Question

The sequence of events which take place during one complete heart beat is known as

• A. blood cycle
• B. oxygen cycle
• C. cardiac cycle
• D. carbon cycle

Answer 1

The correct option is C

cardiac cycle

The correct option is (C).

Explanation of the correct option:

Cardiac cycle:

1. It is the performance of heart from the beginning of one heart beat to the beginning of next.
2. It can also be considered as the sequence of events which take place during one complete heart beat.
3. It comprises of systole and diastole.

Explanation of the incorrect options:

Option A:

Blood cycle can be termed as the flow of blood through various parts of the body.

Option B:

Oxygen cycle is the circulation of oxygen through various forms of matter in the atmosphere.

Option D:

Carbon cycle is the series of events through which carbon compounds are inter converted in the atmosphere.

Final answer: The sequence of events which take place during one complete heart beat is known as cardiac cycle.