The Mediastinum

question 73

Multiple Choice

The mediastinum

• A) contains the pleural cavities.
• B) separates the pleural cavities.
• C) contains the pericardial cavity.
• D) both A and C
• E) both B and C

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Definitions:

Fixed-Ratio

A schedule of reinforcement where a response is reinforced only after a specified number of responses, often used in behaviorist research and theories.

Fixed-Interval

A schedule of reinforcement where a response is rewarded only after a specified amount of time has elapsed, commonly used in behavioral psychology.

Variable-Ratio

A reinforcement schedule where rewards are given after a random number of responses, encouraging high and steady response rates.

Behavior Modification

Using conditioning to improve behavior.