Some Target Organs Receive Both Sympathetic and Parasympathetic Inputs from Postganglionic

question 205

Multiple Choice

Some target organs receive both sympathetic and parasympathetic inputs from postganglionic neurons, which have opposite effects on the activity of that organ.Which of the following statements best explains this phenomenon?

• A) The target cells respond differently to afferent nerves than they do to efferent nerves.
• B) Acetylcholine has a stimulating effect on target cells, and norepinephrine has an inhibitory effect on them.
• C) When the fight-or-flight response wears off, the "rest and digest" response is activated.
• D) The target organ will respond to whichever division has the most receptors.
• E) The target cells respond in one way to acetylcholine and in the opposite way to norepinephrine.

Describe the general adaptation syndrome and its phases.

Identify the psychological and physiological effects of stress.

Explain the role of stress hormones like epinephrine and oxytocin.

Understand how stress affects health, particularly heart disease and immune function.

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