Psychology, asked by gawateanu, 2 months ago

why there is increase in heart rate and force of contraction?

Answers

Answered by chitrashri77

0

Answer:

An increase in preload results in an increased force of contraction by Starling's law of the heart; this does not require a change in contractility. An increase in afterload will increase contractility (through the Anrep effect). An increase in heart rate will increase contractility (through the Bowditch effect).

Answered by soyeonkim2000

0

Answer: The heart rate and force of contraction of the heart increase to provide blood to areas necessary for response to the stressful situation.

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