lymphatic fluid balance Flashcards
term for the transport of lymph through the lymph vessels to venous portion of CV system
reiterate
thoracic pressure changes as breathe is what pump?
respiratory
milking of skeletal muscle is what pump
muscular pump
what do valves do
prevent backflow
what is clear, colorless fluid that circulates through the lymphatic system
lymph fluid
what substances does lymph fluid contain (5)
- plasma proteins
- lipids
- waste products
- excess fluid
- white blood cells
what are plasma proteins
immunoglobins and other proteins involved in blood clotting and immunity
lipids are absorbed from
absorbed from the digestive system
what are waste products
dead cells, bacteria and other debris
where is excess fluid from
tissues and interstitial space
what do white blood cells help with
immunity
the composition of lymph fluid varies due to what?
what part of the body it is coming from and the presence of any infections
lymph nodes play important role in what?
filtering harmful substances and cleaning lymph fluid
what are two ways the lymphatic system manages fluid balance?
- draining interstitial fluid
- transporting plasma proteins
how does the lymphatic system drain the interstitial fludi
it collects the excess IF from the spaces between cells in tissues and returns it to the blood stream
what are the two reasons the lymphatic system drains IF
- to maintain and regulate BP by reducing the hydrostatic force for fluid dispersion to the cells
- prevent swelling/ edema via maintains normal BV
how does the lymphatic system transport plasma proteins
through lymph fluid that contains plasma proteins to prevent the buildup of these proteins in the tissues
what does transporting of plasma proteins prevent
fluid from leaking back into the interstitial space
the flow of lymph can be altered based on what two things
pressure and resistance
flow= change in what
pressure/ resistance
total peripheral resistance can occur from what?
interstitial fluids
fluid dynamics with lymph fluid is based on the balance between what two factors?
hydrostatic pressure and osmotic pressure of the cardiovascular system
what is hydrostatic pressure
force generated by pressure of fluid on capillary walls by the blood plasma or IF
what is osmotic pressure
force exerted by the proteins in fluid
push of forces is what
hydrostatic pressure
pull of forces is what
osmotic pressure
hydrostatic pressure of fluid is pressed into the interstitial space causing what?
greater pressure in arterioles than venules
osmotic pressure of fluid into venules causes what
balance fluid and proteins
what does balance of hydrostatic pressure and osmotic pressure create
filtrated CV fluid
10% of volume excreted into space is absorbed by what?
lymphatic system
the remainder of the CV fluid is reabsorbed into what?
venous system
fluid is absorbed into lymph vessels as what increases
interstitial fluid
lymphatic flow summary (4)
- filtration
- collection
- filtration and cleaningn
- return to bloodstream
what is xs fluid that can cause pain and interfere with normal movement and function
swelling
xs swelling caused by bloackage of hte lymphatic system is called
lymphedema
lymphedema untreated can cause what?
infection, necrosis and other complications
what does nerve and blodo vessel compression cause
increase in pressure which results in numbness and tingling
when you have a respiratory issue what happens?
severe edema can cause fluid accumulation in the lungs and cause SOB, wheezing and increased fatigue
when you have cardiac issues what is occuring?
edema can put strain on the heart, leading to heart failure, arrhythmias
