Define Systole and Diastole

question 45

Essay

Define systole and diastole. Which heart chambers are usually referenced when these terms are used?

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Definitions:

Opiate

A group of drugs derived from opium, used for pain relief, but also associated with addiction and dependence.

Excitatory Messages

Neurological signals that increase the likelihood of a neuron firing and thus stimulate action in the nervous system.

Inhibitory Message

A neurological or psychological signal that reduces or prevents certain actions, thoughts, or feelings.

Refractory Period

A resting period after orgasm, during which a man cannot achieve another orgasm.