2023-01-05T07:19:55+03:00[Europe/Moscow] en true <p>The circulatory system is a _____ that has a _____ flow rate.</p>, <p>The nonconstant flow of the circulatory system is a result of ...</p>, <p>The nonconstant flow of the circulatory system can be felt as a _____.</p>, <p>There is a loss of volume from the circulation as a result of a difference between _____ and _____ pressures. As a result, the _____ cannot accurately be applied</p>, <p>Blood volume entering the heart is always _____ blood volume leaving the heart during a single cycle.</p>, <p>As blood flows away from the heart, each vessel has a progressively _____ resistance until the capillaries. The total resistance of the system _____ because the increased number of vessels are ...</p>, <p>Return blood flow to the heart is facilitated by three things (primarily):</p><p>1) _____ causing _____</p><p></p><p>2) _____ causing _____</p><p></p><p>3) the pressure gradients created in the _____ by _____.</p>, <p>Venous circulation holds approximately _____ as much blood as arterial circulation.</p>, <p>Heart murmurs, which result from _____, are heard because of _____.</p>, <p>During inspiration, there is a _____ pressure gradient that moves air _____.</p>, <p>During expiration, there is a _____ pressure gradient that moves air _____.</p>, <p>When air reaches the alveoli, it has _____.</p>, <p>The total resistance of the respiratory system _____ as lung travels further into the lungs.</p>, <p>The continuity equation _____ be applied to human circulation.</p> flashcards
MCAT Physics and Math 4.4: Fluids in Physiology

MCAT Physics and Math 4.4: Fluids in Physiology

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  • The circulatory system is a _____ that has a _____ flow rate.

    closed loop

    nonconstant

  • The nonconstant flow of the circulatory system is a result of ...

    ... valves, gravity, the physical properties of our vessels (elasticity, in particular), and the mechanics of the heart.

  • The nonconstant flow of the circulatory system can be felt as a _____.

    pulse

  • There is a loss of volume from the circulation as a result of a difference between _____ and _____ pressures. As a result, the _____ cannot accurately be applied

    osmotic (oncotic)

    hydrostatic

    continuity equation

  • Blood volume entering the heart is always _____ blood volume leaving the heart during a single cycle.

    equal to

  • As blood flows away from the heart, each vessel has a progressively _____ resistance until the capillaries. The total resistance of the system _____ because the increased number of vessels are ...

    higher

    decreases

    ... in parallel with each other. (This is analogous to resistors in parallel in electric circuits)

  • Return blood flow to the heart is facilitated by three things (primarily):

    1) _____ causing _____

    2) _____ causing _____

    3) the pressure gradients created in the _____ by _____.

    mechanical squeezing of the skeletal muscles causing an increase in pressure in the limbs

    the expansion of the heart causing a decreases in pressure in the heart

    thorax by inhalation and exhalation

  • Venous circulation holds approximately _____ as much blood as arterial circulation.

    three times

  • Heart murmurs, which result from _____, are heard because of _____.

    structural defects of the heart

    turbulent blood flow

  • During inspiration, there is a _____ pressure gradient that moves air _____.

    negative

    into the lungs

  • During expiration, there is a _____ pressure gradient that moves air _____.

    positive

    out of the lungs

  • When air reaches the alveoli, it has _____.

    essentially no speed

  • The total resistance of the respiratory system _____ as lung travels further into the lungs.

    decreases

  • The continuity equation _____ be applied to human circulation.

    cannot