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diastole    音标拼音: [dɑɪ'æstəl,i]
n. 心脏舒张,心脏舒张期,延长音节

心脏舒张,心脏舒张期,延长音节

diastole
n 1: the widening of the chambers of the heart between two
contractions when the chambers fill with blood

Diastole \Di*as"to*le\, n. [L., fr. Gr. ?, fr. ? to put asunder,
to separate; dia` through ? to set, to place.]
1. (Physiol.) The rhythmical expansion or dilatation of the
heart and arteries; -- correlative to {systole}, or
contraction.
[1913 Webster]

2. (Gram.) A figure by which a syllable naturally short is
made long.
[1913 Webster]


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  • Diastole - Wikipedia
    Atrial diastole is the relaxing of the atria, and ventricular diastole the relaxing of the ventricles The term originates from the Greek word διαστολή (diastolē), meaning "dilation", [1] from διά (diá, "apart") + στέλλειν (stéllein, "to send")
  • A look at diastolic blood pressure - Harvard Health
    Heart Health A look at diastolic blood pressure Aggressively lowering high systolic blood pressure (the top number) can reduce the risk of heart attack and stroke But how significant is the diastolic (bottom) number?
  • Diastole vs. Systole: Guide to Blood Pressure - Healthline
    Systolic pressure is the force of blood against artery walls when the heart contracts, while diastolic pressure reflects the force when the heart relaxes and refills
  • What Is Diastolic Blood Pressure and What’s Normal?
    What Happens During Diastole Your heart cycles between squeezing (systole) and relaxing (diastole) with every beat During diastole, the heart’s pumping chambers relax, valves between the upper and lower chambers open, and blood flows in to refill the ventricles About 75% of that filling happens passively as blood rushes in from the veins
  • Diastole vs. systole: Differences and more - Medical News Today
    Systole occurs when the heart contracts to pump blood out, and diastole occurs when the heart relaxes and refills after contraction
  • Understanding Blood Pressure Readings - American Heart Association
    Use our blood pressure chart to learn what your blood pressure numbers mean Systolic, diastolic? The American Heart Association helps you understand the various levels of blood pressure and how high blood pressure or hypertension is defined Also learn about prehypertension, hypertension, hypertensive crisis, and what is a healthy blood pressure
  • Diastole | Ventricular Filling, Cardiac Cycle Blood Pressure | Britannica
    Diastole, in the cardiac cycle, period of relaxation of the heart muscle, accompanied by the filling of the chambers with blood Diastole is followed in the cardiac cycle by a period of contraction, or systole (q v ), of the heart muscle
  • 19. 3 Cardiac Cycle – Anatomy Physiology 2e
    The period of relaxation that occurs as the chambers fill with blood is called diastole Both the atria and ventricles undergo systole and diastole, and it is essential that these components be carefully regulated and coordinated to ensure blood is pumped efficiently to the body
  • Cardiac cycle phases: Definition, systole and diastole | Kenhub
    Both the atria and the ventricles undergo alternating states of systole and diastole In other words, when the atria are in diastole, the ventricles are in systole and vice versa
  • Systole vs. Diastole: Understanding the Hearts Pumping and Filling . . .
    Diastole, from the Greek word for “dilation,” is the essential relaxation and filling phase of the heart During this period, the ventricular muscles relax, causing the pressure within the chambers to drop





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