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Ventricle diastole is the period during which the ventricles are relaxing. During ventricular diastole, the pressure in the (left and right) ventricles drops from the peak that it reaches in systole.
When the pressure in the left ventricle drops to below the pressure in the left atrium, the mitral(bicuspid) valve opens, causing accumulated blood from the atrium to flow into the ventricles.
Wiki User
∙ 13y ago
Wiki User
∙ 11y agothe ventricular muscles relax and the semilunar valves close to prevent backflow of blood. the auricular muscles remain relaxed for a split second (joint diastole) and auricular systole takes place even while ventricular diastole is still taking place.
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Where in the cells does cellular respiration takes place?
it takes place in the mitochondria.
What type of cell reproduction takes place once fertilization occurs?
Mitosis
What is the difference between cytokinesis in plant and animal cells?
In plants cytokinesis occurs by the formation of cell plate which takes place by centrifugal method while in animals it occurs by the formation of cleavage furrow which takes place by centripetal method.
What stage of cell respiration takes place in the cytoplasm of the cell?
Both Aerobic and Anaerobic cell respiration occurs in the Mitochondria.
Where does photsynthesis take place?
In the chloroplastIt takes place within chloroplasts.In prokariyotes it takes place within photosynthetic filaments
During which phase of the cardiac cycle do the ventricles of the heart contract?
There are many phases of the cardiac cycle- in total five stages occur. phase 1) - Isovolumetric ventricular contraction In response to ventricular depolarization, tension in the ventricles increases. The rise in pressure within the ventricles leads closure of the mitral and tricuspid valves. The pulmonic and aortic valves stay closes during the entire phase. 2) ventricular ejection: When ventricular pressure exceeds aortic and pulmonary arterial pressure 80MMHG- the aortic and pulmonic valves open and the ventricles eject 70% of the blood. 3) Isovolumetric relaxation: when ventricular pressure falls below pressure in the aorta and pulmonary artery, the aortic and pulmonic valves close. All valves are closed during this phase. Atrial diastole occurs as blood fills the atria.4) ventricular filling: atrial pressure exceeds ventricular pressure which causes the mitral and tricuspid valves to open. Blood then flows passively into the ventricles. About 70% of ventricular filling takes place during this phase. 5) atrial systole: known as the atrial kick, atrial systole coinciding with late ventricular diastole supplies the ventricles with the remaining blood for each heart beat. Diastole: This occurs in-between heartbeats to allow blood to refill the heartSystole: when the atria and ventricles contact For more information e-mail me: Elliottcollins@hotmail.co.uk I also have a VERY helpfull link belowHow_heart_works
What important process takes place inside a cell?
The important process that takes place in a cell is respiration and this occurs in the mitochondria.
Where in the cells does cellular respiration takes place?
it takes place in the mitochondria.
How do you spell happands?
The likely word is happens (occurs, takes place).
Photosynthesis occurs in what organelles?
Photosynthesis occurs in the chloroplasts of plants and green algae.
Spermatogenesis takes place within the?
Spermatogenesis occurs in the seminiferous tubules of the testis.
What type of cell reproduction takes place once fertilization occurs?
Mitosis
Fertilization normally takes place in the?
Fertilization normally occurs in the fallopian tube
The process that occurs when vaporization takes place only on the surface of a liquid?
evaporation
What occurs in the lithosphere?
The natural disaster that takes place in the lithosphere is Earthquake.
Where in the cell does respiration take place?
Most of cellular respiration occurs within the mitochondria of the cell. Glycolysis occurs outside of the mitochondria, while the Krebs Cycle and ETC takes place inside the mitochondria.
What is the difference between cytokinesis in plant and animal cells?
In plants cytokinesis occurs by the formation of cell plate which takes place by centrifugal method while in animals it occurs by the formation of cleavage furrow which takes place by centripetal method.
