Each of the Following Mechanisms Plays a Role in the Return

question 71

Multiple Choice

Each of the following mechanisms plays a role in the return of blood to the heart via veins EXCEPT which one?

• A) osmotic pressure exerted by plasma proteins in the blood
• B) squeezing action of skeletal muscles
• C) valves that permit the one-way flow of blood returning to the heart and prevent backflow
• D) pressure changes in the abdominal and thoracic cavities associated with breathing

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Definitions:

Anxiety Disorders

A group of mental health disorders characterized by significant feelings of anxiety and fear, impacting an individual's ability to function daily.

Neurotransmitters

Chemical agents facilitating signal transmission from one neuron to another via synapses in the nervous system.

Conditioning

A process of behavior modification by which a subject comes to respond in a desired manner to a previously neutral stimulus by associating it with a stimulus that elicits an automatic response.

Electric Shocks

A form of electrical stimulation applied to certain parts of the body, used in various scientific and medical procedures, sometimes for therapeutic purposes.