stroke volume

volume /vol·ume/ (vol´ūm) the measure of the quantity or capacity of a substance. Symbol V or V.

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end-diastolic volume  (EDV) the volume of blood in each ventricle at the end of diastole, usually about 120–130 mL but sometimes reaching 200–250 mL in the normal heart.

end-systolic volume  (ESV) the volume of blood remaining in each ventricle at the end of systole, usually about 50–60 mL but sometimes as little as10–30 mL in the normal heart.

expiratory reserve volume  the maximal amount of gas that can be exhaled from the resting end-expiratory level. Abbreviated ERV.

forced expiratory volume  the fraction of the forced vital capacity that is exhaled in a specific number of seconds. Abbreviated FEV with a subscript indicating how many seconds the measurement lasted.

inspiratory reserve volume  the maximal amount of gas that can be inhaled from the end-inspiratory position.

mean corpuscular volume  the average volume of erythrocytes, conventionally expressed in cubic micrometers or femtoliters per red cell.

minute volume  (MV) the quantity of gas exhaled from the lungs per minute; tidal volume multiplied by respiratory rate.

packed-cell volume  (PCV), volume of packed red cells (VPRC) hematocrit.

residual volume  the amount of gas remaining in the lung at the end of a maximal exhalation.

stroke volume  the volume of blood ejected from a ventricle at each beat of the heart, equal to the difference between the end-diastolic volume and the end-systolic volume.

tidal volume  the volume of gas inhaled and exhaled during one respiratory cycle.

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stroke volume

n.

The volume of blood pumped out of one ventricle of the heart in a single beat.

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stroke volume,

the amount of blood ejected by a ventricle during contraction.

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stroke,

n 1. a single, unbroken movement made by an instrument or the mandible.
2. a colloquial term for accident, cerebrovascular.

stroke, circular,

n an unbroken spherical movement of approximately 1 to 2 mm in diameter, combined with pressure, that is used to apply paste in polishing.

stroke, circumferential

n a movement used for root and gingival curettage; the blade of the periodontal curet is negotiated mesiodistally while it is in contact with either the root or the inner aspect of the soft tissue wall of the gingival or periodontal pocket.

stroke, exploratory,

n a phase of subgingival root scaling in which the curet is held in a featherlike grasp to ascertain tactilely the amount and extent of the deposits on the root surface; the ingress stroke into the pocket area.

stroke, horizontal,

n a short movement against a tooth that is made parallel to its occlusal surface.

stroke, oblique,

n a single, continuous diagonal movement of an instrument over the external face of the object being worked on.

stroke, placement,

n a single, continuous movement of an instrument over the surface of an object being worked on, which moves the instrument at the intended location.

stroke, power,

n the phase of the working stroke that is designed to split or dislodge calculus from the root surface. It is prefaced by the exploratory stroke and followed by the shaving stroke.

stroke, probe walking,

n the technique of assessing the progression and extent of disease within the oral cavity by inserting a periodontal probe into the sulcus or pocket of the tooth and moving the device up and down between 1 to 2 mm in height while simultaneously advancing forward in 1 mm increments.

stroke, pull,

n a single, continuous movement of an instrument over the surface of an object being worked on. A pull stroke is enacted to remove calculus from the surface of a tooth.

stroke, push and pull,

n the technique of using a subgingival explorer vertically or diagonally to assess a defect of the tooth's surface by inserting the lower shank of the instrument under the gingival margin and into the sulcus or pocket and moving the device up and down while simultaneously applying equal pressure and advancing forward.

stroke, shaving,

n the phase of the working stroke of a periodontal curet that is designed to smooth or plane the root surface. It follows the power stroke, which is designed to dislodge calculus from the root surface.

stroke, vertical,

n a single, continuous movement of an instrument over the external face being treated. The vertical stroke is in a direction that parallels the length of the tooth (from the root to the occlusal surface).

stroke volume,

n the volume of blood put out by the heart per heartbeat. It is directly proportional to the volume of blood filling the heart during diastole.

stroke, working,

n a single, continuous movement of an instrument that achieves a task or treatment.

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volume,

n measure of the quantity of space occupied by a substance, such as air.

volume, blood,

n the total amount of blood in the body.

volume, expiratory reserve,

n (reserve air, supplemental air, supplemental volume) the maximum volume that can be expired from the resting expiratory level.

volume, index of blood,

n See blood, volume index of.

volume, inspiratory reserve,

n (complemental air) the maximum volume that can be inspired from the end of tidal inspiration

volume, packed-cell,

n See hematocrit.

volume, residual,

n the volume of air in the lungs at the end of maximum expiration.

volume, stroke,

n See stroke volume.

volume, supplemental,

n See volume, expiratory reserve.

volume, tidal,

n the volume of gas inspired or expired during each respiratory cycle.

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stroke

1. a sudden and severe attack.

2. in humans, rupture or blockage of a blood vessel in the brain, depriving parts of the brain of blood supply, resulting in loss of consciousness, paralysis or other symptoms depending on the site and extent of brain damage; see also cerebral vascular accident. A very uncommon occurrence in animals.

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canine stroke

see canine idiopathic vestibular syndrome.

lightning stroke

see lightning injury.

sun stroke

see heat stroke.

stroke volume

the volume of blood ejected by the left ventricle during a single ejection.