Which of These Criteria Must Be Met for the Heart

question 119

Multiple Choice

Which of these criteria must be met for the heart to function efficiently

• A)Excitation and consequently contraction of the cardiac muscle fibres of each heart chamber should be coordinated to ensure efficient pumping.
• B)The ventricles should be excited and contract before the onset of atrial contraction to ensure that ventricular filling is complete.
• C)The right side of the heart should contract first to ensure that oxygenated blood is delivered to the heart before the left side contracts.
• D)The fluid pressure in the pericardial cavity must be high for the heart to function efficiently.

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Definitions:

Beta

An indicator of the degree of variability or systematic risk associated with a security or portfolio relative to the broader market.

Treynor Measure

A performance metric that measures the returns earned in excess of that which could have been earned on a riskless investment per each unit of market risk.

Standard Deviation

A measure of the dispersion or variability in a set of values, used to assess the risk associated with a particular security or investment portfolio.

Beta

A measure of a stock's volatility in relation to the overall market; a beta above 1 indicates the stock is more volatile than the market, while a beta below 1 indicates the stock is less volatile.