記憶度
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問題一覧
1
2 types of circulation
Systemic circulation, Pulmonary circulation
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It is also called "greater or peripheral circulation"
Systemic Circulation
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Supplies blood from the heart's left ventricle to the aorta and its branches to all organs/ tissues in the body except the lungs.
Systemic Circulation
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Supplies blood from the heart's right ventricle to the pulmonary artery which branches into smaller arterioles and capillaries to the lungs.
Pulmonary Circulation
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Parts of the circulation
Heart, Blood vessels
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• hollow muscular organ • major pump of blood
Heart
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Receives blood from the vena cava to the right ventricle
Right atrium
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large vein that collects blood from venules
Right atrium
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Receives blood from the pulmonary vein to the left ventricle
Left atrium
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Pumps out blood into the pulmonary artery into the lungs
Right ventricle
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Pumps out blood into the aorta
Left ventricle
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a larger artery, that supplies blood to different organs/tissues of the body.
Left ventricle
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Blood vessels composed of:
Arteries, Arterioles, Venules, Veins, Capillaries
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Transport blood (under high pressure) to the tissues.
Arteries
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_________ are the last branches of arterial system.
Arterioles
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Responsible for two-way diffusion process
Capillaries
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collect blood from the capillaries and they gradually coalesce into larger veins.
Venules
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act as blood reserviors
Veins
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transport blood from venules back to the heart
Veins
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_________ is the force exerted by the blood against the wall of a vessel.
Blood Pressure
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Aorta Systolic Pressure = ____ mmHg
120
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Diastolic pressure = ___ mmHg
80
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Arteriolar end of capilliaries pressure = ____ mmHg
35
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Capillary pressure = _____ mmHg
17
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Venous end of capilary pressure = ___ mmHg
10
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Central venous pressure/ Right atrial pressure/ pressure in the vena cava = __ mmHg
0
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_________ is the amount of blood that flows in any point of the circulation at any given period of time.
Blood flow
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Determinants of blood flow
Pressure difference on the 2 ends of a vessel, Vascular resistance
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Factors affecting blood flow
Blood Hematocrit, Blood Viscosity
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Types of blood flow
Laminar Blood Flow, Turbulent Blood Flow
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2 major factors affecting pulse pressure
Stroke volume output of the heart, Total distensibility of the arterial tree
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a circulation with vessels of less than 100 micra in diameter
Microcirculation
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responsible for ( PCOP )
Albumin
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Immunoglobulin is antibodies
True
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porous in nature for the passing of fluid from plasma and the interstitium
Capillary membrane
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Spaces between cells
Interstitium
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Fluid present in the interstitium
Interstitial Fluid
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4 forces that determine the fluid movement through capillary wall:
Capillary pressure, Interstitial Fluid Pressure, Plasma Colloid Osmotic Pressure, Interstitial Colloid Osmotic Pressure
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allows an outward movement of fluid from blood capillary to interstitial fluid
Capillary pressure
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_______ = - mmHg (negative pressure)
Interstitial Fluid Pressure
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__________ = ____ mmHg, causes movement of fluid inward towards blood capillary
Plasma Colloid Osmotic Pressure, 28
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________ = ____ mmHg, causes movement of fluid outward towards ISF
Interstitial Colloid Osmotic Pressure, 8
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Unilateral left Cardiac failure
Interstitial edema
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Unilateral right Cardiac failure
Pulmonary edema
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pertains to failure of the heart to pump out blood.
Cardiac failure
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Movement of blood flow
vasomotion
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_______ pertains to the amount of blood that returns into the heart through veins
Venous return
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_______ pertains to the amount of blood that is pumped out of the heart going to the major arteries
Cardiac output