vein like vessels that recovers fluid from what type of filtrate
what does it inspect it for
what responses does it activate
where does it return the fluid
capillary
disease agents
immune
bloodstream
what type of fluid is lymph similar to
what macromolecule does it have very little of
what type of fluid is it considered BEFORE it enters lymphatic capillaries and vessels
it differs in chemical composition in different places in the body such as in the intestines where it is more _____ and after lymph nodes where it has more ____ cells
plasma
protein
extracellular
creamy, lymph cells
what transport lymph
lymphatic vessels
what two things are lymphatic tissues an aggregate of and populate many organs in the body
lymphocytes
macrophages
in lymphatic organs:
what are especially concentrated here
what are they separated by surrounding organs with
defense cells
connective tissue capsules
does fluid continually filter form the blood capillaries into the tissue spaces
what % do blood capillaries reabsorb
what % of the water enter the lymphatic system and are returned to blood
what % of plasma proteins enter the lymphatic system and are returned to blood
15%
50%
what does excess filtered fluid pick up from tissues (2)
where does it pass through and what stands guard against it
what response is activated if needed
foreign cells and chemicals
lymph nodes, immune cells
immune response
3 functions of lymphatic system
immunity
fluid recovery
lipid absorbtion
- what is another name for a teeny tiny lymphatic capillary
- where are they
- do they have dead ends
- what does the fat from the small intestine get packed into by the golgi apparatus
how do (4) get into the (1)
lacteal
small intestine
yes
chylomicron
pressure causes shingles on the lacteals to open so that chylomicrons can flow into them and the fat is absorbed
how do lymphatic capillaries stick onto other capillaries
anchoring filaments
what tunica are valves in in lymphatic vessels
interna
is there pressure form the heart for lymphatic vessels
where does the right lymphatic duct drain into
where does lymph fluid go from the inferior part of the body
where does it go from there ^
where does it go from there ^
(left takes the CTL)
no
the right subclavian vein
cysterna chylie
thoracic duct
left subclavian vein
what is the gliac cell and lymphatic system called together in the brain
glymphatic system
what are the lymphatic vessels in the brain called
what do they do
meningeal lymphatic vessels
products filtered from the blood brain barrier flow into them
does lymph flow at a higher or lower pressure than venous return
how is it moved along
what happens to the vessels to stimulate this
what body pump aids this flow
what type of vessel squeezes these vessels
what specific pump aids from from abdominal to thoracic cavity
where does rapidly flowing blood draw lymph into it
what increases lymphatic return
lower
rhythmic contractions
stretching of vessels
skeletal-muscle
arterial
thoracic
subclavian
exercise
