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systole    
n. 心脏收缩

心脏收缩

systole
n 1: the contraction of the chambers of the heart (especially
the ventricles) to drive blood into the aorta and pulmonary
artery

Systole \Sys"to*le\, n. [NL., fr. Gr. ?, fr. ? to contract; sy`n
with ? to set, place.]
1. (Gram.) The shortening of the long syllable.
[1913 Webster]

2. (Physiol. & Biol.) The contraction of the heart and
arteries by which the blood is forced onward and the
circulation kept up; also, the contraction of a
rhythmically pulsating contractile vacuole; -- correlative
to {diastole}. -- {Sys*tol"ic}, a.
[Webster 1913 Suppl.]


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  • Systole - Wikipedia
    Electrical waves track a systole (a contraction) of the heart The end-point of the P wave depolarization is the start-point of the atrial stage of systole
  • 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
  • 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
  • Systole | Definition, Cycle, Facts | Britannica
    systole, period of contraction of the ventricles of the heart that occurs between the first and second heart sounds of the cardiac cycle (the sequence of events in a single heart beat) Systole causes the ejection of blood into the aorta and pulmonary trunk
  • 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 . . .
    During systole, the muscular walls of the heart, particularly the ventricles, contract to generate the pressure required to propel blood into the arteries Conversely, diastole is a period of relaxation and refilling, where the heart chambers expand to draw blood in
  • 19. 3 Cardiac Cycle – Anatomy Physiology 2e
    During ventricular systole, pressure rises in the ventricles, pumping blood into the pulmonary trunk from the right ventricle and into the aorta from the left ventricle
  • The Cardiac Cycle | Wigger’s diagram | Geeky Medics
    When in a contractile state, this is called systole When in a relaxed state, this is called diastole The cycle can then be divided into three stages: Atrial systole: contraction of the atria Ventricular systole: contraction of the ventricles This follows atrial systole after 0 1-0 2 seconds
  • Cardiac Cycle - CV Physiology
    Systole represents the time during which the left and right ventricles contract and eject blood into the aorta and pulmonary artery, respectively During systole, the aortic and pulmonic valves open to permit ejection into the aorta and pulmonary artery
  • Systole | definition of systole by Medical dictionary
    Atrial systole, in which blood passes down into the ventricles, precedes the more powerful ventricular systole in which blood is driven into the arteries Systole alternates with a relaxing period called DIASTOLE





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