When a Blood Vessel Is Cut, Why Does Vasoconstriction Take

question 44

Multiple Choice

When a blood vessel is cut, why does vasoconstriction take place?

• A) To expose collagen fibers to which platelets can adhere
• B) To trigger the release of platelets from the surrounding tissues
• C) To initiate the activation of thrombin
• D) To entrap white blood cells
• E) To reduce the flow of blood

---

Definitions:

Target Behavior

A specific behavior that is chosen for change or intervention within a behavioral modification plan.

Shaping

A method in behavioral psychology for teaching complex behaviors by rewarding closer and closer approximations of the desired behavior.

Spontaneous Recovery

In learning theory, the reappearance of a conditioned response after a period of lessened response.

Extinct Response

The diminishing or disappearance of a conditioned response when the reinforcement is no longer provided.