Which of the Events Below Does NOT Occur When the Semilunar

question 65

Multiple Choice

Which of the events below does NOT occur when the semilunar valves are open?

• A) Ventricles are in diastole.
• B) Blood enters pulmonary arteries and the aorta.
• C) Ventricles are in systole.
• D) AV valves are closed.

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Definitions:

Positive Reinforcement

The addition of a pleasant stimulus following a desired behavior, increasing the likelihood of that behavior being repeated.

Tertiary Reinforcement

A type of reinforcement that uses a stimulus indirectly linked to a primary or secondary reinforcer to modify behavior, such as money or tokens.

Conditional Reinforcement

The process by which stimuli that are associated with a primary reinforcer also become reinforcers themselves, often through classical conditioning.

Postreinforcement Pause

A pause in responding that commonly occurs after the delivery of a reinforcer under certain schedules of reinforcement, such as a fixed ratio schedule.