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lapo4ka [179]
3 years ago
10

Marking Brainlest !!!!!!!

Health
2 answers:
Ivahew [28]3 years ago
5 0

Answer:

Mark the other person the crown thing

Explanation:

7nadin3 [17]3 years ago
4 0

The cardiac cycle consists of two phases; a period where the heart muscle is relaxed, called <u>diastole</u>, and a period of contraction, called <u>systole</u>.

These are then divided into four stages. These are;

1.<u> </u><u>Ventricular Filling Period (VPF)</u>

2. <u>Isovolumetric Contraction Period (ICP)</u>

3. <u>Ventricular Ejection Period (VEP)</u>

4. <u>Isovolumetric Relaxation Period (IRP)</u>

At rest, cardiac diastole lasts for approximately 0.5 seconds, and cardiac systole lasts approximately 0.3 seconds to complete. However, during exercise, when the heart rate is increased the time period of <u>diastole</u> , especially, is reduced.

Hope this helps!


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