| 单词 | cardiac cycle |
| 释义 | cardiac cyclenounone complete heartbeat, consisting of one contraction and relaxation of the heart. Words nearby cardiac cyclecardiac arrest, cardiac arrhythmia, cardiac asthma, cardiac catheter, cardiac cirrhosis, cardiac cycle, cardiac decompression, cardiac dysrhythmia, cardiac edema, cardiac ganglion, cardiac gland Dictionary.com UnabridgedBased on the Random House Unabridged Dictionary, © Random House, Inc. 2020 Medical definitions for cardiac cyclecardiac cycle n.A complete beat of the heart, including systole and diastole and the intervals between, beginning with any event in the heart's action to the moment when that same event is repeated. The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company. Scientific definitions for cardiac cyclecardiac cycle The rhythmic contraction (systole) and relaxation (diastole) of the chambers of the heart that corresponds to one heartbeat. During the cardiac cycle, blood is pumped out of the heart into the aorta and the pulmonary artery, and blood reenters the heart from the venae cavae and the pulmonary veins. The heart's valves open and close in response to pressure differences between the chambers. The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved. |
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