問題一覧
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Arterial circulation is maintained by
heart pump
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Through the use of massage
manual drainage
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Pressure in arterial system
90-100 mmHg in large vessels, decreases by 25-35 mmHg in arterioles
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May last for weeks or months depending on tge severity of pathology and type of soft tissue affected
proliferative
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Accumulation of interstitial fluid due to an obstruction in lymph channels that prevents reabsorption of proteins from the interstitium
lymphedema
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Transport dark, unoxygenated blood from tissues back to the heart
veins
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Lymphatic organs
lymph nodes, tonsils, spleen, thymus, thoracic duct
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Localized tissues respond initiate by pathology or injury
inflammatory
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Aim is to clean the wound of its cellular debris, preparing it for the deposition of new repaired and regenerated tissues
inflammatory
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Phases of wound healing
homeostasis, inflammatory, proliferative, remodeling
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Lasts a few seconds or in the case of moderate to severe pathologies that involve multiple well-vascularized tissues up to several minutes
homeostasis
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MAP
diastolic bp + 1/3 (systolic bp-diastolic bp)
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High viscosity
high resistance
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Greater number
veins
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Balance between BHP+IFOP+BCOP = NFP
sterling’s law of capillaries
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One way valves to prevent backflow
veins
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Promote reabsorption
bcop
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Influence of muscle contraction to increase venous return
pumping exercises
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Low lumen
high resistance
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Can be caused by inadequate reabsorption due to decrease plasma protein concentration
edema
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Ability of tissue to automatically adjust its blood flow to match its metabolic demands
autoregulation
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Predisposition to infection
kidney disease
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Disturbance of joint function
heart disease
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Not usually detectable in tissues until interstitial fluid volume rises to 30% above normal
edema
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Generated by pumping of heart
bhp
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IFOP
0 mmHg
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Occur within seconds after the blood vessel trauma include vessel constriction and the development of a temporary hemostatic plug in the damaged vessels
initial homeostatic mechanism
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Lasts months to years depending on the severity of the pathology and type of soft tissue affected
remodeling or maturation
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Coagulation or blood clotting
secondary homeostatic mechanism
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Main pressure promoting reabsorption fluid
bcop
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Promote filtration
bhp, ifop
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Known for vasodilating and vasoconstricting
arteries
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BHP+IFOP+BCOP =
NFP
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Excessive build up of fluid in body’s tissues
edema
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Transport oxygenated blood from high pressure to low pressure
arteries
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Excess fluid in a cavity
effusion
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Loss of NFP balance =
edema
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Increased pressure on sensory nerves leading to pain
low albumin
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Collect cellular debris and bacteria, remove excess fluid, blood waste, protein molecules and produce antibodies
lymph nodes
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Occurs in reponse to inflammation, fluid imbalance, vascular impairments and as a result of systemic issues and comorbidities
edema
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Artery layers
tunica externa or adventitia, tunica media, tunica intima
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BHP
16-35 mmHg
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BCOP
26 mmHg
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Capacitance vessels
veins
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Amount is determined by the degree of imbalances in fluid exchange
edema
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Increased length
high resistance
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Edema can be caused by excess filtration due to
increased capillary bp, increased permeability of capillaries
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Formation of new fibrous tissue
fibroplasia
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Arterioles + venules =
anastomosing network
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Amount of blood that the heart can pump per beat
cardiac stroke volume
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Pressure-driven movement of fluid and solutes from blood capillaries into interstitial fluid
filtration
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Medication, infection, pregnancy and other medical conditions may cause edema
true
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Deep veins accompany arteries, while superficial do not
true
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Drains lymph from bodily tissyes and returns it to venous circulation
lymphatics
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Blood flows from regions of hight pressure to low pressure
true
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Lymph travels from
lymphatic capillaries, lymphatic vessels, ducts, left subclavian vein
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Decreased ROM
critical burns
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Thinner walls
veins
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Resistance vessels
arteries
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Placement of limb in anti gravity position to facilitate drainage
elevation
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May cause tissue necrosis
allergic reactions
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Application of non elastic or low stretch bandage or an intermittent, sequential pneumatic compression pump to facilitate shrinkage of edema
compression
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Formation of new blood vessels
angiogenesis
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Important for regulation of relative volumes of blood and interstitial fluid
bulk flow
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Controlled by small amount of muscles arranged in a helical pattern in the tunica media
vasomotor tone
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IFHP
0.1-5 mmHg
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Body’s emergency response to injury or pathology with the aim is to prevent hemorrhage
homeostasis
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Influenced by ELASTICITY and EXTENSIBILITY of vessel wall, and by peripheral resistance, amount of blood in the body
arteries
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Result if filtration > exceeds reabsorption = abnormal increase in interstitial fluid volume
edema
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Formation of new and immature repair tissues to replace damaged tissue
proliferative
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First phase of healing
remodeling or maturation
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Increased pressure that blocks blood flow to tissues
allergic reactions
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Primarily ib extracellular space
edema
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Application of ice packs to slow local blood flow and reduce fluid accumulation
cold application
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Hapoends when small blood or lymphatic vessels leak into nearby tissues causing abnormal accumulation of fluid in the interstitial space
edema
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Predisposition to thrombosis or pulmonary embolism
pregnancy
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Small blood vessels that connects the ends of arteries with the beginning of veins, forming anastomosing network
capillaries
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Occurs because of excessive accumulation of extravascular and extracellular fluid in tissue spaces due to disruption of fluid regulation as a result of water protein imbalance across capillary membrane
edema
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Exchange of nutrient and fluids between blood and tissues
capillaries
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Influenced by muscle contraction, gravity and respiration
veins
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Walls are thin and permeable
capillaries
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Factors affecting blood flow
bp, vascular resistance, venous return, velocity of blood flow