diastole


Also found in: Dictionary, Thesaurus, Encyclopedia, Wikipedia.
Related to diastole: diastolic pressure, atrial diastole

diastole

 [di-as´to-le]
the phase of the cardiac cycle in which the heart relaxes between contractions; specifically, the period when the two ventricles are dilated by the blood flowing into them. See also blood pressure and heart. adj., adj diastol´ic.
electrical diastole that time during which the cell rests; it is represented by phase 4 of the action potential.

di·as·to·le

(dī-as'tō-lē),
Normal postsystolic dilation of the heart cavities, during which they fill with blood; diastole of the atria precedes that of the ventricles; diastole of either chamber alternates rhythmically with systole or contraction of that chamber.
[G. diastolē, dilation]

diastole

/di·as·to·le/ (di-as´tah-le) the dilatation, or the period of dilatation, of the heart, especially of the ventricles.diastol´ic

diastole

(dī-ăs′tə-lē)
n.
1. Physiology The normal rhythmically occurring relaxation and dilatation of the heart chambers, especially the ventricles, during which they fill with blood.
2. The lengthening of a normally short syllable in Greek and Latin verse.

di′as·tol′ic (dī′ə-stŏl′ĭk) adj.

diastole

[dī·as′təlē]
Etymology: Gk, dia + stellein, to set
the period between contractions of the atria or the ventricles during which blood enters the relaxed chambers from the systemic circulation and the lungs. Ventricular diastole begins with the onset of the second heart sound and ends with the first heart sound. Compare systole. See also adiastole.
enlarge picture
Diastole

diastole

Cardiology The dilatory–relaxation phase of the cardiac cycle during which the heart's chambers fill with blood

di·as·to·le

(dī-as'tŏ-lē)
Normal postsystolic dilation of the heart cavities, during which they fill with blood; diastole of the atria precedes that of the ventricles; diastole of either chamber alternates rhythmically with systole or contraction of that chamber.
[G. diastolē, dilation]

diastole

The period in the heart cycle when the main pumping chambers (the ventricles) are relaxed and filling with blood from the upper chambers (the atria).

diastole

see HEART, CARDIAC CYCLE.

diastole

the phase between beats when the heart muscle is relaxed, and the chambers are filling. See also cardiac cycle, electrocardiogram, venous return.

diastole

period within the cardiac cycle when atria and ventricles relax, dilate and fill with blood (see systole)

di·as·to·le

(dī-as'tŏ-lē)
Normal postsystolic dilation of the heart cavities, during which they fill with blood.
[G. diastolē, dilation]

diastole (dīas´təlē),

n 1. the rhythmic period of relaxation and dilation of a chamber of the heart during which it fills with blood.
n 2. the period after the contraction of the heart muscle, during which the aorta releases the potential energy stored in its elastic tissue. The energy is converted into kinetic energy and sustains the pressure necessary for steady flow of blood in the vessels. The pressure measured at this period is the lowest attained during the cardiac pumping cycle and is called the
diastolic pressure. The normal pressure in the adult is approximately 120/80 mm Hg (systolic/diastolic) and increases with age from 128/85 at 45 years of age to 135/89 at 60 years of age. See also blood pressure classification.

diastole

the phase of the cardiac cycle in which the heart relaxes between contractions; specifically, the period when the two ventricles are dilated by the blood flowing into them. See also blood pressure and heart.
References in periodicals archive ?
Figs 11a and 11b show an example of MRI tagging at end diastole and end systole, respectively.
In this study, the diameter of internal cavity of left ventricle at the end of systole and diameter of internal cavity of left ventricle at the end of diastole are measured.
I'm drawn to how Hayden sings of the body electric here: "brain matter, diastole, systole .
If the older left ventricle fills more slowly with blood, does this mean it has less blood pooled at the end of diastole and thus less to send out to the body during the next contraction?
For the evaluation of mural stenosis, the transmitral gradient at rest during diastole was assessed by the pressure half-time using continuous-wave Doppler.
5) Pioneering cardiovascular surgeon Dwight Harken suggested that the removal of blood from the femoral artery during systole, and its rapid replacement during diastole, would both assist cardiac output and unload the heart simultaneously.
Beginner algebra aloe amino ballet bandage barium caboose cadet calico east editor gallop garlic helmet hickory ibis icicle iodine Advanced jelly jogger judo aardvark acanthus abscissa bismuth bolus bouquet decibel diastole discus garbonzo gazelle glottis glycol hatchet helium hoist hyaline hydraulic macula malaria mascot mitosis molecule monocyte narrator nitrite nubbin obsequious octane opinion pachyderm
Beginner Words algebra aloe amino ballet bandage barium caboose cadet calico east editor gallop garlic helmet hickory ibis icicle iodine jelly jogger judo Advanced Words aardvark acanthus abscissa bismuth bolus bouquet decibel diastole discus garbonzo gazelle glottis glycol hatchet helium hoist hyaline hydraulic macula malaria mascot mitosis molecule monocyte narrator nitrite nubbin obsequious octane opinion pachyderm palsy sachet saffron saline trance trailer tremor
Such is the drastic diastole and systole of Pierre" (251).
Echocardiography revealed a grossly thickened pericardium with abnormal septal motion encroaching on the right ventricular cavity in diastole, and the CT scan confirmed a diffusely thickened pericardium (Figure 2).
Just the systole, diastole of our own slumped crusade, tinny pages for Dr.
MCP" selectively stimulates a patient's muscle groups electrically and affects their contraction in synchronization with the early diastole cardiac cycle, which acts to relieve the heart from workload and improve blood flow.